1floor(3M)               Mathematical Library Functions               floor(3M)
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NAME

6       floor, floorf, floorl - floor function
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SYNOPSIS

9       c99 [ flag... ] file... -lm [ library... ]
10       #include <math.h>
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12       double floor(double x);
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15       float floorf(float x);
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18       long double floorl(long double x);
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DESCRIPTION

22       These functions compute the largest integral value not greater than x.
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RETURN VALUES

25       Upon successful completion, these functions return the largest integral
26       value not greater than x, expressed as a double, float, or long double,
27       as appropriate for the return type of the function.
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30       If x is NaN, a NaN is returned.
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33       If x is ±Inf or ±0, x is returned.
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ATTRIBUTES

36       See attributes(5) for descriptions of the following attributes:
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41       ┌─────────────────────────────┬─────────────────────────────┐
42       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
43       ├─────────────────────────────┼─────────────────────────────┤
44       │Interface Stability          │Standard                     │
45       ├─────────────────────────────┼─────────────────────────────┤
46       │MT-Level                     │MT-Safe                      │
47       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

50       ceil(3M),      feclearexcept(3M),      fetestexcept(3M),     isnan(3M),
51       math.h(3HEAD), attributes(5), standards(5)
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55SunOS 5.11                        12 Jul 2006                        floor(3M)