commit 7e8e207ce22a8eb6ce0148015fe3f560ac1e48b5
author Dmitry Rozhkov <dmitry.rojkov@gmail.com> Mon Sep 07 10:40:03 2020 +0300
committer GitHub <noreply@github.com> Mon Sep 07 09:40:03 2020 +0200
tree 286e912e011a288aafafc6ed55ce2a6793ebbb7e
parent 09b0992b6acb7faa6fd3b23f9bc036ea117230fc

Fix clang-10 compilation issue (#839)

clang-10 throws the following error:
In file included from external/org_brotli/c/enc/bit_cost.c:9:
external/org_brotli/c/enc/./bit_cost.h:48:16: error: implicit conversion
from 'size_t' (aka 'unsigned long') to 'double' may lose precision
[-Werror,-Wimplicit-int-float-conversion]
  if (retval < sum) {
             ~ ^~~
1 error generated.

Make the conversion explicit.

c/enc/bit_cost.h

diff --git a/c/enc/bit_cost.h b/c/enc/bit_cost.h
index 6586469..31838f1 100644
--- a/c/enc/bit_cost.h
+++ b/c/enc/bit_cost.h
@@ -45,7 +45,7 @@
     const uint32_t* population, size_t size) {
   size_t sum;
   double retval = ShannonEntropy(population, size, &sum);
-  if (retval < sum) {
+  if (retval < (double)sum) {
     /* At least one bit per literal is needed. */
     retval = (double)sum;
   }