c¿âº¯ÊýÏê½â——assert
c¿âº¯ÊýÏê½â——assert
º¯ÊýÃû: assert
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ÓÃ ·¨: void assert(int test);
³ÌÐòÀý:
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
struct ITEM {
int key;
int value;
};
/* add item to list, make sure list is not null */
void additem(struct ITEM *itemptr) {
assert(itemptr != NULL);
/* add item to list */
}
int main(void)
{
additem(NULL);
return 0;
}
assert() º¯ÊýÓ÷¨
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#include <assert.h>
void assert( int expression );
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#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
int main( void )
{
FILE *fp;
fp = fopen( "test.txt", "w" );//ÒÔ¿ÉдµÄ·½Ê½´ò¿ªÒ»¸öÎļþ£¬Èç¹û²»´æÔھʹ´½¨Ò»¸öͬÃûÎļþ
assert( fp ); //ËùÒÔÕâÀï²»»á³ö´í
fclose( fp );
fp = fopen( "noexitfile.txt", "r" );//ÒÔÖ»¶ÁµÄ·½Ê½´ò¿ªÒ»¸öÎļþ£¬Èç¹û²»´æÔھʹò¿ªÎļþʧ°Ü
assert( fp ); //ËùÒÔÕâÀï³ö´í
fclose( fp ); &
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