strstr, _fstrstr

Scans a string for the occurrence of a given substring.

Defined in header <string.h>

Syntax

#include <string.h>
Near  version: char *strstr(const char *sl, const char *s2);
Far version: char far * far _fstrstr(const char far *sl, const char far *sl)

Portability

Remarks

Strstr scans si for the first occurrence of the substring s2.

Return value

strstr returns a pointer to the element in si, where s2 begins (points to s2 in si). If s2 does not occur in si, strstr returns null.

Example

#include <stdio.h>
#include <string.h>

int main(void)
{
   char *strl = "Borland International",  ''str2 = "nation", *ptr;
   ptr = strstr(strl, str2);
   printf("The substring  is: %s\n", ptr)
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

• cppreference (search)
• POSIX (search)
• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Extraction notes

• heading `strstr, Jstrstr` read as `strstr, _fstrstr`

Stable link: /3.1/string.h/strstr/ · short form /3.1/strstr/