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-rw-r--r--absl/base/policy_checks.h28
1 files changed, 25 insertions, 3 deletions
diff --git a/absl/base/policy_checks.h b/absl/base/policy_checks.h
index 51b662f4dd97..d634dac68dcf 100644
--- a/absl/base/policy_checks.h
+++ b/absl/base/policy_checks.h
@@ -47,14 +47,14 @@
 // We support MSVC++ 14.0 update 2 and later.
 // This minimum will go up.
 #if defined(_MSC_FULL_VER) && _MSC_FULL_VER < 190023918 && !defined(__clang__)
-#error "This package requires Visual Studio 2015 Update 2 or higher"
+#error "This package requires Visual Studio 2015 Update 2 or higher."
 #endif
 
 // We support gcc 4.7 and later.
 // This minimum will go up.
 #if defined(__GNUC__) && !defined(__clang__)
 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
-#error "This package requires gcc 4.7 or higher"
+#error "This package requires gcc 4.7 or higher."
 #endif
 #endif
 
@@ -62,7 +62,7 @@
 // This corresponds to Apple Xcode version 4.5.
 // This minimum will go up.
 #if defined(__apple_build_version__) && __apple_build_version__ < 4211165
-#error "This package requires __apple_build_version__ of 4211165 or higher"
+#error "This package requires __apple_build_version__ of 4211165 or higher."
 #endif
 
 // -----------------------------------------------------------------------------
@@ -96,4 +96,26 @@
 #error "STLPort is not supported."
 #endif
 
+// -----------------------------------------------------------------------------
+// `char` Size Check
+// -----------------------------------------------------------------------------
+
+// Abseil currently assumes CHAR_BIT == 8. If you would like to use Abseil on a
+// platform where this is not the case, please provide us with the details about
+// your platform so we can consider relaxing this requirement.
+#if CHAR_BIT != 8
+#error "Abseil assumes CHAR_BIT == 8."
+#endif
+
+// -----------------------------------------------------------------------------
+// `int` Size Check
+// -----------------------------------------------------------------------------
+
+// Abseil currently assumes that an int is 4 bytes. If you would like to use
+// Abseil on a platform where this is not the case, please provide us with the
+// details about your platform so we can consider relaxing this requirement.
+#if INT_MAX < 2147483647
+#error "Abseil assumes that int is at least 4 bytes. "
+#endif
+
 #endif  // ABSL_BASE_POLICY_CHECKS_H_