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Add mingw patches for fixing math functions

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Martin Storsjö authored and Martin Storsjo committed 2016-08-27 22:48:15 +03:00
1 parent d71fab8802
commit 0e847128ef
2 files changed
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patches/mingw-0005.patch
+82
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@@ -0,0 +1,82 @@
From 7f02a5261b7c02324f035b85dc75cab03796bbb4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Thu, 18 Aug 2016 14:48:26 +0300
Subject: [PATCH 1/2] Make the "softfloat" log2/log2f/exp2/exp2f call the
msvcrt log/pow functions
These work properly and won't do infinite recursion on certain values,
etc.
---
mingw-w64-crt/math/softmath/exp2.c | 4 ++--
mingw-w64-crt/math/softmath/exp2f.c | 4 ++--
mingw-w64-crt/math/softmath/log2.c | 4 ++--
mingw-w64-crt/math/softmath/log2f.c | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/mingw-w64-crt/math/softmath/exp2.c b/mingw-w64-crt/math/softmath/exp2.c
index 61e5955..0291d97 100644
--- a/mingw-w64-crt/math/softmath/exp2.c
+++ b/mingw-w64-crt/math/softmath/exp2.c
@@ -42,9 +42,9 @@
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "softmath_private.h"
+#include <math.h>
double exp2(double x)
{
- return bsd__ieee754_pow(2, x);
+ return pow(2, x);
}
diff --git a/mingw-w64-crt/math/softmath/exp2f.c b/mingw-w64-crt/math/softmath/exp2f.c
index 6dee1bb..11e279d 100644
--- a/mingw-w64-crt/math/softmath/exp2f.c
+++ b/mingw-w64-crt/math/softmath/exp2f.c
@@ -42,9 +42,9 @@
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "softmath_private.h"
+#include <math.h>
float exp2f(float x)
{
- return bsd__ieee754_powf(2, x);
+ return powf(2, x);
}
diff --git a/mingw-w64-crt/math/softmath/log2.c b/mingw-w64-crt/math/softmath/log2.c
index c35a7a3..756d8f1 100644
--- a/mingw-w64-crt/math/softmath/log2.c
+++ b/mingw-w64-crt/math/softmath/log2.c
@@ -42,9 +42,9 @@
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "softmath_private.h"
+#include <math.h>
double log2(double x)
{
- return softmath_log(x) / 0.69314718246459960938;
+ return log(x) / 0.69314718246459960938;
}
diff --git a/mingw-w64-crt/math/softmath/log2f.c b/mingw-w64-crt/math/softmath/log2f.c
index 73d9659..055d0d4 100644
--- a/mingw-w64-crt/math/softmath/log2f.c
+++ b/mingw-w64-crt/math/softmath/log2f.c
@@ -42,9 +42,9 @@
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "softmath_private.h"
+#include <math.h>
float log2f(float x)
{
- return softmath_logf(x) / 0.69314718246459960938f;
+ return logf(x) / 0.69314718246459960938f;
}
--
2.7.4