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comparison modules/hypotl @ 16519:52c75970f518

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New module 'hypotl'. * lib/math.in.h (hypotl): New declaration. * lib/hypotl.c: New file. * m4/hypotl.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether hypotf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_HYPOTL, HAVE_HYPOTL. * modules/math (Makefile.am): Substitute GNULIB_HYPOTL, HAVE_HYPOTL. * modules/hypotl: New file. * tests/test-math-c++.cc: Check the hypotl declaration. * doc/posix-functions/hypotl.texi: Mention the new module.
author Bruno Haible <bruno@clisp.org>
date Wed, 29 Feb 2012 15:46:25 +0100
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children 1fcd2cd248a9
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16518:68b3e785bd8f 16519:52c75970f518
1 Description:
2 hypotl() function: length of a vector in the plane.
3
4 Files:
5 lib/hypotl.c
6 m4/hypotl.m4
7 m4/mathfunc.m4
8
9 Depends-on:
10 math
11 hypot [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
12 isfinite [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
13 fabsl [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
14 frexpl [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
15 ldexpl [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
16 sqrtl [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
17 isinf [test $HAVE_HYPOTL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
18
19 configure.ac:
20 gl_FUNC_HYPOTL
21 if test $HAVE_HYPOTL = 0; then
22 AC_LIBOBJ([hypotl])
23 fi
24 gl_MATH_MODULE_INDICATOR([hypotl])
25
26 Makefile.am:
27
28 Include:
29 <math.h>
30
31 Link:
32 $(HYPOTL_LIBM)
33
34 License:
35 LGPL
36
37 Maintainer:
38 Bruno Haible