[cpp] std::cout 涓哄ꖕ鋥&# 8332;printf 髧鎻黦趸涓뒇

[jinq0123 at 163.com]

用stlport就输出一致，应该是库的错误。恭喜你找到一个BUG。

Xu Ziding wrote:
> 代码如下：
> 	double d = 123456789e300;
> 	std::cout.precision(0);
> 	std::cout << std::fixed << d << std::endl;
> 	printf("%f\n", d );
> 我的VC7.1，DEBUG编译输出如下：
> 123456789000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000
> 123456789000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000
> RELEASE：
> 123456789000000170000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000
> 123456789000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000
>
> 为啥数大了之后，printf和流输出的值还不一样啊？而且debug和release的版本的输出也不一样呢？
>
>                                           ZiDing
>
>                                             10.29
>
>   
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