#ifndef _TESTUTIL_H
 #define _TESTUTIL_H
 

 #include <cstring>
 #include <cstdio>

 #define check(assertion, msg) \
     if (!(assertion)) { \
       fprintf(stderr, "assertion failed: %s\n", msg); \
       return 0; \
     }
 
 #define checkint(expected, actual, name) \
     check(expected == actual, name " should be " #expected)
 
 #define checkstr(expected, actual, name) \

     check(!strcmp(expected, actual), name " should be '" expected "'")

 #define RESET_VARS_START void __reset_vars() {
 
 #define RESET_VARS_END }

 #define test(NAME) \
     { \

       __reset_vars(); \

       int result = NAME (); \
       if (!result) { \
           fprintf(stderr, "test failed: %s\n", #NAME); \
           return 0; \
       } \
     }
 

 #define succeed() return 1

 #define fail() return 0

 
 #endif