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| author | Kamlesh Kumar <kamleshbhalui@gmail.com> | 2019-12-05 16:49:00 +0100 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2022-05-24 21:21:05 -0700 |
| commit | 2fa202fdd10de62ca436d567f12ccc3e40f29476 (patch) | |
| tree | 0c0ab41d9d37cb1237c049da748de31313dfefbb | |
| parent | 20f6c924222f2677d9a53fa3b6c1ea76a1341840 (diff) | |
| download | glibc-2fa202fdd10de62ca436d567f12ccc3e40f29476.tar.gz | |
<string.h>: Define __CORRECT_ISO_CPP_STRING_H_PROTO for Clang [BZ #25232]
Without the asm redirects, strchr et al. are not const-correct.
libc++ has a wrapper header that works with and without
__CORRECT_ISO_CPP_STRING_H_PROTO (using a Clang extension). But when
Clang is used with libstdc++ or just C headers, the overloaded functions
with the correct types are not declared.
This change does not impact current GCC (with libstdc++ or libc++).
(cherry picked from commit 953ceff17a4a15b10cfdd5edc3c8cae4884c8ec3)
| -rw-r--r-- | string/string.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/string/string.h b/string/string.h index 150cfd8b13..22cd0fa08f 100644 --- a/string/string.h +++ b/string/string.h @@ -33,7 +33,8 @@ __BEGIN_DECLS #include <stddef.h> /* Tell the caller that we provide correct C++ prototypes. */ -#if defined __cplusplus && __GNUC_PREREQ (4, 4) +#if defined __cplusplus && (__GNUC_PREREQ (4, 4) \ + || __glibc_clang_prereq (3, 5)) # define __CORRECT_ISO_CPP_STRING_H_PROTO #endif |