fpclassify man page on Minix

fpclassify man page on Minix

Man page or keyword search:
man Server 6208 pages
apropos Keyword Search (all sections)
Output format

FPCLASSIFY(3)		 BSD Library Functions Manual		 FPCLASSIFY(3)

NAME
     fpclassify — classify real floating type

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <math.h>

     int
     fpclassify(real-floating x);

DESCRIPTION
     The fpclassify() macro performs classification of its argument x.	An
     argument represented in a format wider than its semantic type is con‐
     verted to its semantic type first.	 The classification is then based on
     the type of the argument.

   IEEE 754
	   FP_INFINITE	    infinity, either positive or negative
	   FP_NAN	    not-a-number (“NaN”)
	   FP_NORMAL	    normal
	   FP_SUBNORMAL	    subnormal
	   FP_ZERO	    zero

   VAX
	   FP_ROP	    reserved operand (“ROP”)
	   FP_DIRTYZERO	    dirty zero
	   FP_NORMAL	    finite
	   FP_ZERO	    true zero

RETURN VALUES
     The fpclassify() macro returns the value of the number classification
     macro appropriate to its argument x as described above.

ERRORS
     No errors are defined.

SEE ALSO
     isfinite(3), isnormal(3), math(3), signbit(3)

STANDARDS
     The fpclassify() macro conforms to ISO/IEC 9899:1999 (“ISO C99”).

BSD			       January 14, 2004				   BSD

[top]

List of man pages available for Minix

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]

Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................

Vote for polarhome