test_fit.c

来自「经典书籍：C Primer Plus(第五版)中文版和源代码 本书全面讲述了C」· C语言 代码 · 共 26 行

/* test_fit.c -- try the string-shrinking function */
#include <stdio.h>
#include <string.h> /* contains string function prototypes */
void fit(char *, unsigned int);

int main(void)
{
    char mesg[] = "Things should be as simple as possible,"
                  " but not simpler.";

    puts(mesg);
    fit(mesg,38);
    puts(mesg);
    puts("Let's look at some more of the string.");
    puts(mesg + 39);

    return 0;
}

void fit(char *string, unsigned int size)
{
    if (strlen(string) > size)
        *(string + size) = '\0';
}