Guardian Native C Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

fmax(3) Guardian Native C Library Calls Reference Manual
NAME
fmax - Determines the maximum numeric value of two floating-point numbers
LIBRARY
H-series and J-series native Guardian processes: $SYSTEM.ZDLLnnn.ZCREDLL
32-bit H-series and J-series OSS processes: /G/system/zdllnnn/zcredll
64-bit H-series and J-series OSS processes: /G/system/zdllnnn/ycredll
SYNOPSIS
#include <math.h>
double fmax(
double x,
double y
);
PARAMETERS
x Specifies a double number.
y Specifies a double number.
DESCRIPTION
The fmax() function determines the maximum numeric value of two floating-point numbers.
NaN arguments are treated as missing data. If one argument is a NaN and the other numeric, the
fmax() function returns the numeric value.
NOTES
This function is implemented only for the IEEE_float floating-point option. Applications using
this function cannot be compiled if the specified floating-point option is Tandem_float.
RETURN VALUES
Upon successful completion, the fmax() function returns the minimum numeric value of x and y.
If one argument is a NaN and the other numeric, the fmax() function returns the numeric value.
If both x and y are NaNs, the fmax( ) function returns NaN.
ERRORS
No errors are defined.
RELATED INFORMATION
Functions: fdim(3), fmaxf(3), fmaxl(3), fmin(3).
Files: math(4).
STANDARDS CONFORMANCE
This function conforms to the ISO/IEC 9899:1999 standard.
This function conforms to the IEEE Std 1003.1, 2004 Edition.
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