本文介绍了在C ++中的头文件中声明的源文件中定义静态方法的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在C ++中使用静态方法时遇到一些麻烦
I am having a little trouble working with static methods in C++
示例.h:
class IC_Utility {
public:
IC_Utility();
~IC_Utility();
std::string CP_PStringToString( const unsigned char *outString );
void CP_StringToPString( std::string& inString, unsigned char *outString, short inMaxLength );
static void CP_StringToPString( std::string& inString, unsigned char *outString);
void CP_StringToPString( FxString& inString, FxUChar *outString);
};
示例.cpp:
static void IC_Utility::CP_StringToPString(std::string& inString, unsigned char *outString)
{
short length = inString.length();
if( outString != NULL )
{
if( length >= 1 )
CPLAT::CP_Utility::CP_CopyMemory( inString.c_str(), &outString[ 1 ], length );
outString[ 0 ] = length;
}
}
我想打这样的电话:
IC_Utility::CP_StringToPString(directoryNameString, directoryName );
但是我得到一个错误:
error: cannot declare member function 'static void IC_Utility::CP_StringToPString(std::string&, unsigned char*)' to have static linkage
我不明白为什么我不能这样做。谁能帮助我理解为什么以及如何实现我想要的东西?
I dont understand why I cannot do this. Can anyone help me understand why and how to achieve what I want?
推荐答案
删除静态关键字。只需在类定义中保留它即可。
Remove
static
keyword in method definition. Keep it just in your class definition.
static
关键字放置在.cpp文件中意味着某个函数具有一个静态链接,即它只能从同一文件中的其他函数访问。
static
keyword placed in .cpp file means that a certain function has a static linkage, ie. it is accessible only from other functions in the same file.
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