LNK2001: unresolved external symbol

[jbsys]

HI;
I am new to C++, and am having some problems with a dll that I am creating. Most of the fuctions in the dll will be accessible from other programs except for three. I will attempt to explain my problem. I have a function inside of dll project. There is a prototype defined in one of the header files. The function in the dll .cpp program is as follows:

#include "stdafx.h"

int intStrTrmLen(char *strSource,int intLength)
{
// AFX_MANAGE_STATE(AfxGetStaticModuleState());
// char *strSource;
// int intLength;
{
int intCharIndex;
for(intCharIndex=intLength - 1;
intCharIndex > 0 && !isgraph(strSource[intCharIndex]);
intCharIndex--);
return(intCharIndex + 1);
// return TRUE;
}
}


The stdafx.h header file contains the function prototype:
int intStrTrmLen(char,int);


When I attempt to build or rebuild my project, I get the error LNK2001: unresolved external symbol "int __cdecl intStrTrmLen(char,int)" (?intStrTrmLen@@YAHDH@Z) error. Does anyone have any ideas as to;
1) How does this occur?
2) What do I do to fix it?

Thanks
jbsys

 

[IonelBurtan]

carefully. you missed a * in the prototype.

the prototype should be:
int intStrTrmLen(char*,int);

One more thing. Do not put common used functions in stdafx.h file directly. Instead put all in a file like common.h then add an include <common.h> call. This way, the code is more modular and easy to reuse.

s-)

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