UC Library Extensions UnderC comes with a pocket implementation of the standard C++ libraries, which is a reasonably faithful subset. This documentation describes those UnderC functions and classes which are not part of the C++ standard. UC

编译原理实验 表达式翻译器:一个中缀表达式到后缀表达式的翻译器 表达式文法及其翻译模式定义如下： expr  expr + term {print(‘+’)} | expr - term {print(‘-’)}| term term  term * factor {print(‘*’)} | term / factor {print(‘/’)} | factor factor  ( expr ) | id {print(id.