Error expected primary expression

Error: expected primary-expression before ‘else’. Код калькулятора на c++. Error: expected ‘;’ before ‘)’ token. Expected expression before token ). Ошибка expected.	If in if c++. Коды для ретро студии. Error expected primary expression. Expected primary expression before \|\| token c++ это. Error expected primary expression.
Expected primary-expression before token. Программа калькулятор на с++. If else if else c++. Лог ошибок cpp. -pedantic-errors.	Primary expression c++. Error expected primary expression. Expected primary-expression before 'const'. If esle c++. Error expected primary expression.
Expected primary-expression before. Коды retro tds. Expected primary-expression. Error: expected primary-expression before ‘else’. Error expected primary expression.
Error expected primary expression. Error: expected primary-expression before ‘)’ token. Error expected primary expression. Predicted expected error. Expected expression before token ).	Программный код калькулятора. Токен ардуино. Expected expression before token ). C++ expected ' ;' before ]. Error expected primary expression.
Error expected primary expression. Ретро-кода. Was not declared in this scope. Функция if в ардуино. Калькулятор на c++.	Gcc. Expected expression before token ). Expected primary expression before \|\| token c++ это. Expected primary-expression. Expected primary expression before \|\| token c++ это.
Error expected primary expression. Expected ';' before '}' token. Error expected primary expression. Error expected primary expression. Error expected primary expression.	Error expected primary expression. Error expected primary expression. If else c++. Error expected primary expression. Gcc delete debug symbols.
Expected primary-expression. Error expected primary expression. Expected ';' before '}' token. Primary-expression. Tolower в си.
Expected primary-expression before 'const'. Primary expression c++. Error expected primary expression. [error] expected identifier before '(' token c++. Error: expected ‘;’ before ‘)’ token.	Expected primary-expression before token. Expected expression before token ). Ошибка expected. Error expected primary expression. Switch case ардуино.
Error expected primary expression. Коды в ретро студио. Ошибка expected. Expected primary-expression before token. Лог ошибок cpp.	Error expected primary expression. Error expected primary expression. Expected primary-expression before 'const'. Программный код калькулятора. Expected primary-expression.
Error expected primary expression. Лог ошибок cpp. Gcc. Error expected primary expression. Expected primary-expression.	Error expected primary expression. Expected primary expression before \|\| token c++ это. Программный код калькулятора. Gcc delete debug symbols. Expected ';' before '}' token.
Switch case ардуино. Expected primary-expression. Error expected primary expression. Expected primary-expression before token. Коды retro tds.	Expected primary expression before \|\| token c++ это. Error expected primary expression. Error expected primary expression. Ошибка expected. Error expected primary expression.