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authorAbseil Team <absl-team@google.com>2017-11-08T17·43-0800
committerkatzdm <katzdm@google.com>2017-11-08T18·52-0500
commit9850abf25d8efcdc1ff752f1eeef13b640c4ead4 (patch)
tree7600a3c80913c885c59d5ca4617edd36ab100af7 /absl/numeric/int128.h
parentbadd8bd27f216aee9d9f026e697e7281b5932fee (diff)
Changes imported from Abseil "staging" branch:
  - 55a89fda61ddf8aa76d0a3b6bc44bf6b5b6eadfc Internal cleanup by Abseil Team <absl-team@google.com>
  - b7646f979ee40c5716833692f2eb24b8058cf4c8 Internal cleanup by Gennadiy Rozental <rogeeff@google.com>
  - 12a4051b0ea91c6a6211f738fa24e1bc7064c09a Merging changes from https://github.com/abseil/abseil-cpp... by Daniel Katz <katzdm@google.com>
  - 2e259588d62118a70837a3d8408cb6c763f48420 Replace EXPECT_TRUE(StrContains(...)) with an assert exam... by Abseil Team <absl-team@google.com>
  - 8f7d251b3486f2b03dc712ad0822b9dc87a7964b Make Uint128(High|Low)64 constexpr. by Alex Strelnikov <strel@google.com>
  - 955fd38a23896e003105defc0ef221a2c10d392e Internal change by Jon Cohen <cohenjon@google.com>

GitOrigin-RevId: 55a89fda61ddf8aa76d0a3b6bc44bf6b5b6eadfc
Change-Id: Ia062fe8a0559aa3ace3736d2a53f6da13af40b2c
Diffstat (limited to 'absl/numeric/int128.h')
-rw-r--r--absl/numeric/int128.h12
1 files changed, 4 insertions, 8 deletions
diff --git a/absl/numeric/int128.h b/absl/numeric/int128.h
index a2ca29a03ad9..8eca1e926821 100644
--- a/absl/numeric/int128.h
+++ b/absl/numeric/int128.h
@@ -159,12 +159,12 @@ class alignas(16) uint128 {
   // Uint128Low64()
   //
   // Returns the lower 64-bit value of a `uint128` value.
-  friend uint64_t Uint128Low64(const uint128& v);
+  friend constexpr uint64_t Uint128Low64(const uint128& v);
 
   // Uint128High64()
   //
   // Returns the higher 64-bit value of a `uint128` value.
-  friend uint64_t Uint128High64(const uint128& v);
+  friend constexpr uint64_t Uint128High64(const uint128& v);
 
   // MakeUInt128()
   //
@@ -202,10 +202,6 @@ extern std::ostream& operator<<(std::ostream& o, const uint128& b);
 
 // TODO(strel) add operator>>(std::istream&, uint128&)
 
-// Methods to access low and high pieces of 128-bit value.
-uint64_t Uint128Low64(const uint128& v);
-uint64_t Uint128High64(const uint128& v);
-
 // TODO(absl-team): Implement signed 128-bit type
 
 // --------------------------------------------------------------------------
@@ -283,9 +279,9 @@ inline uint128 operator%(const uint128& lhs, const uint128& rhs) {
   return uint128(lhs) %= rhs;
 }
 
-inline uint64_t Uint128Low64(const uint128& v) { return v.lo_; }
+constexpr uint64_t Uint128Low64(const uint128& v) { return v.lo_; }
 
-inline uint64_t Uint128High64(const uint128& v) { return v.hi_; }
+constexpr uint64_t Uint128High64(const uint128& v) { return v.hi_; }
 
 // Constructors from integer types.