typedef struct {char *name; int min_arg; int max_arg; char type; char *encoding;} Instruction;

Instruction *createInstruction(char *line)
{
        Instruction *x = (Instruction *)malloc(sizeof(Instruction));
        return x;
}

char buff[100];

Table *maketable(FILE *input) {
while (fscanf(input, "%s", buff) != EOF) {
                Instruction *foo = createinstruction(&buff); // This is line 173
                addtotable(mytable, foo);
	}
}