std::isfinite 定义于头文件<cmath> boolisfinite(floatarg); (1)(C++11 起) boolisfinite(doublearg); (2)(C++11 起) boolisfinite(longdoublearg); (3)(C++11 起) boolisfinite(IntegralType arg); (4)(C++11 起) 1-3)确定给定的浮点数arg是否拥有有限值,即它是正规、非正规或零,但不是无穷...
定义于头文件 <cmath> bool isfinite( float arg ); (1) (C++11 起) bool isfinite( double arg ); (2) (C++11 起) bool isfinite( long double arg ); (3) (C++11 起) bool isfinite( IntegralType arg ); (4) (C++11 起) 1-3) 确定给定的浮点数 arg 是否拥有有限值,即它是正规、...
定义于头文件 <cmath> bool isfinite( float arg ); (1) (C++11 起) bool isfinite( double arg ); (2) (C++11 起) bool isfinite( long double arg ); (3) (C++11 起) bool isfinite( IntegralType arg ); (4) (C++11 起) 1-3) 确定给定的浮点数 arg 是否拥有有限值,即它是...
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