【C语言库函数源代码】
【本程序在Dev C++ 4.9.9.2 下编译通过】
/*
Sets the first count characters of string the character value.
If the length of string is less than count, the length of string is used in place of n.
把字符串的前count个字符设置为字符val。
*/
char * my_strnset(char * str,int val,int count)
{
char *p = str;
while (count-- && *p)
*p++ = (char)val;
return(p);
}
int main()
{
char str[] ="ammana_babi";
my_strnset(str,'*',strlen(str)-4);
puts(str);
system("pause");
return 0;
}