我不断遇到段错,我不知道为什么,如果有人可以帮助我,那就太好了。我在这里找不到错误............
我得到所有打印状态直到前四个循环结束
然而,我没有得到&#34; out&#34; print语句,那就是设置错误的地方#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
void getWords(int arg, char** argWords, Words* words);
void getWords(int arg, char** argWords, Words* words)
{
printf("In Method\n");
int ewm=1;
for(ewm =1 ; ewm<= arg; ewm++){
int tempr = (strlen(argWords[ewm]) +1);
printf("tempr: %d\n", tempr);
words->numWords = words->numWords + tempo;
printf("numWords: %d\n", words->numWords);
printf("in\n");
}
printf("out\n");
printf("%d\n", words->numWords);
int x = 1;
int y = 0;
printf("four loop\n");
for(x= 1; x<=arg; x++){
printf("SIZE: %d\n", (strlen(argWords[x] )+1));
char* temp = malloc(strlen(argWords[x])+1);
printf("%s\n", argWords[x]);
}
}
//*****************************//
int main(int argc, char** argv){
if(argc == 0){
printf("Please input a value/n");
return 1;
}
Words *currWords = malloc(sizeof(Words));
printf("Mem located\n");
getWords(argc, argv, currWords);
return 0;
}
答案 0 :(得分:2)
arg
是argWords
中元素的数量,因此来自getWords
的以下代码可以访问数组范围:
for(x= 1; x<=arg; x++)
{
printf("SIZE: %d\n", (strlen(argWords[x] )+1)); // <---
char* temp = malloc(strlen(argWords[x])+1); // <---
访问argWords[x]
时会出现无法预测的行为。正确的上限应为x < arg
。
同样的问题:
for(ewm =1 ; ewm<= arg; ewm++) // <--- here must be ewm < arg
{
int tempr = (strlen(argWords[ewm]) +1)