Use explicit for more type safety

diff --git a/ext/intl/calendar/calendar_methods.cpp b/ext/intl/calendar/calendar_methods.cpp
index 8ed3da23a9cddcca2d84f3f0aeef961e77f8c9a8..8183ab175c3fa4d121d3f3d96a718047a8a598de 100644 (file)
--- a/ext/intl/calendar/calendar_methods.cpp
+++ b/ext/intl/calendar/calendar_methods.cpp
@@ -91,7 +91,7 @@ U_CFUNC PHP_FUNCTION(intlcal_create_instance)
 class BugStringCharEnumeration : public StringEnumeration
 {
 public:
-       BugStringCharEnumeration(UEnumeration* _uenum) : uenum(_uenum) {}
+       explicit BugStringCharEnumeration(UEnumeration* _uenum) : uenum(_uenum) {}
 
        ~BugStringCharEnumeration()
        {