C Tutorial/string.h/strrchr
Версия от 14:21, 25 мая 2010; (обсуждение)
strrchr
Item Value Header file string.h Declaration char *strrchr(const char *str, int ch); Return returns a pointer to the last occurrence of ch in *str.
If no match is found, a null pointer is returned.
#include <string.h>
#include <stdio.h>
int main(void){
char *p;
p = strrchr("this is a test", "i");
printf(p);
return 0;
}Using strchr
#include <stdio.h>
#include <string.h>
int main()
{
const char *string = "This is a test";
char character1 = "a";
char character2 = "z";
if ( strchr( string, character1 ) != NULL ) {
printf( "\"%c\" was found in \"%s\".\n",
character1, string );
} else {
printf( "\"%c\" was not found in \"%s\".\n",
character1, string );
}
if ( strchr( string, character2 ) != NULL ) {
printf( "\"%c\" was found in \"%s\".\n",
character2, string );
} else {
printf( "\"%c\" was not found in \"%s\".\n",
character2, string );
}
return 0;
}"a" was found in "This is a test". "z" was not found in "This is a test".
