69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
|
/*
|
||
|
|
|
||
|
|
u8g_u16toa.c
|
||
|
|
|
||
|
|
|
||
|
|
Universal 8bit Graphics Library
|
||
|
|
|
||
|
|
Copyright (c) 2012, olikraus@gmail.com
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
are permitted provided that the following conditions are met:
|
||
|
|
|
||
|
|
* Redistributions of source code must retain the above copyright notice, this list
|
||
|
|
of conditions and the following disclaimer.
|
||
|
|
|
||
|
|
* Redistributions in binary form must reproduce the above copyright notice, this
|
||
|
|
list of conditions and the following disclaimer in the documentation and/or other
|
||
|
|
materials provided with the distribution.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||
|
|
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
||
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
||
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include "u8g.h"
|
||
|
|
|
||
|
|
const char *u8g_u16toap(char * dest, uint16_t v)
|
||
|
|
{
|
||
|
|
uint8_t pos;
|
||
|
|
uint8_t d;
|
||
|
|
uint16_t c;
|
||
|
|
c = 10000;
|
||
|
|
for( pos = 0; pos < 5; pos++ )
|
||
|
|
{
|
||
|
|
d = '0';
|
||
|
|
while( v >= c )
|
||
|
|
{
|
||
|
|
v -= c;
|
||
|
|
d++;
|
||
|
|
}
|
||
|
|
dest[pos] = d;
|
||
|
|
c /= 10;
|
||
|
|
}
|
||
|
|
dest[5] = '\0';
|
||
|
|
return dest;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* v = value, d = number of digits */
|
||
|
|
const char *u8g_u16toa(uint16_t v, uint8_t d)
|
||
|
|
{
|
||
|
|
static char buf[6];
|
||
|
|
d = 5-d;
|
||
|
|
return u8g_u16toap(buf, v) + d;
|
||
|
|
}
|
||
|
|
|