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-rw-r--r--absl/strings/BUILD.bazel25
-rw-r--r--absl/strings/CMakeLists.txt780
-rw-r--r--absl/strings/charconv_test.cc14
-rw-r--r--absl/strings/internal/charconv_bigint.h14
-rw-r--r--absl/strings/internal/pow10_helper.cc120
-rw-r--r--absl/strings/internal/pow10_helper.h36
-rw-r--r--absl/strings/internal/pow10_helper_test.cc120
-rw-r--r--absl/strings/internal/resize_uninitialized.h35
-rw-r--r--absl/strings/internal/resize_uninitialized_test.cc24
-rw-r--r--absl/strings/internal/str_format/arg.h2
-rw-r--r--absl/strings/match.cc13
-rw-r--r--absl/strings/numbers_test.cc3
-rw-r--r--absl/strings/string_view.h8
13 files changed, 775 insertions, 419 deletions
diff --git a/absl/strings/BUILD.bazel b/absl/strings/BUILD.bazel
index 6d7c2619a530..7635a6198abe 100644
--- a/absl/strings/BUILD.bazel
+++ b/absl/strings/BUILD.bazel
@@ -15,7 +15,7 @@
 #
 
 load(
-    "//absl:copts.bzl",
+    "//absl:copts/configure_copts.bzl",
     "ABSL_DEFAULT_COPTS",
     "ABSL_TEST_COPTS",
     "ABSL_EXCEPTIONS_FLAG",
@@ -413,6 +413,7 @@ cc_test(
     copts = ABSL_TEST_COPTS,
     visibility = ["//visibility:private"],
     deps = [
+        ":pow10_helper",
         ":strings",
         "//absl/base",
         "//absl/base:core_headers",
@@ -471,6 +472,8 @@ cc_test(
     srcs = ["charconv_test.cc"],
     copts = ABSL_TEST_COPTS,
     deps = [
+        ":pow10_helper",
+        ":str_format",
         ":strings",
         "//absl/base",
         "@com_google_googletest//:gtest_main",
@@ -659,3 +662,23 @@ cc_test(
         "@com_google_googletest//:gtest_main",
     ],
 )
+
+cc_library(
+    name = "pow10_helper",
+    testonly = True,
+    srcs = ["internal/pow10_helper.cc"],
+    hdrs = ["internal/pow10_helper.h"],
+    visibility = ["//visibility:private"],
+)
+
+cc_test(
+    name = "pow10_helper_test",
+    srcs = ["internal/pow10_helper_test.cc"],
+    copts = ABSL_TEST_COPTS,
+    visibility = ["//visibility:private"],
+    deps = [
+        ":pow10_helper",
+        ":str_format",
+        "@com_google_googletest//:gtest_main",
+    ],
+)
diff --git a/absl/strings/CMakeLists.txt b/absl/strings/CMakeLists.txt
index a6574c17af3b..aed54dc4e343 100644
--- a/absl/strings/CMakeLists.txt
+++ b/absl/strings/CMakeLists.txt
@@ -14,449 +14,505 @@
 # limitations under the License.
 #
 
-
-list(APPEND STRINGS_PUBLIC_HEADERS
-  "ascii.h"
-  "charconv.h"
-  "escaping.h"
-  "match.h"
-  "numbers.h"
-  "str_cat.h"
-  "string_view.h"
-  "strip.h"
-  "str_join.h"
-  "str_replace.h"
-  "str_split.h"
-  "substitute.h"
-)
-
-
-list(APPEND STRINGS_INTERNAL_HEADERS
-  "internal/char_map.h"
-  "internal/charconv_bigint.h"
-  "internal/charconv_parse.h"
-  "internal/memutil.h"
-  "internal/ostringstream.h"
-  "internal/resize_uninitialized.h"
-  "internal/stl_type_traits.h"
-  "internal/str_join_internal.h"
-  "internal/str_split_internal.h"
-  "internal/utf8.h"
-)
-
-
-
-# add string library
-list(APPEND STRINGS_SRC
-  "ascii.cc"
-  "charconv.cc"
-  "escaping.cc"
-  "internal/charconv_bigint.cc"
-  "internal/charconv_parse.cc"
-  "internal/memutil.cc"
-  "internal/memutil.h"
-  "internal/utf8.cc"
-  "internal/ostringstream.cc"
-  "match.cc"
-  "numbers.cc"
-  "str_cat.cc"
-  "str_replace.cc"
-  "str_split.cc"
-  "string_view.cc"
-  "substitute.cc"
-  ${STRINGS_PUBLIC_HEADERS}
-  ${STRINGS_INTERNAL_HEADERS}
-)
-set(STRINGS_PUBLIC_LIBRARIES absl::base absl_internal_throw_delegate)
-
-absl_library(
-  TARGET
-    absl_strings
-  SOURCES
-    ${STRINGS_SRC}
-  PUBLIC_LIBRARIES
-    ${STRINGS_PUBLIC_LIBRARIES}
-  EXPORT_NAME
+absl_cc_library(
+  NAME
     strings
-)
-
-# add str_format library
-absl_header_library(
-  TARGET
-    absl_str_format
-  PUBLIC_LIBRARIES
-    str_format_internal
-  EXPORT_NAME
-    str_format
-)
-
-# str_format_internal
-absl_library(
-  TARGET
-    str_format_internal
-  SOURCES
-    "internal/str_format/arg.cc"
-    "internal/str_format/bind.cc"
-    "internal/str_format/extension.cc"
-    "internal/str_format/float_conversion.cc"
-    "internal/str_format/output.cc"
-    "internal/str_format/parser.cc"
-    "internal/str_format/arg.h"
-    "internal/str_format/bind.h"
-    "internal/str_format/checker.h"
-    "internal/str_format/extension.h"
-    "internal/str_format/float_conversion.h"
-    "internal/str_format/output.h"
-    "internal/str_format/parser.h"
-  PUBLIC_LIBRARIES
-    str_format_extension_internal
-    absl::strings
-    absl::base
-    absl::numeric
-    absl::inlined_vector
-    absl::span
-)
-
-# str_format_extension_internal
-absl_library(
-  TARGET
-    str_format_extension_internal
-  SOURCES
-    "internal/str_format/extension.cc"
-    "internal/str_format/extension.h"
-    "internal/str_format/output.cc"
-    "internal/str_format/output.h"
-  PUBLIC_LIBRARIES
+  HDRS
+    "ascii.h"
+    "charconv.h"
+    "escaping.h"
+    "match.h"
+    "numbers.h"
+    "str_cat.h"
+    "str_join.h"
+    "str_replace.h"
+    "str_split.h"
+    "string_view.h"
+    "strip.h"
+    "substitute.h"
+  SRCS
+    "ascii.cc"
+    "charconv.cc"
+    "escaping.cc"
+    "internal/charconv_bigint.cc"
+    "internal/charconv_bigint.h"
+    "internal/charconv_parse.cc"
+    "internal/charconv_parse.h"
+    "internal/memutil.cc"
+    "internal/memutil.h"
+    "internal/stl_type_traits.h"
+    "internal/str_join_internal.h"
+    "internal/str_split_internal.h"
+    "match.cc"
+    "numbers.cc"
+    "str_cat.cc"
+    "str_replace.cc"
+    "str_split.cc"
+    "string_view.cc"
+    "substitute.cc"
+  COPTS
+    ${ABSL_DEFAULT_COPTS}
+  DEPS
+    absl::strings_internal
     absl::base
-    absl::strings
-)
-
-#
-## TESTS
-#
-
-# test match_test
-set(MATCH_TEST_SRC "match_test.cc")
-set(MATCH_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+    absl::bits
+    absl::config
+    absl::core_headers
+    absl::endian
+    absl::throw_delegate
+    absl::memory
+    absl::type_traits
+    absl::int128
+  PUBLIC
+)
+
+absl_cc_library(
+  NAME
+    strings_internal
+  HDRS
+    "internal/char_map.h"
+    "internal/ostringstream.h"
+    "internal/resize_uninitialized.h"
+    "internal/utf8.h"
+  SRCS
+    "internal/ostringstream.cc"
+    "internal/utf8.cc"
+  COPTS
+    ${ABSL_DEFAULT_COPTS}
+  DEPS
+    absl::core_headers
+    absl::endian
+    absl::type_traits
+)
+
+absl_cc_test(
+  NAME
     match_test
-  SOURCES
-    ${MATCH_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${MATCH_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "match_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    gmock_main
 )
 
-
-# test escaping_test
-set(ESCAPING_TEST_SRC "escaping_test.cc")
-set(ESCAPING_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     escaping_test
-  SOURCES
-    ${ESCAPING_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${ESCAPING_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "escaping_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    absl::fixed_array
+    gmock_main
 )
 
-
-# test ascii_test
-set(ASCII_TEST_SRC "ascii_test.cc")
-set(ASCII_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     ascii_test
-  SOURCES
-    ${ASCII_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${ASCII_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "ascii_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    gmock_main
 )
 
-
-# test memutil_test
-set(MEMUTIL_TEST_SRC "internal/memutil_test.cc")
-set(MEMUTIL_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     memutil_test
-  SOURCES
-    ${MEMUTIL_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${MEMUTIL_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/memutil.h"
+    "internal/memutil_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    gmock_main
 )
 
-
-# test utf8_test
-set(UTF8_TEST_SRC "internal/utf8_test.cc")
-set(UTF8_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     utf8_test
-  SOURCES
-    ${UTF8_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${UTF8_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/utf8_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings_internal
+    absl::base
+    absl::core_headers
+    gmock_main
 )
 
-
-# test string_view_test
-set(STRING_VIEW_TEST_SRC "string_view_test.cc")
-set(STRING_VIEW_TEST_PUBLIC_LIBRARIES absl::strings absl_internal_throw_delegate absl::base)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     string_view_test
-  SOURCES
-    ${STRING_VIEW_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STRING_VIEW_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "string_view_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+    ${ABSL_EXCEPTIONS_FLAG}
+  LINKOPTS
+    ${ABSL_EXCEPTIONS_FLAG_LINKOPTS}
+  DEPS
+    absl::strings
+    absl::config
+    absl::core_headers
+    absl::dynamic_annotations
+    gmock_main
 )
 
-
-# test substitute_test
-set(SUBSTITUTE_TEST_SRC "substitute_test.cc")
-set(SUBSTITUTE_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     substitute_test
-  SOURCES
-    ${SUBSTITUTE_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${SUBSTITUTE_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "substitute_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    gmock_main
 )
 
-
-# test str_replace_test
-set(STR_REPLACE_TEST_SRC "str_replace_test.cc")
-set(STR_REPLACE_TEST_PUBLIC_LIBRARIES absl::strings absl::base absl_internal_throw_delegate)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_replace_test
-  SOURCES
-    ${STR_REPLACE_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STR_REPLACE_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "str_replace_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    gmock_main
 )
 
-
-# test str_split_test
-set(STR_SPLIT_TEST_SRC "str_split_test.cc")
-set(STR_SPLIT_TEST_PUBLIC_LIBRARIES absl::strings absl::base absl_internal_throw_delegate)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_split_test
-  SOURCES
-    ${STR_SPLIT_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STR_SPLIT_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "str_split_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    absl::core_headers
+    absl::dynamic_annotations
+    gmock_main
 )
 
-
-# test ostringstream_test
-set(OSTRINGSTREAM_TEST_SRC "internal/ostringstream_test.cc")
-set(OSTRINGSTREAM_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     ostringstream_test
-  SOURCES
-    ${OSTRINGSTREAM_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${OSTRINGSTREAM_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/ostringstream_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings_internal
+    gmock_main
 )
 
-
-# test resize_uninitialized_test
-set(RESIZE_UNINITIALIZED_TEST_SRC "internal/resize_uninitialized_test.cc")
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     resize_uninitialized_test
-  SOURCES
-    ${RESIZE_UNINITIALIZED_TEST_SRC}
+  SRCS
+    "internal/resize_uninitialized.h"
+    "internal/resize_uninitialized_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::base
+    absl::core_headers
+    absl::type_traits
+    gmock_main
 )
 
-
-# test str_join_test
-set(STR_JOIN_TEST_SRC "str_join_test.cc")
-set(STR_JOIN_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_join_test
-  SOURCES
-    ${STR_JOIN_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STR_JOIN_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "str_join_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    absl::core_headers
+    absl::memory
+    gmock_main
 )
 
-
-# test str_cat_test
-set(STR_CAT_TEST_SRC "str_cat_test.cc")
-set(STR_CAT_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_cat_test
-  SOURCES
-    ${STR_CAT_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STR_CAT_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "str_cat_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    gmock_main
 )
 
-
-# test numbers_test
-set(NUMBERS_TEST_SRC "numbers_test.cc")
-set(NUMBERS_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     numbers_test
-  SOURCES
-    ${NUMBERS_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${NUMBERS_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/numbers_test_common.h"
+    "numbers_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    absl::core_headers
+    absl::pow10_helper
+    gmock_main
 )
 
-
-# test strip_test
-set(STRIP_TEST_SRC "strip_test.cc")
-set(STRIP_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     strip_test
-  SOURCES
-    ${STRIP_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${STRIP_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "strip_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    gmock_main
 )
 
-
-# test char_map_test
-set(CHAR_MAP_TEST_SRC "internal/char_map_test.cc")
-set(CHAR_MAP_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     char_map_test
-  SOURCES
-    ${CHAR_MAP_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${CHAR_MAP_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/char_map_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings_internal
+    gmock_main
 )
 
-
-# test charconv_test
-set(CHARCONV_TEST_SRC "charconv_test.cc")
-set(CHARCONV_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     charconv_test
-  SOURCES
-    ${CHARCONV_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${CHARCONV_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "charconv_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::str_format
+    absl::base
+    absl::pow10_helper
+    gmock_main
 )
 
-
-# test charconv_parse_test
-set(CHARCONV_PARSE_TEST_SRC "internal/charconv_parse_test.cc")
-set(CHARCONV_PARSE_TEST_PUBLIC_LIBRARIES absl::strings)
-
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     charconv_parse_test
-  SOURCES
-    ${CHARCONV_PARSE_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${CHARCONV_PARSE_TEST_PUBLIC_LIBRARIES}
+  SRCS
+    "internal/charconv_parse.h"
+    "internal/charconv_parse_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    gmock_main
 )
 
+absl_cc_test(
+  NAME
+    charconv_bigint_test
+  SRCS
+    "internal/charconv_bigint.h"
+    "internal/charconv_bigint_test.cc"
+    "internal/charconv_parse.h"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::strings
+    absl::base
+    gmock_main
+)
 
-# test charconv_bigint_test
-set(CHARCONV_BIGINT_TEST_SRC "internal/charconv_bigint_test.cc")
-set(CHARCONV_BIGINT_TEST_PUBLIC_LIBRARIES absl::strings)
+absl_cc_library(
+  NAME
+    str_format
+  HDRS
+    "str_format.h"
+  COPTS
+    ${ABSL_DEFAULT_COPTS}
+  DEPS
+    absl::str_format_internal
+  PUBLIC
+)
 
-absl_test(
-  TARGET
-    charconv_bigint_test
-  SOURCES
-    ${CHARCONV_BIGINT_TEST_SRC}
-  PUBLIC_LIBRARIES
-    ${CHARCONV_BIGINT_TEST_PUBLIC_LIBRARIES}
-)
-# test str_format_test
-absl_test(
-  TARGET
+absl_cc_library(
+  NAME
+    str_format_internal
+  HDRS
+    "internal/str_format/arg.h"
+    "internal/str_format/bind.h"
+    "internal/str_format/checker.h"
+    "internal/str_format/extension.h"
+    "internal/str_format/float_conversion.h"
+    "internal/str_format/output.h"
+    "internal/str_format/parser.h"
+  SRCS
+    "internal/str_format/arg.cc"
+    "internal/str_format/bind.cc"
+    "internal/str_format/extension.cc"
+    "internal/str_format/float_conversion.cc"
+    "internal/str_format/output.cc"
+    "internal/str_format/parser.cc"
+  COPTS
+    ${ABSL_DEFAULT_COPTS}
+  DEPS
+    absl::strings
+    absl::core_headers
+    absl::inlined_vector
+    absl::type_traits
+    absl::int128
+    absl::span
+)
+
+absl_cc_test(
+  NAME
     str_format_test
-  SOURCES
+  SRCS
     "str_format_test.cc"
-  PUBLIC_LIBRARIES
-    absl::base
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
     absl::str_format
     absl::strings
+    absl::core_headers
+    gmock_main
+)
+
+absl_cc_test(
+  NAME
+    str_format_extension_test
+  SRCS
+    "internal/str_format/extension_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format
+    absl::str_format_internal
+    gmock_main
+)
+
+absl_cc_test(
+  NAME
+    str_format_arg_test
+  SRCS
+    "internal/str_format/arg_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format
+    absl::str_format_internal
+    gmock_main
 )
 
-# test str_format_bind_test
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_format_bind_test
-  SOURCES
+  SRCS
     "internal/str_format/bind_test.cc"
-  PUBLIC_LIBRARIES
-    str_format_internal
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format_internal
+    gmock_main
 )
 
-# test str_format_checker_test
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_format_checker_test
-  SOURCES
+  SRCS
     "internal/str_format/checker_test.cc"
-  PUBLIC_LIBRARIES
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
     absl::str_format
+    gmock_main
 )
 
-# test str_format_convert_test
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_format_convert_test
-  SOURCES
+  SRCS
     "internal/str_format/convert_test.cc"
-  PUBLIC_LIBRARIES
-    str_format_internal
-    absl::numeric
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format_internal
+    absl::int128
+    gmock_main
 )
 
-# test str_format_output_test
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_format_output_test
-  SOURCES
+  SRCS
     "internal/str_format/output_test.cc"
-  PUBLIC_LIBRARIES
-    str_format_extension_internal
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format_internal
+    gmock_main
 )
 
-# test str_format_parser_test
-absl_test(
-  TARGET
+absl_cc_test(
+  NAME
     str_format_parser_test
-  SOURCES
+  SRCS
     "internal/str_format/parser_test.cc"
-  PUBLIC_LIBRARIES
-    str_format_internal
-    absl::base
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::str_format_internal
+    absl::core_headers
+    gmock_main
+)
+
+absl_cc_library(
+  NAME
+    pow10_helper
+  HDRS
+    "internal/pow10_helper.h"
+  SRCS
+    "internal/pow10_helper.cc"
+  TESTONLY
+)
+
+absl_cc_test(
+  NAME
+    pow10_helper_test
+  SRCS
+    "internal/pow10_helper_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::pow10_helper
+    absl::str_format
+    gmock_main
 )
-
diff --git a/absl/strings/charconv_test.cc b/absl/strings/charconv_test.cc
index 89418fe948ff..d07537eb590c 100644
--- a/absl/strings/charconv_test.cc
+++ b/absl/strings/charconv_test.cc
@@ -19,7 +19,9 @@
 
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
+#include "absl/strings/internal/pow10_helper.h"
 #include "absl/strings/str_cat.h"
+#include "absl/strings/str_format.h"
 
 #ifdef _MSC_FULL_VER
 #define ABSL_COMPILER_DOES_EXACT_ROUNDING 0
@@ -31,6 +33,8 @@
 
 namespace {
 
+using absl::strings_internal::Pow10;
+
 #if ABSL_COMPILER_DOES_EXACT_ROUNDING
 
 // Tests that the given string is accepted by absl::from_chars, and that it
@@ -678,7 +682,8 @@ void TestOverflowAndUnderflow(
     auto result =
         absl::from_chars(input.data(), input.data() + input.size(), actual);
     EXPECT_EQ(result.ec, std::errc());
-    EXPECT_EQ(expected, actual);
+    EXPECT_EQ(expected, actual)
+        << absl::StrFormat("%a vs %a", expected, actual);
   }
   // test legal values near upper_bound
   for (index = upper_bound, step = 1; index > lower_bound;
@@ -690,7 +695,8 @@ void TestOverflowAndUnderflow(
     auto result =
         absl::from_chars(input.data(), input.data() + input.size(), actual);
     EXPECT_EQ(result.ec, std::errc());
-    EXPECT_EQ(expected, actual);
+    EXPECT_EQ(expected, actual)
+        << absl::StrFormat("%a vs %a", expected, actual);
   }
   // Test underflow values below lower_bound
   for (index = lower_bound - 1, step = 1; index > -1000000;
@@ -747,7 +753,7 @@ TEST(FromChars, HexdecimalFloatLimits) {
 // acceptable exponents in this test.
 TEST(FromChars, DecimalDoubleLimits) {
   auto input_gen = [](int index) { return absl::StrCat("1.0e", index); };
-  auto expected_gen = [](int index) { return std::pow(10.0, index); };
+  auto expected_gen = [](int index) { return Pow10(index); };
   TestOverflowAndUnderflow<double>(input_gen, expected_gen, -323, 308);
 }
 
@@ -759,7 +765,7 @@ TEST(FromChars, DecimalDoubleLimits) {
 // acceptable exponents in this test.
 TEST(FromChars, DecimalFloatLimits) {
   auto input_gen = [](int index) { return absl::StrCat("1.0e", index); };
-  auto expected_gen = [](int index) { return std::pow(10.0, index); };
+  auto expected_gen = [](int index) { return Pow10(index); };
   TestOverflowAndUnderflow<float>(input_gen, expected_gen, -45, 38);
 }
 
diff --git a/absl/strings/internal/charconv_bigint.h b/absl/strings/internal/charconv_bigint.h
index 5c579437e521..9d1a1bffe175 100644
--- a/absl/strings/internal/charconv_bigint.h
+++ b/absl/strings/internal/charconv_bigint.h
@@ -103,12 +103,12 @@ class BigUnsigned {
         SetToZero();
         return;
       }
-      size_ = std::min(size_ + word_shift, max_words);
+      size_ = (std::min)(size_ + word_shift, max_words);
       count %= 32;
       if (count == 0) {
         std::copy_backward(words_, words_ + size_ - word_shift, words_ + size_);
       } else {
-        for (int i = std::min(size_, max_words - 1); i > word_shift; --i) {
+        for (int i = (std::min)(size_, max_words - 1); i > word_shift; --i) {
           words_[i] = (words_[i - word_shift] << count) |
                       (words_[i - word_shift - 1] >> (32 - count));
         }
@@ -267,7 +267,7 @@ class BigUnsigned {
   void MultiplyBy(int other_size, const uint32_t* other_words) {
     const int original_size = size_;
     const int first_step =
-        std::min(original_size + other_size - 2, max_words - 1);
+        (std::min)(original_size + other_size - 2, max_words - 1);
     for (int step = first_step; step >= 0; --step) {
       MultiplyStep(original_size, other_words, other_size, step);
     }
@@ -286,7 +286,7 @@ class BigUnsigned {
           value = 0;
         }
       }
-      size_ = std::min(max_words, std::max(index + 1, size_));
+      size_ = (std::min)(max_words, (std::max)(index + 1, size_));
     }
   }
 
@@ -309,7 +309,7 @@ class BigUnsigned {
       } else {
         // Normally 32-bit AddWithCarry() sets size_, but since we don't call
         // it when `high` is 0, do it ourselves here.
-        size_ = std::min(max_words, std::max(index + 1, size_));
+        size_ = (std::min)(max_words, (std::max)(index + 1, size_));
       }
     }
   }
@@ -348,7 +348,7 @@ class BigUnsigned {
 // Returns -1 if lhs < rhs, 0 if lhs == rhs, and 1 if lhs > rhs.
 template <int N, int M>
 int Compare(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
-  int limit = std::max(lhs.size(), rhs.size());
+  int limit = (std::max)(lhs.size(), rhs.size());
   for (int i = limit - 1; i >= 0; --i) {
     const uint32_t lhs_word = lhs.GetWord(i);
     const uint32_t rhs_word = rhs.GetWord(i);
@@ -363,7 +363,7 @@ int Compare(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
 
 template <int N, int M>
 bool operator==(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
-  int limit = std::max(lhs.size(), rhs.size());
+  int limit = (std::max)(lhs.size(), rhs.size());
   for (int i = 0; i < limit; ++i) {
     if (lhs.GetWord(i) != rhs.GetWord(i)) {
       return false;
diff --git a/absl/strings/internal/pow10_helper.cc b/absl/strings/internal/pow10_helper.cc
new file mode 100644
index 000000000000..66be163f43fe
--- /dev/null
+++ b/absl/strings/internal/pow10_helper.cc
@@ -0,0 +1,120 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/strings/internal/pow10_helper.h"
+
+#include <cmath>
+
+namespace absl {
+namespace strings_internal {
+
+namespace {
+
+// The exact value of 1e23 falls precisely halfway between two representable
+// doubles. Furthermore, the rounding rules we prefer (break ties by rounding
+// to the nearest even) dictate in this case that the number should be rounded
+// down, but this is not completely specified for floating-point literals in
+// C++. (It just says to use the default rounding mode of the standard
+// library.) We ensure the result we want by using a number that has an
+// unambiguous correctly rounded answer.
+constexpr double k1e23 = 9999999999999999e7;
+
+constexpr double kPowersOfTen[] = {
+    0.0,    1e-323, 1e-322, 1e-321, 1e-320, 1e-319, 1e-318, 1e-317, 1e-316,
+    1e-315, 1e-314, 1e-313, 1e-312, 1e-311, 1e-310, 1e-309, 1e-308, 1e-307,
+    1e-306, 1e-305, 1e-304, 1e-303, 1e-302, 1e-301, 1e-300, 1e-299, 1e-298,
+    1e-297, 1e-296, 1e-295, 1e-294, 1e-293, 1e-292, 1e-291, 1e-290, 1e-289,
+    1e-288, 1e-287, 1e-286, 1e-285, 1e-284, 1e-283, 1e-282, 1e-281, 1e-280,
+    1e-279, 1e-278, 1e-277, 1e-276, 1e-275, 1e-274, 1e-273, 1e-272, 1e-271,
+    1e-270, 1e-269, 1e-268, 1e-267, 1e-266, 1e-265, 1e-264, 1e-263, 1e-262,
+    1e-261, 1e-260, 1e-259, 1e-258, 1e-257, 1e-256, 1e-255, 1e-254, 1e-253,
+    1e-252, 1e-251, 1e-250, 1e-249, 1e-248, 1e-247, 1e-246, 1e-245, 1e-244,
+    1e-243, 1e-242, 1e-241, 1e-240, 1e-239, 1e-238, 1e-237, 1e-236, 1e-235,
+    1e-234, 1e-233, 1e-232, 1e-231, 1e-230, 1e-229, 1e-228, 1e-227, 1e-226,
+    1e-225, 1e-224, 1e-223, 1e-222, 1e-221, 1e-220, 1e-219, 1e-218, 1e-217,
+    1e-216, 1e-215, 1e-214, 1e-213, 1e-212, 1e-211, 1e-210, 1e-209, 1e-208,
+    1e-207, 1e-206, 1e-205, 1e-204, 1e-203, 1e-202, 1e-201, 1e-200, 1e-199,
+    1e-198, 1e-197, 1e-196, 1e-195, 1e-194, 1e-193, 1e-192, 1e-191, 1e-190,
+    1e-189, 1e-188, 1e-187, 1e-186, 1e-185, 1e-184, 1e-183, 1e-182, 1e-181,
+    1e-180, 1e-179, 1e-178, 1e-177, 1e-176, 1e-175, 1e-174, 1e-173, 1e-172,
+    1e-171, 1e-170, 1e-169, 1e-168, 1e-167, 1e-166, 1e-165, 1e-164, 1e-163,
+    1e-162, 1e-161, 1e-160, 1e-159, 1e-158, 1e-157, 1e-156, 1e-155, 1e-154,
+    1e-153, 1e-152, 1e-151, 1e-150, 1e-149, 1e-148, 1e-147, 1e-146, 1e-145,
+    1e-144, 1e-143, 1e-142, 1e-141, 1e-140, 1e-139, 1e-138, 1e-137, 1e-136,
+    1e-135, 1e-134, 1e-133, 1e-132, 1e-131, 1e-130, 1e-129, 1e-128, 1e-127,
+    1e-126, 1e-125, 1e-124, 1e-123, 1e-122, 1e-121, 1e-120, 1e-119, 1e-118,
+    1e-117, 1e-116, 1e-115, 1e-114, 1e-113, 1e-112, 1e-111, 1e-110, 1e-109,
+    1e-108, 1e-107, 1e-106, 1e-105, 1e-104, 1e-103, 1e-102, 1e-101, 1e-100,
+    1e-99,  1e-98,  1e-97,  1e-96,  1e-95,  1e-94,  1e-93,  1e-92,  1e-91,
+    1e-90,  1e-89,  1e-88,  1e-87,  1e-86,  1e-85,  1e-84,  1e-83,  1e-82,
+    1e-81,  1e-80,  1e-79,  1e-78,  1e-77,  1e-76,  1e-75,  1e-74,  1e-73,
+    1e-72,  1e-71,  1e-70,  1e-69,  1e-68,  1e-67,  1e-66,  1e-65,  1e-64,
+    1e-63,  1e-62,  1e-61,  1e-60,  1e-59,  1e-58,  1e-57,  1e-56,  1e-55,
+    1e-54,  1e-53,  1e-52,  1e-51,  1e-50,  1e-49,  1e-48,  1e-47,  1e-46,
+    1e-45,  1e-44,  1e-43,  1e-42,  1e-41,  1e-40,  1e-39,  1e-38,  1e-37,
+    1e-36,  1e-35,  1e-34,  1e-33,  1e-32,  1e-31,  1e-30,  1e-29,  1e-28,
+    1e-27,  1e-26,  1e-25,  1e-24,  1e-23,  1e-22,  1e-21,  1e-20,  1e-19,
+    1e-18,  1e-17,  1e-16,  1e-15,  1e-14,  1e-13,  1e-12,  1e-11,  1e-10,
+    1e-9,   1e-8,   1e-7,   1e-6,   1e-5,   1e-4,   1e-3,   1e-2,   1e-1,
+    1e+0,   1e+1,   1e+2,   1e+3,   1e+4,   1e+5,   1e+6,   1e+7,   1e+8,
+    1e+9,   1e+10,  1e+11,  1e+12,  1e+13,  1e+14,  1e+15,  1e+16,  1e+17,
+    1e+18,  1e+19,  1e+20,  1e+21,  1e+22,  k1e23,  1e+24,  1e+25,  1e+26,
+    1e+27,  1e+28,  1e+29,  1e+30,  1e+31,  1e+32,  1e+33,  1e+34,  1e+35,
+    1e+36,  1e+37,  1e+38,  1e+39,  1e+40,  1e+41,  1e+42,  1e+43,  1e+44,
+    1e+45,  1e+46,  1e+47,  1e+48,  1e+49,  1e+50,  1e+51,  1e+52,  1e+53,
+    1e+54,  1e+55,  1e+56,  1e+57,  1e+58,  1e+59,  1e+60,  1e+61,  1e+62,
+    1e+63,  1e+64,  1e+65,  1e+66,  1e+67,  1e+68,  1e+69,  1e+70,  1e+71,
+    1e+72,  1e+73,  1e+74,  1e+75,  1e+76,  1e+77,  1e+78,  1e+79,  1e+80,
+    1e+81,  1e+82,  1e+83,  1e+84,  1e+85,  1e+86,  1e+87,  1e+88,  1e+89,
+    1e+90,  1e+91,  1e+92,  1e+93,  1e+94,  1e+95,  1e+96,  1e+97,  1e+98,
+    1e+99,  1e+100, 1e+101, 1e+102, 1e+103, 1e+104, 1e+105, 1e+106, 1e+107,
+    1e+108, 1e+109, 1e+110, 1e+111, 1e+112, 1e+113, 1e+114, 1e+115, 1e+116,
+    1e+117, 1e+118, 1e+119, 1e+120, 1e+121, 1e+122, 1e+123, 1e+124, 1e+125,
+    1e+126, 1e+127, 1e+128, 1e+129, 1e+130, 1e+131, 1e+132, 1e+133, 1e+134,
+    1e+135, 1e+136, 1e+137, 1e+138, 1e+139, 1e+140, 1e+141, 1e+142, 1e+143,
+    1e+144, 1e+145, 1e+146, 1e+147, 1e+148, 1e+149, 1e+150, 1e+151, 1e+152,
+    1e+153, 1e+154, 1e+155, 1e+156, 1e+157, 1e+158, 1e+159, 1e+160, 1e+161,
+    1e+162, 1e+163, 1e+164, 1e+165, 1e+166, 1e+167, 1e+168, 1e+169, 1e+170,
+    1e+171, 1e+172, 1e+173, 1e+174, 1e+175, 1e+176, 1e+177, 1e+178, 1e+179,
+    1e+180, 1e+181, 1e+182, 1e+183, 1e+184, 1e+185, 1e+186, 1e+187, 1e+188,
+    1e+189, 1e+190, 1e+191, 1e+192, 1e+193, 1e+194, 1e+195, 1e+196, 1e+197,
+    1e+198, 1e+199, 1e+200, 1e+201, 1e+202, 1e+203, 1e+204, 1e+205, 1e+206,
+    1e+207, 1e+208, 1e+209, 1e+210, 1e+211, 1e+212, 1e+213, 1e+214, 1e+215,
+    1e+216, 1e+217, 1e+218, 1e+219, 1e+220, 1e+221, 1e+222, 1e+223, 1e+224,
+    1e+225, 1e+226, 1e+227, 1e+228, 1e+229, 1e+230, 1e+231, 1e+232, 1e+233,
+    1e+234, 1e+235, 1e+236, 1e+237, 1e+238, 1e+239, 1e+240, 1e+241, 1e+242,
+    1e+243, 1e+244, 1e+245, 1e+246, 1e+247, 1e+248, 1e+249, 1e+250, 1e+251,
+    1e+252, 1e+253, 1e+254, 1e+255, 1e+256, 1e+257, 1e+258, 1e+259, 1e+260,
+    1e+261, 1e+262, 1e+263, 1e+264, 1e+265, 1e+266, 1e+267, 1e+268, 1e+269,
+    1e+270, 1e+271, 1e+272, 1e+273, 1e+274, 1e+275, 1e+276, 1e+277, 1e+278,
+    1e+279, 1e+280, 1e+281, 1e+282, 1e+283, 1e+284, 1e+285, 1e+286, 1e+287,
+    1e+288, 1e+289, 1e+290, 1e+291, 1e+292, 1e+293, 1e+294, 1e+295, 1e+296,
+    1e+297, 1e+298, 1e+299, 1e+300, 1e+301, 1e+302, 1e+303, 1e+304, 1e+305,
+    1e+306, 1e+307, 1e+308,
+};
+
+}  // namespace
+
+double Pow10(int exp) {
+  if (exp < -324) {
+    return 0.0;
+  } else if (exp > 308) {
+    return INFINITY;
+  } else {
+    return kPowersOfTen[exp + 324];
+  }
+}
+
+}  // namespace strings_internal
+}  // namespace absl
diff --git a/absl/strings/internal/pow10_helper.h b/absl/strings/internal/pow10_helper.h
new file mode 100644
index 000000000000..fe7e735a30bb
--- /dev/null
+++ b/absl/strings/internal/pow10_helper.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// This test helper library contains a table of powers of 10, to guarantee
+// precise values are computed across the full range of doubles. We can't rely
+// on the pow() function, because not all standard libraries ship a version
+// that is precise.
+#ifndef ABSL_STRINGS_INTERNAL_POW10_HELPER_H_
+#define ABSL_STRINGS_INTERNAL_POW10_HELPER_H_
+
+#include <vector>
+
+namespace absl {
+namespace strings_internal {
+
+// Computes the precise value of 10^exp. (I.e. the nearest representable
+// double to the exact value, rounding to nearest-even in the (single) case of
+// being exactly halfway between.)
+double Pow10(int exp);
+
+}  // namespace strings_internal
+}  // namespace absl
+
+#endif  // ABSL_STRINGS_INTERNAL_POW10_HELPER_H_
diff --git a/absl/strings/internal/pow10_helper_test.cc b/absl/strings/internal/pow10_helper_test.cc
new file mode 100644
index 000000000000..9a13d5240da7
--- /dev/null
+++ b/absl/strings/internal/pow10_helper_test.cc
@@ -0,0 +1,120 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/strings/internal/pow10_helper.h"
+
+#include <cmath>
+
+#include "gtest/gtest.h"
+#include "absl/strings/str_format.h"
+
+namespace absl {
+namespace strings_internal {
+
+namespace {
+
+struct TestCase {
+  int power;           // Testing Pow10(power)
+  uint64_t significand;  // Raw bits of the expected value
+  int radix;           // significand is adjusted by 2^radix
+};
+
+TEST(Pow10HelperTest, Works) {
+  // The logic in pow10_helper.cc is so simple that theoretically we don't even
+  // need a test. However, we're paranoid and believe that there may be
+  // compilers that don't round floating-point literals correctly, even though
+  // it is specified by the standard. We check various edge cases, just to be
+  // sure.
+  constexpr TestCase kTestCases[] = {
+      // Subnormals
+      {-323, 0x2, -1074},
+      {-322, 0x14, -1074},
+      {-321, 0xca, -1074},
+      {-320, 0x7e8, -1074},
+      {-319, 0x4f10, -1074},
+      {-318, 0x316a2, -1074},
+      {-317, 0x1ee257, -1074},
+      {-316, 0x134d761, -1074},
+      {-315, 0xc1069cd, -1074},
+      {-314, 0x78a42205, -1074},
+      {-313, 0x4b6695433, -1074},
+      {-312, 0x2f201d49fb, -1074},
+      {-311, 0x1d74124e3d1, -1074},
+      {-310, 0x12688b70e62b, -1074},
+      {-309, 0xb8157268fdaf, -1074},
+      {-308, 0x730d67819e8d2, -1074},
+      // Values that are very close to rounding the other way.
+      // Comment shows difference of significand from the true value.
+      {-307, 0x11fa182c40c60d, -1072},  // -.4588
+      {-290, 0x18f2b061aea072, -1016},  //  .4854
+      {-276, 0x11BA03F5B21000, -969},   //  .4709
+      {-259, 0x1899C2F6732210, -913},   //  .4830
+      {-252, 0x1D53844EE47DD1, -890},   // -.4743
+      {-227, 0x1E5297287C2F45, -807},   // -.4708
+      {-198, 0x1322E220A5B17E, -710},   // -.4714
+      {-195, 0x12B010D3E1CF56, -700},   //  .4928
+      {-192, 0x123FF06EEA847A, -690},   //  .4968
+      {-163, 0x1708D0F84D3DE7, -594},   // -.4977
+      {-145, 0x13FAAC3E3FA1F3, -534},   // -.4785
+      {-111, 0x133D4032C2C7F5, -421},   //  .4774
+      {-106, 0x1D5B561574765B, -405},   // -.4869
+      {-104, 0x16EF5B40C2FC77, -398},   // -.4741
+      {-88, 0x197683DF2F268D, -345},    // -.4738
+      {-86, 0x13E497065CD61F, -338},    //  .4736
+      {-76, 0x17288E1271F513, -305},    // -.4761
+      {-63, 0x1A53FC9631D10D, -262},    //  .4929
+      {-30, 0x14484BFEEBC2A0, -152},    //  .4758
+      {-21, 0x12E3B40A0E9B4F, -122},    // -.4916
+      {-5, 0x14F8B588E368F1, -69},      //  .4829
+      {23, 0x152D02C7E14AF6, 24},       // -.5000 (exactly, round-to-even)
+      {29, 0x1431E0FAE6D721, 44},       // -.4870
+      {34, 0x1ED09BEAD87C03, 60},       // -.4721
+      {70, 0x172EBAD6DDC73D, 180},      //  .4733
+      {105, 0x1BE7ABD3781ECA, 296},     // -.4850
+      {126, 0x17A2ECC414A03F, 366},     // -.4999
+      {130, 0x1CDA62055B2D9E, 379},     //  .4855
+      {165, 0x115D847AD00087, 496},     // -.4913
+      {172, 0x14B378469B6732, 519},     //  .4818
+      {187, 0x1262DFEEBBB0F9, 569},     // -.4805
+      {210, 0x18557F31326BBB, 645},     // -.4992
+      {212, 0x1302CB5E6F642A, 652},     // -.4838
+      {215, 0x1290BA9A38C7D1, 662},     // -.4881
+      {236, 0x1F736F9B3494E9, 731},     //  .4707
+      {244, 0x176EC98994F489, 758},     //  .4924
+      {250, 0x1658E3AB795204, 778},     // -.4963
+      {252, 0x117571DDF6C814, 785},     //  .4873
+      {254, 0x1B4781EAD1989E, 791},     // -.4887
+      {260, 0x1A03FDE214CAF1, 811},     //  .4784
+      {284, 0x1585041B2C477F, 891},     //  .4798
+      {304, 0x1D2A1BE4048F90, 957},     // -.4987
+      // Out-of-range values
+      {-324, 0x0, 0},
+      {-325, 0x0, 0},
+      {-326, 0x0, 0},
+      {309, 1, 2000},
+      {310, 1, 2000},
+      {311, 1, 2000},
+  };
+  for (const TestCase& test_case : kTestCases) {
+    EXPECT_EQ(Pow10(test_case.power),
+              std::ldexp(test_case.significand, test_case.radix))
+        << absl::StrFormat("Failure for Pow10(%d): %a vs %a", test_case.power,
+                           Pow10(test_case.power),
+                           std::ldexp(test_case.significand, test_case.radix));
+  }
+}
+
+}  // namespace
+}  // namespace strings_internal
+}  // namespace absl
diff --git a/absl/strings/internal/resize_uninitialized.h b/absl/strings/internal/resize_uninitialized.h
index a94e0547b50f..c2da0da9e4a2 100644
--- a/absl/strings/internal/resize_uninitialized.h
+++ b/absl/strings/internal/resize_uninitialized.h
@@ -18,6 +18,7 @@
 #define ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_
 
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/base/port.h"
@@ -27,22 +28,24 @@ namespace absl {
 namespace strings_internal {
 
 // Is a subclass of true_type or false_type, depending on whether or not
-// T has a resize_uninitialized member.
-template <typename T, typename = void>
-struct HasResizeUninitialized : std::false_type {};
-template <typename T>
-struct HasResizeUninitialized<
-    T, absl::void_t<decltype(std::declval<T>().resize_uninitialized(237))>>
-    : std::true_type {};
+// T has a __resize_default_init member.
+template <typename string_type, typename = void>
+struct ResizeUninitializedTraits {
+  using HasMember = std::false_type;
+  static void Resize(string_type* s, size_t new_size) { s->resize(new_size); }
+};
 
+// __resize_default_init is provided by libc++ >= 8.0 and by Google's internal
+// ::string implementation.
 template <typename string_type>
-void ResizeUninit(string_type* s, size_t new_size, std::true_type) {
-  s->resize_uninitialized(new_size);
-}
-template <typename string_type>
-void ResizeUninit(string_type* s, size_t new_size, std::false_type) {
-  s->resize(new_size);
-}
+struct ResizeUninitializedTraits<
+    string_type, absl::void_t<decltype(std::declval<string_type&>()
+                                           .__resize_default_init(237))> > {
+  using HasMember = std::true_type;
+  static void Resize(string_type* s, size_t new_size) {
+    s->__resize_default_init(new_size);
+  }
+};
 
 // Returns true if the string implementation supports a resize where
 // the new characters added to the string are left untouched.
@@ -51,7 +54,7 @@ void ResizeUninit(string_type* s, size_t new_size, std::false_type) {
 // the previous function.)
 template <typename string_type>
 inline constexpr bool STLStringSupportsNontrashingResize(string_type*) {
-  return HasResizeUninitialized<string_type>();
+  return ResizeUninitializedTraits<string_type>::HasMember::value;
 }
 
 // Like str->resize(new_size), except any new characters added to "*str" as a
@@ -60,7 +63,7 @@ inline constexpr bool STLStringSupportsNontrashingResize(string_type*) {
 // store of the string with known data. Uses a Google extension to ::string.
 template <typename string_type, typename = void>
 inline void STLStringResizeUninitialized(string_type* s, size_t new_size) {
-  ResizeUninit(s, new_size, HasResizeUninitialized<string_type>());
+  ResizeUninitializedTraits<string_type>::Resize(s, new_size);
 }
 
 }  // namespace strings_internal
diff --git a/absl/strings/internal/resize_uninitialized_test.cc b/absl/strings/internal/resize_uninitialized_test.cc
index ad282efcd9bb..43aece8db103 100644
--- a/absl/strings/internal/resize_uninitialized_test.cc
+++ b/absl/strings/internal/resize_uninitialized_test.cc
@@ -24,44 +24,44 @@ struct resizable_string {
   void resize(size_t) { resize_call_count += 1; }
 };
 
-int resize_uninitialized_call_count = 0;
+int resize_default_init_call_count = 0;
 
-struct resize_uninitializable_string {
+struct resize_default_init_string {
   void resize(size_t) { resize_call_count += 1; }
-  void resize_uninitialized(size_t) { resize_uninitialized_call_count += 1; }
+  void __resize_default_init(size_t) { resize_default_init_call_count += 1; }
 };
 
 TEST(ResizeUninit, WithAndWithout) {
   resize_call_count = 0;
-  resize_uninitialized_call_count = 0;
+  resize_default_init_call_count = 0;
   {
     resizable_string rs;
 
     EXPECT_EQ(resize_call_count, 0);
-    EXPECT_EQ(resize_uninitialized_call_count, 0);
+    EXPECT_EQ(resize_default_init_call_count, 0);
     EXPECT_FALSE(
         absl::strings_internal::STLStringSupportsNontrashingResize(&rs));
     EXPECT_EQ(resize_call_count, 0);
-    EXPECT_EQ(resize_uninitialized_call_count, 0);
+    EXPECT_EQ(resize_default_init_call_count, 0);
     absl::strings_internal::STLStringResizeUninitialized(&rs, 237);
     EXPECT_EQ(resize_call_count, 1);
-    EXPECT_EQ(resize_uninitialized_call_count, 0);
+    EXPECT_EQ(resize_default_init_call_count, 0);
   }
 
   resize_call_count = 0;
-  resize_uninitialized_call_count = 0;
+  resize_default_init_call_count = 0;
   {
-    resize_uninitializable_string rus;
+    resize_default_init_string rus;
 
     EXPECT_EQ(resize_call_count, 0);
-    EXPECT_EQ(resize_uninitialized_call_count, 0);
+    EXPECT_EQ(resize_default_init_call_count, 0);
     EXPECT_TRUE(
         absl::strings_internal::STLStringSupportsNontrashingResize(&rus));
     EXPECT_EQ(resize_call_count, 0);
-    EXPECT_EQ(resize_uninitialized_call_count, 0);
+    EXPECT_EQ(resize_default_init_call_count, 0);
     absl::strings_internal::STLStringResizeUninitialized(&rus, 237);
     EXPECT_EQ(resize_call_count, 0);
-    EXPECT_EQ(resize_uninitialized_call_count, 1);
+    EXPECT_EQ(resize_default_init_call_count, 1);
   }
 }
 
diff --git a/absl/strings/internal/str_format/arg.h b/absl/strings/internal/str_format/arg.h
index ec9e6f0063b1..ebd40adcd987 100644
--- a/absl/strings/internal/str_format/arg.h
+++ b/absl/strings/internal/str_format/arg.h
@@ -80,7 +80,7 @@ ConvertResult<Conv::s> FormatConvertImpl(const AbslCord& value,
 
   int precision = conv.precision();
   if (precision >= 0)
-    to_write = std::min(to_write, static_cast<size_t>(precision));
+    to_write = (std::min)(to_write, static_cast<size_t>(precision));
 
   space_remaining = Excess(to_write, space_remaining);
 
diff --git a/absl/strings/match.cc b/absl/strings/match.cc
index 3d10c57784eb..a2e9064c0760 100644
--- a/absl/strings/match.cc
+++ b/absl/strings/match.cc
@@ -18,15 +18,6 @@
 
 namespace absl {
 
-namespace {
-bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
-  return (piece1.size() == piece2.size() &&
-          0 == strings_internal::memcasecmp(piece1.data(), piece2.data(),
-                                            piece1.size()));
-  // memcasecmp uses ascii_tolower().
-}
-}  // namespace
-
 bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2) {
   return (piece1.size() == piece2.size() &&
           0 == absl::strings_internal::memcasecmp(piece1.data(), piece2.data(),
@@ -36,12 +27,12 @@ bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2) {
 
 bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix) {
   return (text.size() >= prefix.size()) &&
-         CaseEqual(text.substr(0, prefix.size()), prefix);
+         EqualsIgnoreCase(text.substr(0, prefix.size()), prefix);
 }
 
 bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix) {
   return (text.size() >= suffix.size()) &&
-         CaseEqual(text.substr(text.size() - suffix.size()), suffix);
+         EqualsIgnoreCase(text.substr(text.size() - suffix.size()), suffix);
 }
 
 }  // namespace absl
diff --git a/absl/strings/numbers_test.cc b/absl/strings/numbers_test.cc
index 36fc0d64fd51..099326c270a3 100644
--- a/absl/strings/numbers_test.cc
+++ b/absl/strings/numbers_test.cc
@@ -39,6 +39,7 @@
 #include "absl/strings/str_cat.h"
 
 #include "absl/strings/internal/numbers_test_common.h"
+#include "absl/strings/internal/pow10_helper.h"
 
 namespace {
 
@@ -871,7 +872,7 @@ TEST_F(SimpleDtoaTest, ExhaustiveDoubleToSixDigits) {
     }
 
     for (int exponent = -324; exponent <= 308; ++exponent) {
-      double powten = pow(10.0, exponent);
+      double powten = absl::strings_internal::Pow10(exponent);
       if (powten == 0) powten = 5e-324;
       if (kFloatNumCases >= 1e9) {
         // The exhaustive test takes a very long time, so log progress.
diff --git a/absl/strings/string_view.h b/absl/strings/string_view.h
index 2cc10f522e13..8cd4fa24e2bc 100644
--- a/absl/strings/string_view.h
+++ b/absl/strings/string_view.h
@@ -355,7 +355,7 @@ class string_view {
   string_view substr(size_type pos, size_type n = npos) const {
     if (ABSL_PREDICT_FALSE(pos > length_))
       base_internal::ThrowStdOutOfRange("absl::string_view::substr");
-    n = std::min(n, length_ - pos);
+    n = (std::min)(n, length_ - pos);
     return string_view(ptr_ + pos, n);
   }
 
@@ -368,7 +368,7 @@ class string_view {
   // on the respective sizes of the two `string_view`s to determine which is
   // smaller, equal, or greater.
   int compare(string_view x) const noexcept {
-    auto min_length = std::min(length_, x.length_);
+    auto min_length = (std::min)(length_, x.length_);
     if (min_length > 0) {
       int r = memcmp(ptr_, x.ptr_, min_length);
       if (r < 0) return -1;
@@ -517,7 +517,7 @@ inline bool operator!=(string_view x, string_view y) noexcept {
 }
 
 inline bool operator<(string_view x, string_view y) noexcept {
-  auto min_size = std::min(x.size(), y.size());
+  auto min_size = (std::min)(x.size(), y.size());
   const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
   return (r < 0) || (r == 0 && x.size() < y.size());
 }
@@ -547,7 +547,7 @@ namespace absl {
 // Provided because std::string_view::substr throws if `pos > size()`
 inline string_view ClippedSubstr(string_view s, size_t pos,
                                  size_t n = string_view::npos) {
-  pos = std::min(pos, static_cast<size_t>(s.size()));
+  pos = (std::min)(pos, static_cast<size_t>(s.size()));
   return s.substr(pos, n);
 }
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