This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#define DEFER_MERGE(a, b) a##b | |
#define DEFER_VARNAME(a) DEFER_MERGE(defer_scopevar_, a) | |
#define DEFER_FUNCNAME(a) DEFER_MERGE(defer_scopefunc_, a) | |
#define DEFER(BLOCK) \ | |
void DEFER_FUNCNAME(__LINE__)(__attribute__((unused)) int *a) { BLOCK; } \ | |
__attribute__((cleanup(DEFER_FUNCNAME(__LINE__)))) int DEFER_VARNAME(__LINE__) | |
// Usage: | |
/* | |
void dosomething() |