C++ Math fpclassify()The function returns the value of type int that matches one of the macro constants, depending on the value of x.
SyntaxSuppose a number is x. Syntax would be: Parameterx: The value which is to be matched with one of the macro constants. Return valueIt returns following integer values: FP_INFINITE, FP_NAN, FP_ZERO, FP_SUBNORMAL ,FP_NORMAL. ExampleLet's see the simple example. Output: 1.0/0.0 is a infinite number In this example, fpclassify() function determines that x is a infinite number.
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