/* * File: HexValues.cpp * * Copyright (c) Freescale Semiconductor, Inc. All rights reserved. * See included license file for license details. */ #include "HexValues.h" bool isHexDigit(char c) { return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'); } //! \return The integer equivalent to \a c. //! \retval -1 The character \a c is not a hex character. uint8_t hexCharToInt(char c) { if (c >= '0' && c <= '9') return c - '0'; else if (c >= 'a' && c <= 'f') return c - 'a' + 10; else if (c >= 'A' && c <= 'F') return c - 'A' + 10; else return static_cast<uint8_t>(-1); } //! \param encodedByte Must point to at least two ASCII hex characters. //! uint8_t hexByteToInt(const char * encodedByte) { return (hexCharToInt(encodedByte[0]) << 4) | hexCharToInt(encodedByte[1]); }