基本上这是一个玩骰子的程序，但我对srand有问题。 它给出一个错误，指出"隐式转换丢失整数精度："time_t"(又名"long"(到'无符号 int'" 这是为什么呢？
我还想知道是否有其他方法可以改进此代码？ 目前我只知道stdio.h，我知道有一些像iostream或类似的东西。 有没有办法也向我解释这些。
这是代码。 我知道CRT安全没有警告是忽略一些错误，但我仍然想知道为什么会弹出错误？
#define _CRT_SECURE_NO_WARNINGS
#define MAX_CHIPS 400
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void display_details(void);
int throws_die(void);
int main() so on
{
int die1, die2, throw_sum;
int PointToMake;
int Games_Played = 0;
int Games_Won = 0;
int Games_Lost = 0;
int CurrentChips = MAX_CHIPS;
int BetChips;
char PlayerName[30];
char PlayAgain;
display_details();
srand(time(NULL));
printf("Would you like to play Test your luck [y|n]?n");
scanf(" %c", &PlayAgain);
while ((PlayAgain == 'y') && (CurrentChips > 0))
{
if (Games_Played == 0)//shows how many games played which is obviously 0
{
printf("A new chellenger! What is your name?n");
scanf(" %s", &PlayerName);
printf("Hi %s!n", PlayerName);
}
Games_Played = Games_Played + 1;//each new game it will increase by 1
printf("Number of chips: %dn", CurrentChips);
printf("Place your bet:n ");
scanf("%d", &BetChips);
while ((BetChips < 0) || (BetChips > CurrentChips))
{
printf("uuh ....You can only bet the chips you have.. (0-%d)!n", CurrentChips);
printf("Place your bet: n");
scanf("%d", &BetChips);
}
die1 = throws_die();
die2 = throws_die();
throw_sum = die1 + die2;
printf("You Got: %d + %d = %dn", die1, die2, throw_sum);
if ((throw_sum == 7) || (throw_sum == 12))
{
//+1 to games won
Games_Won = Games_Won + 1;
//adding to bet balance
CurrentChips = CurrentChips + BetChips;
printf("XXXXX Winner! d(^_^) XXXXXn");
}
else if ((throw_sum == 2) || (throw_sum == 3) || (throw_sum == 10))
{
Games_Lost = Games_Lost + 1;
CurrentChips = CurrentChips - BetChips;
printf("XXXXX Loser! :( XXXXXn");
}
else
{
PointToMake = throw_sum;
printf("Points to make is: %dn", PointToMake);
die1 = throws_die();
die2 = throws_die();
throw_sum = die1 + die2;
printf(" |--->> Spinned: %d + %d = %dn", die1, die2, throw_sum);
while (throw_sum != PointToMake && throw_sum != 7)
{
die1 = throws_die();
die2 = throws_die();
throw_sum = die1 + die2;
printf(" |--->> Spinned: %d + %d = %dn", die1, die2, throw_sum);
}
if (throw_sum == PointToMake)
{
printf("XXXXX Winner! (x2 the bet) XXXXXn");
//x2 added to balance
CurrentChips = CurrentChips + 2 * BetChips;
Games_Won = Games_Won + 1;
}
else
{
Games_Lost = Games_Lost + 1;
CurrentChips = CurrentChips - BetChips;
printf("XXXXX Loser!:( XXXXXn");
}
}
if (CurrentChips > 0)
{
printf("You now have %d chips.n", CurrentChips);
printf("============================nn");
printf("Play Again %s [y|n]? ", PlayerName);
scanf(" %c", &PlayAgain);
printf("============================n");
}
else
{
printf("you're out of chips.n");
printf("XXXXX GG TRY AGAIN NEXT TIME XXXXXn");
}
}
if (Games_Played == 0)
{
printf("Oh well.... better luck next time!n");
}
else if (Games_Played == 1)
{
printf("%s played %d game and is cashing out with %d chips!n", PlayerName, Games_Played, CurrentChips);
printf(" |---> Games won: %dn", Games_Won);
printf(" |---> Games lost: %dn", Games_Lost);
printf("Thanks for playing, come again to test that luck of yours %s.n", PlayerName);
}
else
{
printf("%s played %d games and is cashing out with %d chips!n", PlayerName, Games_Played, CurrentChips);
printf(" |---> Games won: %dn", Games_Won);
printf(" |---> Games lost: %dn", Games_Lost);
printf("nThanks for playing, come again to test that luck of yours %s!n", PlayerName);
}
return 0;
}
void display_details(void)
{
printf("File :.... assignment.cn");
printf("Author :.... n");
printf("Stud ID :.... n");
printf("Email ID :.... n");
printf("This is my own work as defined by the n");
printf("University's Academic Misconduct Policy.n");
}
int throws_die(void)
{
return 1 + rand() % 6;
srand或多或少是这样定义的：
void srand(unsigned int seed);
time或多或少是这样定义的：
__int64 time(__int64 *t);
因此，您将__int64(64 位(传递到unsigned int(32 位(参数中，如果没有潜在的运行，这是不可能的。这就是警告消息告诉您的内容。