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librb: Add smart-pointer macro for RAII resource management.

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A good practice, especially for large community projects, preventing
leaks and error handling as clean possible without exceptions.
This commit is contained in:
Jason Volk 2016-06-22 18:15:58 -07:00
parent 33bbdf474e
commit 215775da59
1 changed files with 16 additions and 0 deletions
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16
librb/include/rb_memory.h
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@ -32,6 +32,8 @@
#include <stdlib.h>
#define RB_UNIQUE_PTR(deleter) __attribute__((cleanup(deleter)))
#define RB_AUTO_PTR RB_UNIQUE_PTR(rb_raii_free)
void rb_outofmemory(void) __attribute__((noreturn));
@ -82,4 +84,18 @@ rb_free(void *ptr)
free(ptr);
}
static inline void
rb_raii_free(const void *const ptr)
{
if(!ptr)
return;
const void *const _ptr = *(const void **)ptr;
if(!_ptr)
return;
rb_free((void *)_ptr);
}
#endif /* _I_MEMORY_H */