/in/foo.c: In function 'insert':
/in/foo.c:40:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(i=n-1;i>=0;i--)
  ^~~
/in/foo.c:46:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   a[i+1]=b;
   ^