strlen.c

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/***
*strlen.c - contains strlen() routine
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       strlen returns the length of a null-terminated string,
*       not including the null byte itself.
*
*******************************************************************************/
 
#include <string.h>
 
#pragma function(strlen)
 
/***
*strlen - return the length of a null-terminated string
*
*Purpose:
*       Finds the length in bytes of the given string, not including
*       the final null character.
*
*Entry:
*       const char * str - string whose length is to be computed
*
*Exit:
*       length of the string "str", exclusive of the final null byte
*
*Exceptions:
*
*******************************************************************************/
 
size_t __cdecl strlen (
        const char * str
        )
{
        const char *eos = str;
 
        while( *eos++ ) ;
 
        return( eos - str - 1 );
}