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-
-
- #include "avr_functions.h"
- #include <string.h>
- #include <stdio.h>
-
- size_t strlen(const char *s)
- {
- size_t n=0;
-
- while (*s++) n++;
- return n;
- }
-
-
- char * ultoa(unsigned long val, char *buf, int radix)
- {
- unsigned digit;
- int i=0, j;
- char t;
-
- while (1) {
- digit = val % radix;
- buf[i] = ((digit < 10) ? '0' + digit : 'A' + digit - 10);
- val /= radix;
- if (val == 0) break;
- i++;
- }
- buf[i + 1] = 0;
- for (j=0; j < i; j++, i--) {
- t = buf[j];
- buf[j] = buf[i];
- buf[i] = t;
- }
- return buf;
- }
-
- char * ltoa(long val, char *buf, int radix)
- {
- if (val >= 0) {
- return ultoa(val, buf, radix);
- } else {
- buf[0] = '-';
- ultoa(-val, buf + 1, radix);
- return buf;
- }
- }
-
-
- char * dtostrf(float val, int width, unsigned int precision, char *buf)
- {
- char format[20];
- sprintf(format, "%%%d.%df", width, precision);
- sprintf(buf, format, val);
- return buf;
- }
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