/in/foo.c: In function 'main':
/in/foo.c:7:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  while (a > 0); {
  ^~~~~
/in/foo.c:7:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
  while (a > 0); {
                 ^
/in/foo.c:12:2: error: expected declaration or statement at end of input
  return 0;
  ^~~~~~