fpclassify
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Template:c/numeric/math/sidebar
| Defined in header <math.h>
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| #define fpclassify(arg) /* implementation defined */ |
(since C99) | |
Categorizes floating point value arg into the following categories: zero, subnormal, normal, infinite, NAN, or implementation-defined category. The macro returns an integral value.
Parameters
| arg | - | floating point value |
Return value
One of FP_INFINITE, FP_NAN, FP_NORMAL, FP_SUBNORMAL, FP_ZERO or implementation-defined type, specifying the category of arg.
See also
| (C99) |
checks if the given number has finite value (function) |
| (C99) |
checks if the given number is infinite (function) |
| (C99) |
checks if the given number is NaN (function) |
| (C99) |
checks if the given number is normal (function) |
| C++ documentation for fpclassify
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