mirror of https://gitee.com/bigwinds/arangodb
210 lines
9.3 KiB
C++
210 lines
9.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_BASICS_CONVERSIONS_H
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#define ARANGODB_BASICS_CONVERSIONS_H 1
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#include "Basics/Common.h"
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////////////////////////////////////////////////////////////////////////////////
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/// @brief converts a single hex to an integer
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////////////////////////////////////////////////////////////////////////////////
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int TRI_IntHex(char ch, int errorValue);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to double from string
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////////////////////////////////////////////////////////////////////////////////
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double TRI_DoubleString(char const* str);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to int32 from string
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////////////////////////////////////////////////////////////////////////////////
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int32_t TRI_Int32String(char const* str);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to int32 from string with given length
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////////////////////////////////////////////////////////////////////////////////
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int32_t TRI_Int32String2(char const* str, size_t length);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to uint32 from string
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////////////////////////////////////////////////////////////////////////////////
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uint32_t TRI_UInt32String(char const* str);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from int8, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringInt8InPlace(int8_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint8, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt8InPlace(uint8_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from int16, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringInt16InPlace(int16_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint16, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt16InPlace(uint16_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from int32, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringInt32InPlace(int32_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint32, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt32InPlace(uint32_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from int64, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringInt64InPlace(int64_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint64, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt64InPlace(uint64_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint32
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////////////////////////////////////////////////////////////////////////////////
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char* TRI_StringUInt32(uint32_t);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to string from uint64
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////////////////////////////////////////////////////////////////////////////////
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char* TRI_StringUInt64(uint64_t);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to a hex string from uint32, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt32HexInPlace(uint32_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to a hex string from uint64, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt64HexInPlace(uint64_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to an octal string from uint32, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt32OctalInPlace(uint32_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief convert to an octal string from uint64, using the specified buffer.
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/// A NUL-byte will be appended at the end.
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/// It is the caller's responsibility to ensure the buffer is big enough to
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/// contain the result string and the NUL byte.
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/// The length of the string number in characters without the NUL byte is
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/// returned.
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////////////////////////////////////////////////////////////////////////////////
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size_t TRI_StringUInt64OctalInPlace(uint64_t, char*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief converts a time stamp to a string
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////////////////////////////////////////////////////////////////////////////////
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std::string TRI_StringTimeStamp(double);
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#endif
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