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原标题:For loop writing special signs
  • 时间:2011-10-07 22:35:06
  •  标签:
  • c++
  • char
void printchars()
{
  for (x=128;x<224;x++)
      write(x);

我希望X能成为书写功能的char子。 如何改变拟由书写功能作为果园处理的x,但 lo中的 in子?

最佳回答

What is the point of making x an int if you re just going to strip away its range? That s what makes this a very strange request. You should just make x a unsigned char -- for(unsigned char x = 128; x <224; ++ x) { ....

如果你只是想确保你重新打上<代码>unsign char/code> model specialized of write<>,那么就这样说:

write<unsign char>x;

否则,你就不得不使用打字方式:

<代码>write((未签名)x);

。 我刚刚认识到你可能经历的情况。 我的猜测是,你最初使用的是<代码>char,但发现有些错误,数字超过127。 或许应当使用<代码>unsign char>,而不是int。 我对此作了解释。 <代码>char有一系列-128至+127。 <代码>unsign char, 范围为0-255。

问题回答

Cast x to a char:

write(static_cast<char>(x));

请注意,X要成为char子也是 counter。





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