hdp.h

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#ifndef HDP_H
#define HDP_H
 
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
 
//#define EXCEPTION_POLICY // only for C++
//#define EXIT_POLICY // DEFAULT
 
#if defined __cplusplus && defined EXCEPTION_POLICY
#define MO(func_call) ({\
      int __MO__result__; \
      if ((__MO__result__ = (func_call)) == -1) \
         throw errno; \
      __MO__result__; \
   })
 
#define Ne(func_call) ({\
      int __Ne__result__; \
      if ((__Ne__result__ = (func_call)) < 0) \
         throw errno; \
      __Ne__result__; \
   })
 
#define Nu(func_call) ({\
      void* __NU__result__; \
      if ((__NU__result__ = (func_call)) == NULL) \
         throw errno; \
      __NU__result__; \
   })
 
#define NZ(func_call) ({\
      int __NZ__result__; \
      if ((__NZ__result__ = (func_call)) != 0) \
         throw __NZ__result__; \
      __NZ__result__; \
   })
 
#define EF(func_call) ({\
      int __EF__result__; \
      if ((__EF__result__ = (func_call)) == EOF) \
         throw errno; \
      __EF__result__; \
   })
 
#define MOP(func_call) ({\
      void* __MOP__result__; \
      if ((__MOP__result__ = (func_call)) == (void*)-1) \
         throw errno; \
      __MOP__result__; \
   })
#else
#define MO(func_call) ({\
      int __MO__result__; \
      if ((__MO__result__ = (func_call)) == -1) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (errno)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __MO__result__; \
   })
 
#define Ne(func_call) ({\
      int __Ne__result__; \
      if ((__Ne__result__ = (func_call)) < 0) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (errno)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __Ne__result__; \
   })
 
#define Nu(func_call) ({\
      void* __Nu__result__; \
      if ((__Nu__result__ = (func_call)) == NULL) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (errno)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __Nu__result__; \
   })
 
#define NZ(func_call) ({\
      int __NZ__result__; \
      if ((__NZ__result__ = (func_call)) != 0) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (__NZ__result__)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __NZ__result__; \
   })
 
#define EF(func_call) ({\
      int __EF__result__; \
      if ((__EF__result__ = (func_call)) == EOF) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (errno)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __EF__result__; \
   })
 
#define MOP(func_call) ({\
      void* __MOP__result__; \
      if ((__MOP__result__ = (func_call)) == (void*)-1) \
         do { \
            fprintf (stderr, "%s at \"%s\":%d: %s\n", \
                     __func__ , __FILE__, __LINE__, strerror (errno)); \
            *((int*)0) = 0; \
            abort (); \
         } while (0); \
      __MOP__result__; \
   })
#endif
 
#define errMO MO
#define errNe Ne
#define errNu Nu
#define errNZ NZ
#define errEF EF
#define errMOP MOP
 
#endif
 
/* ************************************************** */
/* ************************************************** */