Code:
#include <stdio.h>
#include <string.h>
char *strstrdel( char *str, const char *substr )
{
char *p = strstr( str, substr );
if ( p )
{
char *q = p + strlen( substr );
memmove( p, q, strlen ( q ) + 1 );
}
return str;
}
int main( void )
{
char strs[][32] = { "abcdef", "defabc", "xabcyz", "" };
int i;
for ( i = 0; i < 4; i++ )
{
printf( "\"%s\" -> ", strs[i] );
printf( "\"%s\"\n", strstrdel( strs[i], "abc" ) );
}
}