| /* { dg-do run } */ | |
| /* Test of obscure case in token pasting in the preprocessor. | |
| I can't think of any way to make this problem provoke a syntax error. | |
| Based on a bug report by Manfred Hollstein. */ | |
| #include <string.h> | |
| #define SP1(x, y) SP2(x, y) | |
| #define SP2(x, y) SP3(x##y) | |
| #define SP3(x) #x | |
| #define MZ -0 | |
| int | |
| main(void) | |
| { | |
| char *x = SP1(0,MZ); /* { dg-warning "valid preprocessing token" "" } */ | |
| char *y = "0-0"; /* should be the expansion of SP1(0,MZ) */ | |
| if(strcmp(x, y)) | |
| return 1; | |
| else | |
| return 0; | |
| } |