UIPEthernet library for Arduino IDE, Eclipse with arduino plugin and MBED/SMeshStudio (AVR,STM32F,ESP8266,Intel ARC32,Nordic nRF51,Teensy boards,Realtek Ameba(RTL8195A,RTL8710)), ENC28j60 network chip. Compatible with Wiznet W5100 Ethernet library API. Compiled and tested on Nucleo-F302R8. Master repository is: https://github.com/UIPEthernet/UIPEthernet/
Diff: mbed/itoa.c
- Revision:
- 7:ef1f092165eb
- Child:
- 35:f9f3a91fe4d4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed/itoa.c Wed Dec 28 13:02:52 2016 +0000 @@ -0,0 +1,170 @@ +/* + Copyright (c) 2011 Arduino. All right reserved. + + 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. + + 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. + + 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 "itoa.h" +#include <string.h> + +#ifdef __cplusplus +extern "C"{ +#endif // __cplusplus + +#if 0 +/* reverse: reverse string s in place */ +static void reverse( char s[] ) +{ + int i, j ; + char c ; + + for ( i = 0, j = strlen(s)-1 ; i < j ; i++, j-- ) + { + c = s[i] ; + s[i] = s[j] ; + s[j] = c ; + } +} + +/* itoa: convert n to characters in s */ +extern void itoa( int n, char s[] ) +{ + int i, sign ; + + if ( (sign = n) < 0 ) /* record sign */ + { + n = -n; /* make n positive */ + } + + i = 0; + do + { /* generate digits in reverse order */ + s[i++] = n % 10 + '0'; /* get next digit */ + } while ((n /= 10) > 0) ; /* delete it */ + + if (sign < 0 ) + { + s[i++] = '-'; + } + + s[i] = '\0'; + + reverse( s ) ; +} + +#else + +extern char* itoa( int value, char *string, int radix ) +{ + return ltoa( value, string, radix ) ; +} + +extern char* ltoa( long value, char *string, int radix ) +{ + char tmp[33]; + char *tp = tmp; + long i; + unsigned long v; + int sign; + char *sp; + + if ( string == NULL ) + { + return 0 ; + } + + if (radix > 36 || radix <= 1) + { + return 0 ; + } + + 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++ = i+'0'; + else + *tp++ = i + 'a' - 10; + } + + sp = string; + + if (sign) + *sp++ = '-'; + while (tp > tmp) + *sp++ = *--tp; + *sp = 0; + + return string; +} + +extern char* utoa( unsigned long value, char *string, int radix ) +{ + return ultoa( value, string, radix ) ; +} + +extern char* ultoa( unsigned long value, char *string, int radix ) +{ + char tmp[33]; + char *tp = tmp; + long i; + unsigned long v = value; + char *sp; + + if ( string == NULL ) + { + return 0; + } + + if (radix > 36 || radix <= 1) + { + return 0; + } + + while (v || tp == tmp) + { + i = v % radix; + v = v / radix; + if (i < 10) + *tp++ = i+'0'; + else + *tp++ = i + 'a' - 10; + } + + sp = string; + + + while (tp > tmp) + *sp++ = *--tp; + *sp = 0; + + return string; +} +#endif /* 0 */ + +#ifdef __cplusplus +} // extern "C" +#endif // __cplusplus