From 02c5091c905964b529020070b4b24616d8a3fbd8 Mon Sep 17 00:00:00 2001
From: Michael Wegner <michael_wegner@apple.com>
Date: Sat, 8 Sep 2018 15:36:00 -0700
Subject: cmCTestRunTest: Simplify number width computation

Use a real logarithm implementation.
---
 Source/CTest/cmCTestRunTest.h | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/Source/CTest/cmCTestRunTest.h b/Source/CTest/cmCTestRunTest.h
index 7e80157..8e24834 100644
--- a/Source/CTest/cmCTestRunTest.h
+++ b/Source/CTest/cmCTestRunTest.h
@@ -5,6 +5,7 @@
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
+#include <cmath>
 #include <set>
 #include <stddef.h>
 #include <string>
@@ -118,14 +119,7 @@ private:
 
 inline int getNumWidth(size_t n)
 {
-  int numWidth = 1;
-  if (n >= 10) {
-    numWidth = 2;
-  }
-  if (n >= 100) {
-    numWidth = 3;
-  }
-  return numWidth;
+  return static_cast<int>(std::log10(n)) + 1;
 }
 
 #endif
-- 
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