Thread: Error: cannot call member function without object

We have been stuck on this for an hour now.

We're getting an error:

error: cannot call member function 'int GameEvent::makeargv(const char*, const char*, char***)' without object

Here's our code:

Code:

GameEvent* GameEvent::fromString(const Game &g, const string &s){
  const char *inputHold=s.c_str();
  int numArgs=makeargv(inputHold, " ", &buffer);

}

We have also tried:

Code:

GameEvent* GameEvent::fromString(const Game &g, const string &s){
  int sLength=s.size();
    	char* inputHold;
	string holder=s;
	inputHold=(char*)malloc(sizeof(char)*sLength);
	int i;
	for (i=0;i<sLength; i++) {
		inputHold[i]=s[i];
		cout <<inputHold[i];
	}	
   int numArgs=makeargv(inputHold, " ", &buffer);
}

The declaration for makeargv is:

Code:

int makeargv(const char *s, const char *delimiters, char ***argvp)

Any help would be great. Thank you.

Is fromString a static function? I can't seem to duplicate your error.

it is static

Then you've got some sort of design problem I guess. (A static function surely can't call a nonstatic member function, since you have to call a (normal) member function from an object.) (EDIT: I suppose you could pass an object into your static function, but at that point we're defeating the purpose I think.)

I've looked and asked else where, and I just can't find a solution. Is it the makeargv that's the problem?

Originally Posted by TIMBERings

I've looked and asked else where, and I just can't find a solution. Is it the makeargv that's the problem?

I guess you could look at it that way. You have (hopefully) made a deliberate design choice to write a static function -- and that comes at a cost. Static functions are somewhat crippled in terms of what parts of the class you can access -- essentially, you can't access anything that belongs to an instance of the class, only those elements that belong to the class-as-a-whole (i.e., the other static elements).