llvm-project/clang/test/Sema/inline-redef.c
Mehdi Amini e0ac46e69d Revert "Remove rdar links; NFC"
This reverts commit d618f1c3b12effd0c2bdb7d02108d3551f389d3d.
This commit wasn't reviewed ahead of time and significant concerns were
raised immediately after it landed. According to our developer policy
this warrants immediate revert of the commit.

https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy

Differential Revision: https://reviews.llvm.org/D155509
2023-07-17 18:08:04 -07:00

25 lines
992 B
C

// RUN: %clang_cc1 -std=gnu89 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify %s
#if __STDC_VERSION__ >= 199901
#define GNU_INLINE __attribute((__gnu_inline__))
#else
#define GNU_INLINE
#endif
// PR5253
// rdar://9559708 (same extension in C99 mode)
// GNU Extension: check that we can redefine an extern inline function
GNU_INLINE extern inline int f(int a) {return a;}
int f(int b) {return b;} // expected-note{{previous definition is here}}
// And now check that we can't redefine a normal function
int f(int c) {return c;} // expected-error{{redefinition of 'f'}}
// Check that we can redefine an extern inline function as a static function
GNU_INLINE extern inline int g(int a) {return a;}
static int g(int b) {return b;}
// Check that we ensure the types of the two definitions are the same
GNU_INLINE extern inline int h(int a) {return a;} // expected-note{{previous definition is here}}
int h(short b) {return b;} // expected-error{{conflicting types for 'h'}}