在for循环异常? [英] exception in for loop?

问题描述

为什么我的代码返回:

例外:EXC_BAD_ACCESS(代码= 2，地址= 0x10d637fa2)

Exception: EXC_BAD_ACCESS (code=2, address=0x10d637fa2)

它第一次进入for循环?

in the first time it enters the for loops?

void unAnnoyWord(char *str) {
    char *out = str, mostAnnoying = 'a';
    do
    {
        if (*str != mostAnnoying)
        {
            *out = *str;
        }
    } while (*str++);
}

char *str = "hakuna matata";
unAnnoyWord(str);

推荐答案

也许这就是您想要的:

#include <stdio.h>

void unAnnoyWord(char *str) {
    char *out = str, mostAnnoying = 'a';
    do {
        if (*str != mostAnnoying) {
            *out++ = *str;
        }
    } while (*str++);
}

void main() {
  char str[] = "hakuna matata";
  char *sstr = str;
  printf("%s\n",sstr);
  unAnnoyWord(str);
  printf("%s\n",sstr);
}

结果:

hakuna matata
hkun mtt

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