/in/foo.cc: In function 'void read(_T&)':
/in/foo.cc:23:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if (_t == '-') _t = getchar(), flag = true; _x = _t - '0';
  ^~
/in/foo.cc:23:46: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
  if (_t == '-') _t = getchar(), flag = true; _x = _t - '0';
                                              ^~