From 3877545d8c18df7b04771e790e5faf751eb51495 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Fri, 18 Mar 2016 14:05:45 -0700
Subject: Add a workaround for a buggy modff

---
 Alc/effects/reverb.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'Alc/effects')

diff --git a/Alc/effects/reverb.c b/Alc/effects/reverb.c
index 504e35b7..5ec5f6cf 100644
--- a/Alc/effects/reverb.c
+++ b/Alc/effects/reverb.c
@@ -241,6 +241,21 @@ static const ALfloat LATE_LINE_LENGTH[4] =
 static const ALfloat LATE_LINE_MULTIPLIER = 4.0f;
 
 
+#if defined(_WIN32) && !defined (_M_X64) && !defined(_M_ARM)
+/* HACK: Workaround for a modff bug in 32-bit Windows, which attempts to write
+ * a 64-bit double to the 32-bit float parameter.
+ */
+static inline float hack_modff(float x, float *y)
+{
+    double di;
+    double df = modf((double)x, &di);
+    *y = (float)di;
+    return (float)df;
+}
+#define modff hack_modff
+#endif
+
+
 /**************************************
  *  Device Update                     *
  **************************************/
-- 
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