Down-integrate from internal code base.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/google/protobuf/io/strtod.h b/src/google/protobuf/io/strtod.h
index c2efc8d3..f56e41c8 100644
--- a/src/google/protobuf/io/strtod.h
+++ b/src/google/protobuf/io/strtod.h
@@ -43,6 +43,11 @@ namespace io {
 // uses a dot as the decimal separator.
 double NoLocaleStrtod(const char* str, char** endptr);
 
+// Casts a double value to a float value. If the value is outside of the
+// representable range of float, it will be converted to positive or negative
+// infinity.
+float SafeDoubleToFloat(double value);
+
 }  // namespace io
 }  // namespace protobuf