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[metaconfig.git] / U / perl / d_fpclass.U
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1?RCS: $Id$
2?RCS:
3?RCS: Copyright (c) 2000 Jarkko Hietaniemi
4?RCS:
5?RCS: You may distribute under the terms of either the GNU General Public
6?RCS: License or the Artistic License, as specified in the README file.
7?RCS:
8?MAKE:d_fpclass: Inlibc
9?MAKE: -pick add $@ %<
10?S:d_fpclass:
11?S: This variable conditionally defines the HAS_FPCLASS symbol, which
12?S: indicates to the C program that the fpclass() routine is available.
13?S:.
14?C:HAS_FPCLASS:
15?C: This symbol, if defined, indicates that the fpclass routine is
5e6a904a 16?C: available to classify doubles. Available for example in Solaris/SVR4.
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17?C: The returned values are defined in <ieeefp.h> and are:
18?C:
19?C: FP_SNAN signaling NaN
20?C: FP_QNAN quiet NaN
21?C: FP_NINF negative infinity
22?C: FP_PINF positive infinity
23?C: FP_NDENORM negative denormalized non-zero
24?C: FP_PDENORM positive denormalized non-zero
25?C: FP_NZERO negative zero
26?C: FP_PZERO positive zero
27?C: FP_NNORM negative normalized non-zero
28?C: FP_PNORM positive normalized non-zero
29?C:.
30?H:#$d_fpclass HAS_FPCLASS /**/
31?H:.
32?LINT:set d_fpclass
33: see if fpclass exists
34set fpclass d_fpclass
35eval $inlibc
36