| // 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'}} |
