C/C++拾遗录--每种内置类型的长度

原创于 2012-12-26 17:25:03 发布 · 665 阅读

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本文通过C++代码展示了各种基本数据类型的大小，包括布尔型、字符型、整型、浮点型等，并以表格形式直观呈现。

#include <iostream>

using namespace std;
int main()
{
	cout<<"type\t\t\t"<<"size"<<endl
		<<"bool\t\t\t"<<sizeof(bool)<<endl
		<<"char\t\t\t"<<sizeof(char)<<endl
		<<"signed char\t\t"<<sizeof(signed char)<<endl
		<<"unsigned char\t\t"<<sizeof(unsigned char)<<endl
		<<"wchar_t\t\t\t"<<sizeof(wchar_t)<<endl
		<<"short\t\t\t"<<sizeof(short)<<endl
		<<"signed short\t\t"<<sizeof(signed short)<<endl
		<<"unsigned short\t\t"<<sizeof(unsigned short)<<endl
		<<"int\t\t\t"<<sizeof(int)<<endl
		<<"signed int\t\t"<<sizeof(signed int)<<endl
		<<"unsigned int\t\t"<<sizeof(unsigned int)<<endl
		<<"long\t\t\t"<<sizeof(long)<<endl
		<<"signed long\t\t"<<sizeof(signed long)<<endl
		<<"unsigned long\t\t"<<sizeof(unsigned long)<<endl
		<<"float\t\t\t"<<sizeof(float)<<endl
		<<"double\t\t\t"<<sizeof(double)<<endl
		<<"long double\t\t"<<sizeof(long double)<<endl;
	return 0;
}