Add MaxString<__uint128_t>

Summary: For GCC 3.6+, define a template specialization for MaxString<__uint128_t>.

@override-unit-failures

Test Plan: Unit tests

Reviewed By: andrei.alexandrescu@fb.com

FB internal diff: D995290

diff --git a/folly/Conv.cpp b/folly/Conv.cpp
index 6dfede7ce6487d020974d56ed530ee0cc57662ea..4796e87ad19f464bddc617f34cca9e1509e7caaf 100644 (file)
--- a/folly/Conv.cpp
+++ b/folly/Conv.cpp
@@ -46,6 +46,12 @@ static_assert(sizeof(unsigned long long) >= 8,
               "Wrong value for MaxString<unsigned long long>::value"
               ", please update.");
 
+/* Test for GCC >= 3.6.0 */
+#if __GNUC__ > 3 || (__GNUC__ == 3 && (__GNUC_MINOR__ >= 6))
+template <> const char *const MaxString<__uint128_t>::value =
+  "340282366920938463463374607431768211455";
+#endif
+
 inline bool bool_str_cmp(const char** b, size_t len, const char* value) {
   // Can't use strncasecmp, since we want to ensure that the full value matches
   const char* p = *b;