fix gcc warning by using an unsigned int for the loop variable

12 years ago · 2531b2b3c5
parent 30b4726cab
commit 2531b2b3c5
1 changed files with 1 additions and 1 deletions
--- a/approximate-pi.c
+++ b/approximate-pi.c
@ -5,7 +5,7 @@ double approximate_pi(unsigned int steps) {
  double approximate_pi = 4.0;
  bool subtract = true;
-  for (int i = 2; i <= steps; i++) {
+  for (unsigned int i = 2; i <= steps; i++) {
    if (subtract) {
      approximate_pi -= (4.0 / (i * 2 - 1));
    } else {