printf和长双 [英] printf and long double
本文介绍了printf和长双的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
code:
#include <stdio.h>
int main(void)
{
float aboat = 32000.0;
double abet = 5.32e-5;
long double dip = 5.32e-5;
printf("%f can be written %e\n", aboat, aboat);
printf("%f can be written %e\n", abet, abet);
printf("%lf can be written %le\n", dip, dip);
return 0;
}
输出:
32000.000000 can be written 3.200000e+004
0.000053 can be written 5.320000e-005
-1950228512509697500000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000.000000
can be written 2.725000e+002
Press [Enter] to close the terminal ...
我使用Windows上的Netbeans最新的gcc。为什么长双不起作用?是的printf说明符错误(%LF)?
Hi, I am using latest gcc with Netbeans on Windows. Why long double doesn't work? Are printf specifiers wrong (%lf)?
推荐答案
除了修改错误,GCC的哪个端口到Windows? MinGW的使用Microsoft C函数库和我似乎记得,这个库中有80bits不支持长双(Microsoft C编译器使用64位长一倍,因各种原因)。
In addition to the wrong modifier, which port of gcc to Windows? mingw uses the Microsoft C library and I seem to remember that that this library has no support for 80bits long double (microsoft C compiler use 64 bits long double for various reasons).
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