Compilare: main.cpp: In member function 'InParser& InParser::operator>>(char&)': main.cpp:76:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 76 | while(n = read_ch() && (n < 'A' || 'Z' < n)); | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:76:13: warning: this 'while' clause does not guard... [-Wmisleading-indentation] 76 | while(n = read_ch() && (n < 'A' || 'Z' < n)); | ^~~~~ main.cpp:77:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while' 77 | return *this; | ^~~~~~