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Expected an expression

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  1.  
  2. int main ()
  3. {
  4.   string op;
  5. cout << "Hi, im a calculator, what would you like to do? Enter + for addition. a for substraction. * for multiplication, / for division, ^ for raising to the order"; // rework for + -
  6.   getline (cin, op);
  7.   if (op = -) { 
  8.  
if (op = -) - this line gives me the problems.
The ) is underlined and says "expected an expression.

Which expression?
Dec 9 '11 #1
2 4177
johny10151981
1,059 1GB
study about how string work and how if statement work
Dec 9 '11 #2
Pardon me, im a retard. got it.
Dec 9 '11 #3

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