C strstr() Function
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C strstr() Function
The strstr() function determines the first occurrence of a given string in another string.
Example
C Compiler
#include <stdio.h>
#include <string.h>
int main()
{
char str1[] = "wikimass is awesome and is good";
char str2[] = "is";
char *ret;
ret = strstr(str1, str2);
printf("substring: %s", ret);
return 0;
}
Output
substring: is awesome and is good
Syntax
char *strstr(char *str1, char *str2)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| str1 | Required | Specifies the string 1 |
| str2 | Required | Specifies the string 2 |
Return Value
| Value | Explanation |
|---|---|
| Address | Returns the pointer location from where the second string starts in the first string. |
| NULL | If the second string was not found in the first string. |
Reminder
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