error: multiple definition of `decrease_seq(int, QString)'

[A Former User]

I'm trying to make header file conrain all the common functions in my application
when i include once it goes ok but when i include it in two source files it give me multiple definition error

[VRonin]

You'll have to give us a bit more context. What file is it in? do you have declaration/implementation?

[A Former User]

@VRonin I'm trying to make header file conrain all the common functions in my application
when i include once it goes ok but when i include it in two source files it give me multiple definition error

[mrjj]

@davidlabib
Hi
It seems you have the full function in the HEADER (.h) file ?
You should have like
in .h

void somefunc( int param ); // JUST the header of the function.

and in .cpp
void somefunc( int param ) {
..code..
}