Question

我一个程序里面的错误找不出来大家帮忙看看；

#include <stdio.h>
#include <stdlib.h>
typedef struct
{
int a[64];
int x[64];
int y[64];
int count[64];
int top;
} stack;
stack* init (int m, int n)
{
stack *q=malloc(sizeof(stack)); //提示错误在这里
if (q==NULL)
{ printf("init error\n"); return NULL;}
int j;
q->x[0]=m;
q->y[0]=n;
q->top=0;
for(j=0;j<64;j++)
q->count[j]=0;
return (q);
}
//
error C2440: 'initializing' : cannot convert from 'void *' to 'stack *'
Conversion from 'void*' to pointer to non-'void' requires an explicit cast

Answer 1

stack *q=(stack *)malloc(sizeof(stack));

不能将'void *'转化为'stack *'

追问

如何修改！！

追答

stack* init(int m, int n)
{ int j;
stack *q=(stack *)malloc(sizeof(stack));
if (q==NULL)
{ printf("init error\n"); return NULL;}
q->x[0]=m;
q->y[0]=n;
q->top=0;
for(j=0;jcount[j]=0;
return (q);
}

Answer 2

stack *q=(stack*)malloc(sizeof(stack)); //提示错误在这里