From bb85f7dde4195bfc0fca9e9c7c2eed0f8694203c Mon Sep 17 00:00:00 2001
From: Antoine Soulier <asoulier@google.com>
Date: Thu, 6 Jun 2024 17:21:46 -0700
Subject: [PATCH] math: Remove usage of Infinity that leads to undefined
 beahior using fast-math

---
 src/fastmath.h | 1 +
 src/sns.c      | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/fastmath.h b/src/fastmath.h
index c61ae64..86cbdfa 100644
--- a/src/fastmath.h
+++ b/src/fastmath.h
@@ -20,6 +20,7 @@
 #define __LC3_FASTMATH_H
 
 #include <stdint.h>
+#include <float.h>
 #include <math.h>
 
 
diff --git a/src/sns.c b/src/sns.c
index 0b5aa14..85660d0 100644
--- a/src/sns.c
+++ b/src/sns.c
@@ -547,12 +547,12 @@ LC3_HOT static void quantize(const float *scf, int lfcb_idx, int hfcb_idx,
     /* --- Determe shape & gain index ---
      * Search the Mean Square Error, within (shape, gain) combinations */
 
-    float mse_min = INFINITY;
+    float mse_min = FLT_MAX;
     *shape_idx = *gain_idx = 0;
 
     for (int ic = 0; ic < 4; ic++) {
         const struct lc3_sns_vq_gains *cgains = lc3_sns_vq_gains + ic;
-        float cmse_min = INFINITY;
+        float cmse_min = FLT_MAX;
         int cgain_idx = 0;
 
         for (int ig = 0; ig < cgains->count; ig++) {