DoubleConversion.h (1017B)
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 /* A utility function that converts a string to a double independent of OS locale. */ 7 8 #ifndef MOZILLA_DOUBLECONVERSION_H 9 #define MOZILLA_DOUBLECONVERSION_H 10 11 #include "mozilla/Maybe.h" 12 #include "mozilla/Span.h" 13 14 #include <string> 15 16 namespace mozilla { 17 18 // Parses aStringSpan into a double floating point value. Always treats . as the 19 // decimal separator, regardless of OS locale. Consumes the entire string; 20 // trailing garbage is invalid. Returns Nothing() for invalid input. 21 // The implementation uses double_conversion::StringToDoubleConverter with 22 // NO_FLAGS, see double-conversion/string-to-double.h for more documentation. 23 Maybe<double> StringToDouble(Span<const char> aStringSpan); 24 25 } 26 27 #endif // MOZILLA_DOUBLECONVERSION_H