n_exceptions.h

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#ifndef ____EXCEPTION___MANAGEMENT__FOR_C
#define ____EXCEPTION___MANAGEMENT__FOR_C
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
 
#define NO_EXCEPTION 0
#define ARRAY_EXCEPTION 2
#define DIVZERO_EXCEPTION 4
#define OVERFLOW_EXCEPTION 8
#define PARSING_EXCEPTION 16
 
#define GENERAL_EXCEPTION ARRAY_EXCEPTION | DIVZERO_EXCEPTION | OVERFLOW_EXCEPTION | PARSING_EXCEPTION
 
typedef struct ExceptionContextList {
    jmp_buf context;
    struct ExceptionContextList* head;
} ExceptionContextList;
 
extern ExceptionContextList* __Exceptions;
 
/* Add an exception in the stack */
void push_exception(void);
/* Pop an exceptions from the stack */
void pop_exception(int);
 
#define Try                                     \
    {                                           \
        volatile int __exc_;                    \
        push_exception();                       \
        __exc_ = setjmp(__Exceptions->context); \
        if (__exc_ == NO_EXCEPTION) {
#define Catch(X)        \
    }                   \
    if (__exc_ & (X)) { \
        __exc_ = 0;
 
#define CatchAll()     \
    }                  \
    if (__exc_ != 0) { \
        __exc_ = 0;
 
#define EndTry             \
    }                      \
    pop_exception(__exc_); \
    }
 
#define Throw(X)                                   \
    n_log(LOG_ERR, "Exception thrown type:%d", X); \
    longjmp(__Exceptions->context, (X))
 
#ifdef __cplusplus
}
#endif
 
#endif /* #ifndef ____EXCEPTION___MANAGEMENT__FOR_C  */