commit 878bf94a21ed6cc43fad750c0dd4ff9b5f68816c
author venkat sanampudi <sanampudi.venkatarao@ittiam.com> Tue Nov 10 13:37:25 2020 +0530
committer Yunqing Wang <yunqingwang@google.com> Tue Nov 10 18:39:49 2020 +0000
tree c2065402556080413aa99cf9913504ea189492d7
parent 96d81f82b46ec82334abb5b40260d4ba62b05da7

Rename the sign() in mathutils.h properly

Renamed the function name sign() to apply_sign()to justify the
functionality.

Change-Id: Ib531b5d148050d92b4bd99d620a0ddce16ab00de

av1/encoder/mathutils.h

diff --git a/av1/encoder/mathutils.h b/av1/encoder/mathutils.h
index 64f9361..576de07 100644
--- a/av1/encoder/mathutils.h
+++ b/av1/encoder/mathutils.h
@@ -114,7 +114,7 @@
 // svdcmp
 // Adopted from Numerical Recipes in C
 
-static INLINE double sign(double a, double b) {
+static INLINE double apply_sign(double a, double b) {
   return ((b) >= 0 ? fabs(a) : -fabs(a));
 }
 
@@ -150,7 +150,7 @@
           s += u[k][i] * u[k][i];
         }
         f = u[i][i];
-        g = -sign(sqrt(s), f);
+        g = -apply_sign(sqrt(s), f);
         h = f * g - s;
         u[i][i] = f - g;
         for (j = l; j < n; j++) {
@@ -171,7 +171,7 @@
           s += u[i][k] * u[i][k];
         }
         f = u[i][l];
-        g = -sign(sqrt(s), f);
+        g = -apply_sign(sqrt(s), f);
         h = f * g - s;
         u[i][l] = f - g;
         for (k = l; k < n; k++) rv1[k] = u[i][k] / h;
@@ -269,7 +269,7 @@
       h = rv1[k];
       f = ((y - z) * (y + z) + (g - h) * (g + h)) / (2.0 * h * y);
       g = pythag(f, 1.0);
-      f = ((x - z) * (x + z) + h * ((y / (f + sign(g, f))) - h)) / x;
+      f = ((x - z) * (x + z) + h * ((y / (f + apply_sign(g, f))) - h)) / x;
       c = s = 1.0;
       for (j = l; j <= nm; j++) {
         i = j + 1;