jitterbug/try.h
2023-01-16 02:20:53 +02:00

22 lines
979 B
C

#ifndef __JITTERBUG_TRY_H
#define __JITTERBUG_TRY_H
#ifdef JB_ENABLE_TRY_TRACE
#define __TRY_TRACE() do { \
printf("trace: %s:%d\n", __FILE__, __LINE__); \
} while(0)
#else
#define __TRY_TRACE()
#endif // JB_ENABLE_TRY_TRACE
// NOTE: The macro(s) below make use of a GCC extension called "Statement Exprs", which is nonstandard.
// More info: https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
#define TRYPTR_NIL(M_expr) __extension__({ void* _result = (void*)(M_expr); if (!_result) { __TRY_TRACE(); return (NULL); } _result; })
#define TRYPTR(M_expr) __extension__({ void* _result = (void*)(M_expr); if (!_result) { __TRY_TRACE(); return (-1); } _result; })
#define TRYST_NIL(M_expr) __extension__({ int _result = (int)(M_expr); if (_result < 0) { __TRY_TRACE(); return (NULL); } _result; })
#define TRYST(M_expr) __extension__({ int _result = (int)(M_expr); if (_result < 0) { __TRY_TRACE(); return (-1); } _result; })
#endif // __JITTERBUG_TRY_H