perf_stats: Resolve implicit int to double conversion error

We simply need to turn the literal argument to std::accumulate into a
double, rather than an int.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/perf_stats.cpp b/src/core/perf_stats.cpp
index d2c69d1a0..f1ae9d4df 100644
--- a/src/core/perf_stats.cpp
+++ b/src/core/perf_stats.cpp
@@ -81,7 +81,7 @@ double PerfStats::GetMeanFrametime() {
         return 0;
     }
     const double sum = std::accumulate(perf_history.begin() + IgnoreFrames,
-                                       perf_history.begin() + current_index, 0);
+                                       perf_history.begin() + current_index, 0.0);
     return sum / (current_index - IgnoreFrames);
 }