strlen.c

来自「Nucleus Common Library for Integrator 」· C语言 代码 · 共 73 行

/*************************************************************************
*
*               Copyright Mentor Graphics Corporation 2002
*                         All Rights Reserved.
*
* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS
* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS
* SUBJECT TO LICENSE TERMS.
*
*************************************************************************/

/*************************************************************************
* FILE NAME                                     VERSION
*
*       strlen.c                                Nucleus Common Library 1.1
*
* DESCRIPTION
*
*       This file contains the implementation of NCL_strlen.
*
* DATA STRUCTURES
*
*       None.
*
* FUNCTIONS
*
*       NCL_strlen
*
* DEPENDENCIES
*
*       ncl.h
*       string.h
*       nucleus.h
*
************************************************************************/

#define NU_NCL_SOURCE_FILE

#include "ncl\inc\ncl.h"
#include "ncl\inc\string.h"
#include "plus\nucleus.h"                                /* MMU Support */

/*************************************************************************
*
*   FUNCTION
*
*       NCL_strlen
*
*   DESCRIPTION
*
*       Returns the number of consecutive non-null chars in s1.
*
*   INPUTS
*
*       s1                  Null-terminated string in calculate size of.
*
*   OUTPUTS
*
*       size_t              Number of consecutive non-null chars in s1.
*
*************************************************************************/

size_t NCL_strlen(register const char *s1)
{
    register size_t n = 0;

    while (*s1++)
        ++n;

    return n;
}