/in/foo.cc: In function 'int read()':
/in/foo.cc:15:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while(ch<='9'&&ch>='0') x=x*10+ch-'0',ch=gc();return x;
     ^~~~~
/in/foo.cc:15:51: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
     while(ch<='9'&&ch>='0') x=x*10+ch-'0',ch=gc();return x;
                                                   ^~~~~~