# islessgreater(3m) [sunos man page]

islessgreater(3M) Mathematical Library Functions islessgreater(3M)NAME

islessgreater - test if x is less than or greater than ySYNOPSIS

#include <math.h> int islessgreater(real-floating x, real-floating y);DESCRIPTION

The islessgreater() macro determines whether its first argument is less than or greater than its second argument. The islessgreater(x, y) macro is similar to (x) < (y) || (x) > (y); however, islessgreater(x, y) does not raise the invalid floating-point exception when x and y are unordered (nor does it evaluate x and y twice).RETURN VALUES

Upon successful completion, the islessgreater() macro returns the value of (x) < (y) || (x) > (y). If x or y is NaN, 0 is returned.ERRORS

No errors are defined.USAGE

The relational and equality operators support the usual mathematical relationships between numeric values. For any ordered pair of numeric values, exactly one of the relationships (less, greater, and equal) is true. Relational operators can raise the invalid floating-point exception when argument values are NaNs. For a NaN and a numeric value, or for two NaNs, just the unordered relationship is true. This macro is a quiet (non-floating-point exception raising) version of a relational operator. It facilitates writing efficient code that accounts for quiet NaNs without suffering the invalid floating-point exception. In the SYNOPSIS section, real-floating indicates that the argument is an expression of real-floating type.ATTRIBUTES

See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+SEE ALSO

isgreater(3M), isgreaterequal(3M), isless(3M), islessequal(3M), isunordered(3M), math.h(3HEAD), attributes(5), standards(5)SunOS 5.101 Nov 2003 islessgreater(3M)

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isless(3M) Mathematical Library Functions isless(3M)NAME

isless - test if x is less than ySYNOPSIS

c99 [ flag... ] file...[ library... ] #include <math.h> int isless(real-floating x, real-floating y);-lmDESCRIPTION

The isless() macro determines whether its first argument is less than its second argument. The value of isless(x, y) is equal to (x) < (y); however, unlike (x) < (y), isless(x, y) does not raise the invalid floating-point exception when x and y are unordered.RETURN VALUES

Upon successful completion, the isless() macro returns the value of (x) < (y). If x or y is NaN, 0 is returned.ERRORS

No errors are defined.USAGE

The relational and equality operators support the usual mathematical relationships between numeric values. For any ordered pair of numeric values, exactly one of the relationships (less, greater, and equal) is true. Relational operators can raise the invalid floating-point exception when argument values are NaNs. For a NaN and a numeric value, or for two NaNs, just the unordered relationship is true. This macro is a quiet (non-floating-point exception raising) version of a relational operator. It facilitates writing efficient code that accounts for quiet NaNs without suffering the invalid floating-point exception. In the SYNOPSIS section, real-floating indicates that the argument is an expression of real-floating type.ATTRIBUTES

See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+SEE ALSO

isgreater(3M), isgreaterequal(3M), islessequal(3M), islessgreater(3M), isunordered(3M), math.h(3HEAD), attributes(5), standards(5)SunOS 5.1112 Jul 2006 isless(3M)