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

isless(3) Guardian Native C Library Calls Reference Manual
NAME
isless -Testsifx is less than y
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>
int isless(
floating-type x,
floating-type y);
PARAMETERS
floating-type Specifies the floating-type of x.
x Specifies a value of type floating-type.
floating-type Specifies the floating-type of y.
y Specifies a value of type floating-type.
DESCRIPTION
The isless() macro determines whether its first argument is less than its second argument. The
value of the isless() macro is always equal to (x)<(y); however, unlike (x)<(y), the isless()
macro does not raise the invalid exception when x and y are unordered.
The arguments must be of floating type.
NOTES
This macro is implemented only for the IEEE_float floating-point option. Applications using
this macro cannot be compiled if the specified floating-point option is Tandem_float.
RETURN VALUES
Upon successful completion, the isless() macro returns the value of (x)<(y). If x or y is NaN, 0
(zero) is returned.
ERRORS
No errors are defined.
RELATED INFORMATION
Functions: isgreater(3), isgreaterequal(3), islessequal(3), islessgreater(3), isunordered(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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