| Eli Friedman | eca3ed7 | 2011-06-13 23:56:42 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -std=gnu89 -fsyntax-only -verify %s |
| 2 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
| 3 | |
| 4 | #if __STDC_VERSION__ >= 199901 |
| 5 | #define GNU_INLINE __attribute((__gnu_inline__)) |
| 6 | #else |
| 7 | #define GNU_INLINE |
| 8 | #endif |
| 9 | |
| 10 | // PR5253 |
| 11 | // rdar://9559708 (same extension in C99 mode) |
| 12 | // GNU Extension: check that we can redefine an extern inline function |
| 13 | GNU_INLINE extern inline int f(int a) {return a;} |
| 14 | int f(int b) {return b;} // expected-note{{previous definition is here}} |
| 15 | // And now check that we can't redefine a normal function |
| 16 | int f(int c) {return c;} // expected-error{{redefinition of 'f'}} |
| 17 | |
| 18 | // Check that we can redefine an extern inline function as a static function |
| 19 | GNU_INLINE extern inline int g(int a) {return a;} |
| 20 | static int g(int b) {return b;} |
| 21 | |
| 22 | // Check that we ensure the types of the two definitions are the same |
| 23 | GNU_INLINE extern inline int h(int a) {return a;} // expected-note{{previous definition is here}} |
| 24 | int h(short b) {return b;} // expected-error{{conflicting types for 'h'}} |