floorf(3m) [opensolaris man page]
floor(3M) Mathematical Library Functions floor(3M) NAME
floor, floorf, floorl - floor function SYNOPSIS
c99 [ flag... ] file... -lm [ library... ] #include <math.h> double floor(double x); float floorf(float x); long double floorl(long double x); DESCRIPTION
These functions compute the largest integral value not greater than x. RETURN VALUES
Upon successful completion, these functions return the largest integral value not greater than x, expressed as a double, float, or long double, as appropriate for the return type of the function. If x is NaN, a NaN is returned. If x is +-Inf or +-0, x is returned. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
ceil(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 floor(3M)
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floor(3M) Mathematical Library Functions floor(3M) NAME
floor, floorf, floorl - floor function SYNOPSIS
cc [ flag... ] file... -lm [ library... ] #include <math.h> double floor(double x); float floorf(float x); long double floorl(long double x); DESCRIPTION
These functions compute the largest integral value not greater than x. RETURN VALUES
Upon successful completion, these functions return the largest integral value not greater than x, expressed as a double, float, or long double, as appropriate for the return type of the function. If x is NaN, a NaN is returned. If x is +-Inf or +-0, x is returned. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
ceil(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5) SunOS 5.10 1 Sep 2002 floor(3M)