1From 4e90f3185aea9160c28f3eaec5625b67fc0f67db Mon Sep 17 00:00:00 2001
2From: Daniel Green <ddgreen@gmail.com>
3Date: Sun, 9 Feb 2020 11:06:53 -0500
4Subject: [PATCH] Build+test bn_mp_set_double.c on more platforms
5
6Not all platforms/environments/architectures that support enough of
7IEEE 754 for the purposes of mp_set_double() actually support enough
8to legitimately define __STDC_IEC_559__, so only relying on that is
9too strict. Fixes https://github.com/libtom/libtommath/issues/159
10
11Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
12[Retrieved (and backported) from:
13https://github.com/libtom/libtommath/commit/4e90f3185aea9160c28f3eaec5625b67fc0f67db]
14---
15 demo/test.c     | 2 +-
16 bn_mp_set_double.c | 2 +-
17 2 files changed, 2 insertions(+), 2 deletions(-)
18
19diff --git a/demo/test.c b/demo/test.c
20index 998f14b3..f719709d 100644
21--- a/demo/test.c
22+++ b/demo/test.c
23@@ -522,7 +522,7 @@ static int test_mp_invmod(void)
24
25 }
26
27-#if defined(__STDC_IEC_559__) || defined(__GCC_IEC_559)
28+#if defined(__STDC_IEC_559__) || defined(__GCC_IEC_559) || defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || defined(__i386__) || defined(_M_X86) || defined(__aarch64__) || defined(__arm__)
29 static int test_mp_set_double(void)
30 {
31    int i;
32diff --git a/mp_set_double.c b/mp_set_double.c
33index 78550c8f..cdc644d9 100644
34--- a/bn_mp_set_double.c
35+++ b/bn_mp_set_double.c
36@@ -3,7 +3,7 @@
37 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
38 /* SPDX-License-Identifier: Unlicense */
39
40-#if defined(__STDC_IEC_559__) || defined(__GCC_IEC_559)
41+#if defined(__STDC_IEC_559__) || defined(__GCC_IEC_559) || defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || defined(__i386__) || defined(_M_X86) || defined(__aarch64__) || defined(__arm__)
42 mp_err mp_set_double(mp_int *a, double b)
43 {
44    uint64_t frac;
45