diff options
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_helpers.cc')
| -rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_helpers.cc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_helpers.cc b/src/google/protobuf/compiler/cpp/cpp_helpers.cc index 070fde55..595aeaeb 100644 --- a/src/google/protobuf/compiler/cpp/cpp_helpers.cc +++ b/src/google/protobuf/compiler/cpp/cpp_helpers.cc @@ -227,7 +227,15 @@ string DefaultValue(const FieldDescriptor* field) { case FieldDescriptor::CPPTYPE_DOUBLE: return SimpleDtoa(field->default_value_double()); case FieldDescriptor::CPPTYPE_FLOAT: - return SimpleFtoa(field->default_value_float()); + { + // If floating point value contains a period (.) or an exponent (either + // E or e), then append suffix 'f' to make it a floating-point literal. + string float_value = SimpleFtoa(field->default_value_float()); + if (float_value.find_first_of(".eE") != string::npos) { + float_value.push_back('f'); + } + return float_value; + } case FieldDescriptor::CPPTYPE_BOOL: return field->default_value_bool() ? "true" : "false"; case FieldDescriptor::CPPTYPE_ENUM: |