Visual Studio不允许我使用某些变量名 [英] Visual Studio doesn't allow me to use certain variable names

问题描述

我正在使用Visual Studio 2010 Express.当我使用某些变量名时，例如"near，"far"，"IN"，"OUT")，我无法编译:在使用的变量名之后出现语法错误. 示例:

I'm using Visual Studio 2010 Express. When I use certain variable names, like "near, "far", "IN", "OUT", I can't compile: I get syntax errors located after the variable name used. Example:

z = 1.0/(far - near);

错误:

error C2059: syntax error : ')'

如何禁用此功能"?

推荐答案

far和near是16位时代的内置编译器关键字.它们不再存在，也不再具有任何意义，但是出于向后兼容的原因，它们仍被定义为Windows标头中的宏.

far and near were built-in compiler keywords back in the 16-bit days. They no longer exist and they no longer have any meaning, but they're still defined as macros in the Windows headers for backwards compatibility reasons.

如果您不想要它们，只需取消定义它们(或不包括Windows标头)即可:

If you don't want them, just undefine them (or don't include the Windows headers):

#undef far
#undef near

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