iforce2d Chris / Mbed 2 deprecated ubxDistanceMeter

Displays distance to start location on OLED screen.

Dependencies:   mbed

u8g_u8toa.c@0:972874f31c98, 2018-03-07 (annotated)

Committer:
iforce2d
Date:
Wed Mar 07 12:49:14 2018 +0000
Revision:
0:972874f31c98
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iforce2d 0:972874f31c98 1 /*
iforce2d 0:972874f31c98 2
iforce2d 0:972874f31c98 3 u8g_u8toa.c
iforce2d 0:972874f31c98 4
iforce2d 0:972874f31c98 5
iforce2d 0:972874f31c98 6 Universal 8bit Graphics Library
iforce2d 0:972874f31c98 7
iforce2d 0:972874f31c98 8 Copyright (c) 2011, olikraus@gmail.com
iforce2d 0:972874f31c98 9 All rights reserved.
iforce2d 0:972874f31c98 10
iforce2d 0:972874f31c98 11 Redistribution and use in source and binary forms, with or without modification,
iforce2d 0:972874f31c98 12 are permitted provided that the following conditions are met:
iforce2d 0:972874f31c98 13
iforce2d 0:972874f31c98 14 * Redistributions of source code must retain the above copyright notice, this list
iforce2d 0:972874f31c98 15 of conditions and the following disclaimer.
iforce2d 0:972874f31c98 16
iforce2d 0:972874f31c98 17 * Redistributions in binary form must reproduce the above copyright notice, this
iforce2d 0:972874f31c98 18 list of conditions and the following disclaimer in the documentation and/or other
iforce2d 0:972874f31c98 19 materials provided with the distribution.
iforce2d 0:972874f31c98 20
iforce2d 0:972874f31c98 21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
iforce2d 0:972874f31c98 22 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
iforce2d 0:972874f31c98 23 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
iforce2d 0:972874f31c98 24 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
iforce2d 0:972874f31c98 25 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
iforce2d 0:972874f31c98 26 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
iforce2d 0:972874f31c98 27 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
iforce2d 0:972874f31c98 28 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
iforce2d 0:972874f31c98 29 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
iforce2d 0:972874f31c98 30 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
iforce2d 0:972874f31c98 31 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
iforce2d 0:972874f31c98 32 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
iforce2d 0:972874f31c98 33 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
iforce2d 0:972874f31c98 34
iforce2d 0:972874f31c98 35 */
iforce2d 0:972874f31c98 36
iforce2d 0:972874f31c98 37
iforce2d 0:972874f31c98 38 #include "u8g.h"
iforce2d 0:972874f31c98 39
iforce2d 0:972874f31c98 40 static const unsigned char u8g_u8toa_tab[3] = { 100, 10, 1 } ;
iforce2d 0:972874f31c98 41 const char *u8g_u8toap(char * dest, uint8_t v)
iforce2d 0:972874f31c98 42 {
iforce2d 0:972874f31c98 43 uint8_t pos;
iforce2d 0:972874f31c98 44 uint8_t d;
iforce2d 0:972874f31c98 45 uint8_t c;
iforce2d 0:972874f31c98 46 for( pos = 0; pos < 3; pos++ )
iforce2d 0:972874f31c98 47 {
iforce2d 0:972874f31c98 48 d = '0';
iforce2d 0:972874f31c98 49 c = *(u8g_u8toa_tab+pos);
iforce2d 0:972874f31c98 50 while( v >= c )
iforce2d 0:972874f31c98 51 {
iforce2d 0:972874f31c98 52 v -= c;
iforce2d 0:972874f31c98 53 d++;
iforce2d 0:972874f31c98 54 }
iforce2d 0:972874f31c98 55 dest[pos] = d;
iforce2d 0:972874f31c98 56 }
iforce2d 0:972874f31c98 57 dest[3] = '\0';
iforce2d 0:972874f31c98 58 return dest;
iforce2d 0:972874f31c98 59 }
iforce2d 0:972874f31c98 60
iforce2d 0:972874f31c98 61 /* v = value, d = number of digits */
iforce2d 0:972874f31c98 62 const char *u8g_u8toa(uint8_t v, uint8_t d)
iforce2d 0:972874f31c98 63 {
iforce2d 0:972874f31c98 64 static char buf[4];
iforce2d 0:972874f31c98 65 d = 3-d;
iforce2d 0:972874f31c98 66 return u8g_u8toap(buf, v) + d;
iforce2d 0:972874f31c98 67 }
iforce2d 0:972874f31c98 68
iforce2d 0:972874f31c98 69