diff --git a/test/src/itoa.cpp b/test/src/itoa.cpp index 292d0ef0..97e06ffe 100644 --- a/test/src/itoa.cpp +++ b/test/src/itoa.cpp @@ -1,62 +1,123 @@ /* - * Copyright (c) 2020 Arduino. All rights reserved. - */ + Copyright (c) 2014 Arduino LLC. All right reserved. -/************************************************************************************** - * INCLUDE - **************************************************************************************/ + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. -#include + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU Lesser General Public License for more details. -#include -#include + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ -#include +#ifdef __cplusplus +extern "C" { +#endif -/************************************************************************************** - * FUNCTION IMPLEMENTATION - **************************************************************************************/ - -std::string radixToFmtString(int const radix) +char* ltoa( long value, char *string, int radix ) { - if (radix == 8) return std::string("%o"); - else if (radix == 10) return std::string("%d"); - else if (radix == 16) return std::string("%X"); - else throw std::runtime_error("Invalid radix."); -} + char tmp[33]; + char *tp = tmp; + unsigned long i; + unsigned long v; + int sign; + char *sp; -char * itoa(int value, char * str, int radix) -{ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wdeprecated-declarations" - sprintf(str, radixToFmtString(radix).c_str(), value); -#pragma GCC diagnostic pop - return str; + if ( string == nullptr ) + { + return nullptr ; + } + + if (radix > 36 || radix <= 1) + { + return nullptr ; + } + + sign = (radix == 10 && value < 0); + if (sign) + { + v = -value; + } + else + { + v = (unsigned long)value; + } + + while (v || tp == tmp) + { + i = v % radix; + v = v / radix; + if (i < 10) + *tp++ = static_cast(i+'0'); + else + *tp++ = static_cast(i + 'a' - 10); + } + + sp = string; + + if (sign) + *sp++ = '-'; + while (tp > tmp) + *sp++ = *--tp; + *sp = 0; + + return string; } -char * ltoa(long value, char * str, int radix) +char* ultoa( unsigned long value, char *string, int radix ) { -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wdeprecated-declarations" - sprintf(str, radixToFmtString(radix).c_str(), value); -#pragma GCC diagnostic pop - return str; + char tmp[33]; + char *tp = tmp; + unsigned long i; + unsigned long v = value; + char *sp; + + if ( string == nullptr ) + { + return nullptr; + } + + if (radix > 36 || radix <= 1) + { + return nullptr; + } + + while (v || tp == tmp) + { + i = v % radix; + v = v / radix; + if (i < 10) + *tp++ = static_cast(i+'0'); + else + *tp++ = static_cast(i + 'a' - 10); + } + + sp = string; + + + while (tp > tmp) + *sp++ = *--tp; + *sp = 0; + + return string; } -char * utoa(unsigned value, char *str, int radix) +char* itoa( int value, char *string, int radix ) { -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wdeprecated-declarations" - sprintf(str, radixToFmtString(radix).c_str(), value); -#pragma GCC diagnostic pop - return str; + return ltoa( value, string, radix ) ; } -char * ultoa(unsigned long value, char * str, int radix) +char* utoa( unsigned int value, char *string, int radix ) { -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wdeprecated-declarations" - sprintf(str, radixToFmtString(radix).c_str(), value); -#pragma GCC diagnostic pop - return str; + return ultoa( value, string, radix ) ; } + +#ifdef __cplusplus +} // extern "C" +#endif pFad - Phonifier reborn

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