/in/foo.cc: In function 'int read()':
/in/foo.cc:46:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while(ch>='0' && ch<='9')
     ^~~~~
/in/foo.cc:48:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
  return x*f;
  ^~~~~~