HUGE_VAL
巨量[医]VALF,巨大[医]瓦尔,巨大[医]沃尔
Defined in header | | |
---|---|---|
#define HUGE_VALF /*implementation defined*/ | | (since C++11) |
#define HUGE_VAL /*implementation defined*/ | | |
#define HUGE_VALL /*implementation defined*/ | | (since C++11) |
大HUGE_VALF
,,,HUGE_VAL
和HUGE_VALL
宏扩展为正浮点常量表达式,该表达式与浮点函数和运算符在溢出时返回的值相等,请参见math_errhandling
29%。
Constant | Explanation |
---|---|
HUGE_VALF | Expands to positive float expression that indicates overflow |
HUGE_VAL | Expands to positive double expression that indicates overflow, not necessarily representable as a float |
HUGE_VALL | Expands to positive long double expression that indicates overflow, not necessarily representable as a float or double |
在支持浮点无穷大的实现中,这些宏总是扩展到float
,,,double
,和long double
分别。
另见
INFINITY (C++11) | evaluates to positive infinity or the value guaranteed to overflow a float (macro constant) |
---|
C文件[医]瓦尔
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