add missing header for std::tolower

2024-03-22 13:11:17 +08:00 · 2017-09-13 11:03:18 -04:00 · 2017-09-13 11:03:18 -04:00 · 4c2c7a5859
commit 4c2c7a5859
parent b2adee9fd3
1 changed files with 1 additions and 0 deletions
--- a/source/detail/number_format/number_formatter.cpp
+++ b/source/detail/number_format/number_formatter.cpp
@ -22,6 +22,7 @@
 // @author: see AUTHORS file

 #include <algorithm>
+#include <cctype>
 #include <cmath>

 #include <detail/default_case.hpp>