根据Visual Studio中的“调试/发布"配置自动#define [英] Automatic #defines according to Debug/Release config in Visual Studio

问题描述

我的程序中有如下调试输出:

I have debug output in my program like this:

#define DEBUG
...
#ifdef DEBUG
    std::cout << "[RE_words] " << m_re << std::endl;
#endif

和DEBUG是在我的程序中手动定义的.在发布发行版时，我总是会注释掉该行.在Visual Studio中，还有 Debug 和 Release 版本的配置，这些配置可以处理用于编译的命令行等.我还可以使用配置调试"为编译器自动定义DEBUG吗?怎么样?

and DEBUG is defined in my program manually. I always comment out the line when I make a release version. In Visual Studio, there are also Configurations for Debug vs Release versions which handle the commandline etc. used for compiling. Can I also use the Configuration "Debug" to automatically define DEBUG to the compiler? How?

推荐答案

Visual Studio自动为Debug版本(对于非调试版本，为NDEBUG)定义_DEBUG符号.

The Visual Studio automatically defines _DEBUG symbol for Debug builds (and NDEBUG for non-debug builds).

另一种方法是转到项目设置->配置属性-> C/C ++->预处理程序，然后手动编辑预处理程序定义.

Another way to do this is to go to the project settings -> configuration properties -> C/C++ -> preprocessor, and edit the preprocessor definitions manually.

另请参阅:
此答案更详细地说明了_DEBUG和NDEBUG之间的区别.
此答案解释了NDEBUG符号的用途以及该符号是否由标准定义.

See also:
This answer explains the differences between _DEBUG and NDEBUG in more detail.
This answer explains the purpose of the NDEBUG symbol and whether or not is it defined by the standard.

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