这是我的代码:
#include <stdio.h>
#include <stdlib.h>
void getinfo(unsigned int a, unsigned int b, char **s);
int main(){
unsigned int len_max = 8;
unsigned int current_size = 0;
char *pStr = malloc(len_max);
if(pStr == NULL){
perror("\nMemory allocation\n");
return EXIT_FAILURE;
}
current_size = len_max;
printf("Inserisci hostname: ");
getinfo(len_max, current_size, &pStr);
printf("\nLa stringa inserita è: %s\n", pStr);
free(pStr);
return EXIT_SUCCESS;
}
void getinfo(unsigned int a, unsigned int b, char **pStr){
unsigned int i = 0;
char c = EOF;
while((c = getchar()) != '\n'){
*pStr[i++] = (char)c;
if(i == b){
b = i+a;
if((*pStr = realloc(*pStr, b)) == NULL){
perror("\nMemory allocation error\n");
exit(EXIT_FAILURE);
}
}
}
*pStr[i]='\0';
}
当我执行此代码时,当我按下回车键时(在我写完字符串之后)出现分段错误。
我确定问题出在函数中(可能问题出在 *s 指针上),但我不知道如何纠正它......