diff options
| author |  Abseil Team <absl-team@google.com> | 2018-01-12 07:45:05 -0800 |
|---|---|---|
| committer |  Derek Mauro <dmauro@google.com> | 2018-01-12 10:52:03 -0500 |
| commit | be40fdf1a86f4956d2f8125a7b6bd6d34e133c2d (patch) | |
| tree | c6b5e1fa9df5114a350afdcd7334ed7ac4d44b77 /absl/base/attributes.h | |
| parent | c742b72354a84958b6a061755249822eeef87d06 (diff) | |
Changes imported from Abseil "staging" branch:
- c01cbbc23470f60e54aa28f88faa49df17d26c9c Add constexpr function for max uint128 to replace global ... by Alex Strelnikov <strel@google.com>
- 07491549940e51fb6a0c8aad0ce101cb2830ee8e fix __GNUC__ typo in ABSL_ATTRIBUTE_RETURNS_NONNULL test by Abseil Team <absl-team@google.com>
- 1bc29bafa53c387b0e097856cffb2fb9ce56c331 Remove redundant uint128 function cast expressions. by Alex Strelnikov <strel@google.com>
- e3dddbd7be9e85e1bac77648af35ddccdba4500e Add ABSL_ATTRIBUTE_RETURNS_NONNULL macro. by Chris Kennelly <ckennelly@google.com>
GitOrigin-RevId: c01cbbc23470f60e54aa28f88faa49df17d26c9c
Change-Id: I7a5f608f58fb53bf013cdf56018f5b39842427fc
Diffstat (limited to 'absl/base/attributes.h')
| -rw-r--r-- | absl/base/attributes.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/absl/base/attributes.h b/absl/base/attributes.h index 02bb030f..4e1fc8b5 100644 --- a/absl/base/attributes.h +++ b/absl/base/attributes.h @@ -281,6 +281,18 @@ #define ABSL_ATTRIBUTE_NO_SANITIZE_CFI #endif +// ABSL_ATTRIBUTE_RETURNS_NONNULL +// +// Tells the compiler that a particular function never returns a null pointer. +#if ABSL_HAVE_ATTRIBUTE(returns_nonnull) || \ + (defined(__GNUC__) && \ + (__GNUC__ > 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) && \ + !defined(__clang__)) +#define ABSL_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull)) +#else +#define ABSL_ATTRIBUTE_RETURNS_NONNULL +#endif + // ABSL_HAVE_ATTRIBUTE_SECTION // // Indicates whether labeled sections are supported. Labeled sections are not |