Make bm_min_iters a 32-bit flag

Summary:
The benchmark API only supports `unsigned int` as the iteration number, so this being 64-bit means it has to be truncated for no reason.
This change gets us closer to being able to enable MSVC's implicit truncation warnings.

Reviewed By: yfeldblum

Differential Revision: D4281264

fbshipit-source-id: 27397e3f23bace20f3cc457665ea6f21bf994da5

diff --git a/folly/Benchmark.cpp b/folly/Benchmark.cpp
index b09faf2eec011697634d3fb4e2d6a34a12d77635..060c4bf4de0b3dbd489fa37cb716ca49c14371ba 100644 (file)
--- a/folly/Benchmark.cpp
+++ b/folly/Benchmark.cpp
@@ -45,7 +45,7 @@ DEFINE_int64(
     100,
     "Minimum # of microseconds we'll accept for each benchmark.");
 
-DEFINE_int64(
+DEFINE_int32(
     bm_min_iters,
     1,
     "Minimum # of iterations we'll try for each benchmark.");