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Fixes the comment about GTEST_ATTRIBUTE_UNUSED_.

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zhanyong.wan 2009-04-03 00:11:11 +00:00
parent 5f7c33d39c
commit 0da92aaf7f
1 changed files with 6 additions and 3 deletions
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9
include/gtest/internal/gtest-port.h
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@ -96,8 +96,8 @@
// //
// Macros for basic C++ coding: // Macros for basic C++ coding:
// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. // GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances don't have to // GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a
// be used. // variable don't have to be used.
// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. // GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. // GTEST_MUST_USE_RESULT_ - declares that a function's result must be used.
// //
@ -439,7 +439,7 @@
#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: // NOLINT #define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: // NOLINT
#endif #endif
// Use this annotation at the end of a struct / class definition to // Use this annotation at the end of a struct/class definition to
// prevent the compiler from optimizing away instances that are never // prevent the compiler from optimizing away instances that are never
// used. This is useful when all interesting logic happens inside the // used. This is useful when all interesting logic happens inside the
// c'tor and / or d'tor. Example: // c'tor and / or d'tor. Example:
@ -447,6 +447,9 @@
// struct Foo { // struct Foo {
// Foo() { ... } // Foo() { ... }
// } GTEST_ATTRIBUTE_UNUSED_; // } GTEST_ATTRIBUTE_UNUSED_;
//
// Also use it after a variable or parameter declaration to tell the
// compiler the variable/parameter does not have to be used.
#if defined(__GNUC__) && !defined(COMPILER_ICC) #if defined(__GNUC__) && !defined(COMPILER_ICC)
#define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) #define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
#else #else