folly: allow folly::init to build on systems without the symbolizer (macOS)

[folly.git] / folly / Format-inl.h

diff --git a/folly/Format-inl.h b/folly/Format-inl.h
index 77df9e20640102f4734e45f31815fd5c60e9d6c4..d2a38c0ed02a6914c03f763f6edbaeb7e9b1c8ee 100644 (file)
--- a/folly/Format-inl.h
+++ b/folly/Format-inl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Facebook, Inc.
+ * Copyright 2016 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@
 #include <folly/Exception.h>
 #include <folly/FormatTraits.h>
 #include <folly/Traits.h>
+#include <folly/portability/Windows.h>
 
 // Ignore -Wformat-nonliteral warnings within this file
 #pragma GCC diagnostic push
@@ -443,7 +444,7 @@ class FormatValue<
     char sign;
     if (std::is_signed<T>::value) {
       if (folly::is_negative(val_)) {
-        uval = static_cast<UT>(-val_);
+        uval = -static_cast<UT>(val_);
         sign = '-';
       } else {
         uval = static_cast<UT>(val_);