c++ prime plus 3.1

最新推荐文章于 2024-07-24 10:13:50 发布

rocvfx

最新推荐文章于 2024-07-24 10:13:50 发布

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本文通过一个简单的C++程序展示了不同整数类型（int, short, long, long long）的字节大小及最大值，并输出了int类型的最小值与每字节位数。

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3.1

#include<iostream>
#include<climits>
int main()
{
	using namespace std;
	int n_int = INT_MAX;
	short n_short = SHRT_MAX;
	long n_long = LONG_MAX;
	long long n_llong = LLONG_MAX;

	cout << "int is " << sizeof (int) << " bytes." << endl;
	cout << "short is " << sizeof n_short << "bytes." << endl;
	cout << "long is " << sizeof n_long << "bytes." << endl;
	cout << "long long is " << sizeof n_llong << "bytes." << endl;
	cout << endl;

	cout << "Maximum values: " << endl;
	cout << "int: " << n_int << endl;
	cout << "short: " << n_short << endl;
	cout << "long: " << n_long << endl;
	cout << "long long: " << n_llong << endl;

	cout << "Minimum int value = " << INT_MIN << endl;
	cout << "bits per byte = " << CHAR_BIT << endl;
	system("pause");
	return 0;
}