+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdlib.h>
#ifdef STORAGE_WITH_MATH
#include <math.h>
#endif
-#include "web_buffer.h"
-
#include "common.h"
+#include "web_buffer.h"
#include "log.h"
void web_buffer_strcpy(struct web_buffer *wb, const char *txt)
wb->bytes = bytes;
}
-int print_calculated_number(char *str, calculated_number value)
-{
- char *wstr = str;
-
- int sign = (value < 0) ? 1 : 0;
- if(sign) value = -value;
-
-#ifdef STORAGE_WITH_MATH
- // without llrint() there are rounding problems
- // for example 0.9 becomes 0.89
- unsigned long long uvalue = llrint(value * (calculated_number)100000);
-#else
- unsigned long long uvalue = value * (calculated_number)100000;
-#endif
-
- // print each digit
- do *wstr++ = (char)(48 + (uvalue % 10)); while(uvalue /= 10);
-
- // make sure we have 6 bytes at least
- while((wstr - str) < 6) *wstr++ = '0';
-
- // put the sign back
- if(sign) *wstr++ = '-';
-
- // reverse it
- char *begin = str, *end = --wstr, aux;
- while (end > begin) aux = *end, *end-- = *begin, *begin++ = aux;
- // wstr--;
- // strreverse(str, wstr);
-
- // remove trailing zeros
- int decimal = 5;
- while(decimal > 0 && *wstr == '0') {
- *wstr-- = '\0';
- decimal--;
- }
-
- // terminate it, one position to the right
- // to let space for a dot
- wstr[2] = '\0';
-
- // make space for the dot
- int i;
- for(i = 0; i < decimal ;i++) {
- wstr[1] = wstr[0];
- wstr--;
- }
-
- // put the dot
- if(wstr[2] == '\0') { wstr[1] = '\0'; decimal--; }
- else wstr[1] = '.';
-
- // return the buffer length
- return ( (wstr - str) + 2 + decimal );
-}
-
void web_buffer_rrd_value(struct web_buffer *wb, calculated_number value)
{
if(wb->size - wb->bytes < 50) return;