在c中重新分配2d char数组

I have a problem with reallocating an array. I want to save inputs to a string array and realloc it with every new entry. Heres my function:

我有重新分配数组的问题。我想将输入保存到字符串数组并使用每个新条目重新分配它。继承我的职责：

char** history=0;

int historycounter=0;

void saveHistory(char* input){

    history=(char**)realloc(history,sizeof(*history)+sizeof(input)*sizeof(char));
    history[historycounter]=(char*)malloc(sizeof(input)*sizeof(char));
    strcpy(history[historycounter],input);
    historycounter++;
}

1 个解决方案

#1

try this

尝试这个

void saveHistory(const char *input){
    size_t size = strlen(input)+1;
    history = realloc(history, sizeof(*history)*(historycounter+1));
    history[historycounter] = malloc(size);
    memcpy(history[historycounter], input, size);
    historycounter++;
}