August 2021
Intermediate to advanced
450 pages
6h 57m
Chinese
Content preview from C++程序设计语言（第4部分：标准库）（原书第4版）
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40.3 标准数学函数
在<cmath>中我们可以找到通常被称为标准数学函数（Standard Mathematical Function）的组件：
这些函数都有接受float、double、long double和complex（见40.4节）参数的版本。对每个版本，返回类型与参数类型一致。
为报告定义域错误，这些函数会将来自<cerrno>的errno设置为EDOM，对值域错误，会将errno设置为ERANGE。例如：
由于历史原因，少数数学函数在<cstdlib>中而不是<cmath>中。
存在l*（）版本的原因是C不支持重载。ldiv（）函数的结果分别是div_t、ldiv_t和lldiv_t struct。这些struct都有成员quot（保存商）和rem（保存余数），其类型是由具体C++实现定义的。 ...
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