X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=folly%2Ftest%2FFBStringTest.cpp;h=c2110d1f7830c1d0970cc4be10de0ef088d544d6;hb=ce97926001344be626e092d24b6c977447d8c4a8;hp=2c867dd1d230b8d283a815a6c14a698891960771;hpb=5699919fdcb518d9974a93c7f1791d3e8ac2a544;p=folly.git

diff --git a/folly/test/FBStringTest.cpp b/folly/test/FBStringTest.cpp
index 2c867dd1..c2110d1f 100644
--- a/folly/test/FBStringTest.cpp
+++ b/folly/test/FBStringTest.cpp
@@ -208,7 +208,8 @@ template <class String> void clause11_21_4_2_lprime(String & test) {
 }
 template <class String> void clause11_21_4_2_m(String & test) {
   // Assignment from char
-  test = random('a', 'z');
+  using value_type = typename String::value_type;
+  test = random(static_cast<value_type>('a'), static_cast<value_type>('z'));
 }
 template <class String> void clause11_21_4_2_n(String & test) {
   // Assignment from initializer_list<char>