[Dev-C++] endless loop

[Erik S. <esc...@gm...>]

can someone explain to me why this loop is infinite?

for(int i=eq_unsplit.find("=");i<eq_unsplit.length();i++){
			
	if(eq_unsplit[i]=='x' || eq_unsplit[i]=='y' || eq_unsplit[i]=='z'){
				
		//returns the location before i of any character that is not a number
		prev=previous_non_numeric_location(eq_unsplit,i);
					
		half[0]=half[0]+"-"+eq_unsplit.substr(prev+1,i);
		half[1]=eq_unsplit.substr(i,eq_unsplit.length())+"-0";
					
		eq_unsplit=half[0]+half[1];
				
	}
			
}
		
prev=int

eq_unsplit=string

half[0] and half[1]= string[2]

everything else should be self explanitory