foo.cc: In function 'void read(int&)':
foo.cc:13:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   13 |   for(c=getchar();c<'0'||c>'9';c=getchar());  x=x+c-'0';
      |   ^~~
foo.cc:13:47: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   13 |   for(c=getchar();c<'0'||c>'9';c=getchar());  x=x+c-'0';
      |                                               ^

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