错误:警告:内置函数'memcpy'的不兼容隐式声明[默认启用]

Question

我收到这个错误.

error: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default]

这是代码:

int arr[ 12] = {1,0,0,0,0,0,0,0,0,0,9370, 0};
void *a = &arr;
memcpy(machine->mem, a,12*4);

我做错了什么？

Answer 1

你可能忘了包括<string.h>.

添加#include <string.h>到文件的顶部.