Created
May 27, 2018 19:09
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Defer cleanup for C (gcc and llvm)
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| #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__)(int *a) BLOCK; __attribute__((cleanup(DEFER_FUNCNAME(__LINE__)))) int DEFER_VARNAME(__LINE__) | |
| // Usage: | |
| /* | |
| void dosomething() | |
| { | |
| char* data = malloc(100); | |
| DEFER({ free(data); }); | |
| dosomethingwith(data); | |
| } | |
| */ |
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@sinecode
Did you manage to get rid of the
warning: ISO C forbids nested functions [-Wpedantic]warning?