编译过程中弹出new(35) : error C2061: syntax error : identifier 'THIS_FILE'问题的原因及解决方法

http://www.99inf.net/SoftwareDev/VC/27092.htm

 

原本一直正常的程序,今天编译时突然弹出以下内容

c:/program files/microsoft visual studio/vc98/include/new(35) : error C2061: syntax error : identifier 'THIS_FILE'
c:/program files/microsoft visual studio/vc98/include/new(35) : error C2091: function returns function
c:/program files/microsoft visual studio/vc98/include/new(35) : error C2809: 'operator new' has no formal parameters
c:/program files/microsoft visual studio/vc98/include/new(36) : error C2061: syntax error : identifier 'THIS_FILE'
c:/program files/microsoft visual studio/vc98/include/new(37) : error C2091: function returns function

等等

 

最后在网上查明后才知道原因,在往mfc类添加头文件时,需注意

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

这一段内容,添加的头文件必须在该段程序之前,否则编译不通过。

 

例如:

 

#include "Config.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

 

正确

 


以下的错误,将头文件放在该段程序之后将编译不通过
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

 

#include "Config.h"

你可能感兴趣的:(c,function,File,mfc)