28
Numerics library
[numerics]
28.7
Mathematical functions for floating-point types
[c.math]
28.7.5
Classification / comparison functions
[c.math.fpclass]
1
#
The classification / comparison functions behave the same as the C macros with the corresponding names defined in the C standard library
.
See also:
ISO/IEC 9899:2018, 7.12.3, 7.12.4