54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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// A locale-independent version of strtod(), used to parse floating
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// point default values in .proto files, where the decimal separator
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// is always a dot.
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#ifndef GOOGLE_PROTOBUF_IO_STRTOD_H__
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#define GOOGLE_PROTOBUF_IO_STRTOD_H__
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#include <string>
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// Must be included last.
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#include "google/protobuf/port_def.inc"
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namespace google {
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namespace protobuf {
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namespace io {
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// ----------------------------------------------------------------------
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// SimpleDtoa()
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// SimpleFtoa()
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// Description: converts a double or float to a string which, if
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// passed to NoLocaleStrtod(), will produce the exact same original double
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// (except in case of NaN; all NaNs are considered the same value).
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// We try to keep the string short but it's not guaranteed to be as
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// short as possible.
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//
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// Return value: string
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// ----------------------------------------------------------------------
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PROTOBUF_EXPORT std::string SimpleDtoa(double value);
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PROTOBUF_EXPORT std::string SimpleFtoa(float value);
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// A locale-independent version of the standard strtod(), which always
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// uses a dot as the decimal separator.
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PROTOBUF_EXPORT double NoLocaleStrtod(const char* str, char** endptr);
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// Casts a double value to a float value. If the value is outside of the
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// representable range of float, it will be converted to positive or negative
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// infinity.
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PROTOBUF_EXPORT float SafeDoubleToFloat(double value);
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} // namespace io
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} // namespace protobuf
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} // namespace google
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#include "google/protobuf/port_undef.inc"
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#endif // GOOGLE_PROTOBUF_IO_STRTOD_H__
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