编译错误“”struct“type redefinition”虽然它是它的第一个定义 [英] Compile error "'struct' type redefinition" although it's the first definition for it

问题描述

一切都运行良好，直到我把一些代码从主文件移动到一个新类，然后我有以下错误：

Everything was working well untill I moved some code from the main file to a new class, then I had the following error:

错误C2011：'color1'：'struct'type redefinition

error C2011: 'color1' : 'struct' type redefinition

struct color1
{
    color1()
    {
        red = green = blue = 0;
    }

    color1(float _red, float _green, float _blue)
    {
        red = _red;
        green = _green;
        blue = _blue;
    }

    float red, green, blue;
};

有什么想法吗？

推荐答案

如果编译器说它被重新定义，那么它可能是。

If the compiler says it's redefined, then it probably is.

我的心理调试技巧告诉我你将结构从源文件一个头文件，并且忘记在头文件中的include guard，然后在源文件中包含多次。

My psychic debugging skills tell me that you moved the struct from a source file to a header file, and forget the include guards in that header, which is then included multiple times in a source file.

编辑：作为一般规则，我通常建议避免引导下划线。在某些情况下（例如后面跟着一个大写字母），它们被保留用于实现，最简单的是不要使用领导 _ ，而不是希望你记住所有的规则。

As a general rule I generally suggest avoiding leading underscores. In some cases (for example followed by a capital letter) they're reserved for the implementation and it's simplest to just never use leading _ instead of hoping you remember all the rules.

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