我正在尝试从const char指针数组中打印出选定的字符串,但是显示的文本绝对是垃圾。我不确定出了什么问题。我将代码压缩下来以便于阅读:
#pragma once
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define HAND_CARDS 5 /* maximum number of cards any particular Hand */
typedef struct card {
int suit;
int face;
} Card;
typedef struct hand {
struct card pHand[5];
int hQuality;
} Hand;
void print_pHand(struct hand player, const char* suit[], const char* face[]);
int main(void)
{
/* initialize memory arrays of suit and face, to be referenced through out the game */
const char *suit[4] = {"Hearts", "Diamonds", "Clubs", "Spades"};
const char *face[13] = {"Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight",
"Nine", "Ten", "Jack", "Queen", "King"};
int deck[4][13] = { 0 };
Hand pHuman = { 0 };
print_pHand(pHuman, suit, face);
return 0;
}
void print_pHand(struct hand player, const char* suit[], const char* face[])
{
int f = 0, s = 0, i = 0;
for (i = 0; i < HAND_CARDS; ++i) {
s = player.pHand[i].suit;
f = player.pHand[i].face;
printf("[%5s : %-8s%c", suit[s], face[f]);
}
}
我更改了printf()部分,但仍然产生相同的问题。
Unhandled exception at 0x79B81F4C (ucrtbased.dll) in PA7.exe:
0xC0000005: Access violation reading location 0xF485A8D3. occurred
似乎有内存访问问题,但是我不确定如何解决。
注意:假设已经随机发给每个玩家纸牌,尽管我可能错过了一些重要的部分。因此,有关完整代码,请在此处查看我的github:
您代码中的这一行,
printf("[%5s : %-8s%c", suit[s], face[f]);
没有将足够数量的参数传递给printf()
。由于您的呼叫中有三个'%'
,因此printf()
期望另外三个参数,而不是两个。但是,由于printf()
是作为可变函数实现的,它不知道您实际传递给它多少个参数,因此它设法访问了一些内存,这些内存将占用您不存在的第三个参数,从而导致错误。