From 5e79e0292bfb03f40e43379fd92581ad8eae9cb8 Mon Sep 17 00:00:00 2001 From: Tulio Magno Quites Machado Filho Date: Wed, 20 Jun 2018 18:15:06 -0300 Subject: Add a generic significand implementation Create a template for significand. * math/Makefile (libm-calls): Move s_significandF to... (gen-libm-calls): ... here. * math/s_significand_template.c: New file. * math/s_significand.c: Removed. * math/s_significandf.c: Removed. * math/s_significandl.c: Removed. * sysdeps/ieee754/ldbl-opt/s_significand.c: Removed. * sysdeps/ieee754/ldbl-opt/s_significandl.c: Removed. Signed-off-by: Tulio Magno Quites Machado Filho --- math/s_significand_template.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 math/s_significand_template.c (limited to 'math/s_significand_template.c') diff --git a/math/s_significand_template.c b/math/s_significand_template.c new file mode 100644 index 0000000..0c5ad8d --- /dev/null +++ b/math/s_significand_template.c @@ -0,0 +1,33 @@ +/* Return the mantissa of a floating-point number. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* + * significand(x) computes just + * scalb(x, (FLOAT) - ilogb(x)), + * for exercising the fraction-part(F) IEEE 754-1985 test vector. + */ + +#include +#include + +FLOAT +M_DECL_FUNC (__significand) (FLOAT x) +{ + return M_SUF (__ieee754_scalb) (x,(FLOAT) - M_SUF (__ilogb) (x)); +} +declare_mgen_alias (__significand, significand) -- cgit v1.1