floor(), floorf() round to largest integral value not greater than x	Function
	SYNOPSIS DESCRIPTION PARAMETERS RETURN VALUES CONFORMANCE MULTITHREAD SAFETY LEVEL PORTING ISSUES AVAILABILITY SEE ALSO

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SYNOPSIS

#include <math.h>

double floor(double x)

float floorf(float x)

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DESCRIPTION

The floor() and floorf() functions return the largest integral value less than or equal to x.

The floorf() function is a single-precision version of function().

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PARAMETERS

x 

Is the number whose floor to compute.

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RETURN VALUES

The floor() function returns the largest integral value not greater than x, expressed as a double. If x is NaN, NaN is returned. If the return value would overflow, -HUGE_VAL is returned.

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CONFORMANCE

floor(): ANSI/ISO 9899-1990

floorf(): PTC MKS Toolkit UNIX APIs extension

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MULTITHREAD SAFETY LEVEL

MT-Safe.

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PORTING ISSUES

None.

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AVAILABILITY

PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

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SEE ALSO

Functions:

abs(), ceil(), fabs(), ieee(), math(), rint()

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PTC MKS Toolkit 10.5 Documentation Build 40.