strsep作用http://antyoung.blog.51cto.com/2471749/655593分割字符串的.和strtok基本一样. #include #include int main() { char ptr[]={“abcdefghijklmnopqrstuvwxyz”}; char *p,*str=”m”; p=p
http://antyoung.blog.51cto.com/2471749/655593
分割字符串的.和strtok基本一样.
#include <string.h>
#include <stdlib.h>
int main()
{
char ptr[]={ “abcdefghijklmnopqrstuvwxyz “};
char *p,*str= “m “;
p=ptr;
printf( “%s\n “,strsep(&p,str));
printf( “%s\n “,p);
str= “s “;
printf( “%s\n “,strsep(&p,str));
printf( “%s\n “,p);
}
[root@shwhg test]# gcc test131.c
[root@shwhg test]# ./a.out
abcdefghijkl
nopqrstuvwxyz
nopqr
tuvwxyz
c语言里面常用的字符串分割函数有strtok和strsep
//strtok示例:
#include <string.h>
#include <stdio.h>
int main(void)
{
char input[16] = “abc,d”;
char *p;
p = strtok(input, “,”);
if (p) printf(“%s\n”, p);
p = strtok(NULL, “,”);
if (p) printf(“%s\n”, p);
return 0;
}
//strsep示例:
#include <string.h>
main()
{
char string[] = “words separated by spaces”;
char *running;
char *token;
running=string;
while((token = strsep (&running,” “))!=NULL)
printf(“%s\n”,token);
exit(0);
}
注：
下面的说明摘自于最新的Linux内核2.6.29，说明了这个函数已经不再使用，由速度更快的strsep（）代替
/*
* linux/lib/string.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*/
/*
* stupid library routines.. The optimized versions should generally be found
* as inline code in <asm-xx/string.h>
*
* These are buggy as well..
*
* * Fri Jun 25 1999, Ingo Oeser <ioe@informatik.tu-chemnitz.de>
* – Added strsep() which will replace strtok() soon (because strsep() is
* reentrant and should be faster). Use only strsep() in new code, please.
*
* * Sat Feb 09 2002, Jason Thomas <jason@topic.com.au>,
* Matthew Hawkins <matt@mh.dropbear.id.au>
* – Kissed strtok() goodbye
*/ |
|
今天的文章strsep作用分享到此就结束了，感谢您的阅读。
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