Thread: ltoa causing seg fault!

Hi, i am trying to convert a long integer to a string in hex format, here is what i have at the moment:

Code:

Parameters *executeInstruction(Parameters *params, char memory[8192][9], long opr, long opc, char *line, int trace){

char *s;

//.....blah blah blah other boring irrelevant code here.....

s = ltoa(params->a, s, 16); //SEG FAULTS HERE

}

Parameters is a struct i made, 'a' is a field in that struct of type long. Is there anything blindingly obvious i have missed here or is this going to be an annoying one?
thanks!

Are you sure that 'char *s' points to a valid memory location? Just declaring a function parameter an array won't actually allocate space for it.

char memory[8192][9] is an array of arrays, not an array, I hope you know that.

Its meant to be an array of strings, so a char[][] right?
Also i have another problem, under gcc in windows this compiles fine but under gcc in linux i get an error: undefined reference to 'ltoa'

any ideas?

Maybe because it is not a standard function and you have enabled ansi conformance? Or it is not in your library on Linux.

That's what snprintf is for.