strlen, _fstrlen

raw OCR

Calculates the length of a string.

Defined in header <string.h>

Syntax

#include <string.h>
Near version: size_t strlen(const char *s);
Far version: size_t _fstrlen(const char far *s)

Portability

	DOS	UNIX	Windows	ANSI C	C++ only
Near version	■	■	■	■
	■		■

Remarks

strlen calculates the length of s.

Return value

strlen returns the number of characters in s, not counting the null-terminating character.

Example

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

int main (void)
{
   char *string    "Borland International";
   printf ("%d\n"  strlen(string));
   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.

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