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/* Test of sprintf(), float version, '%f(F)' specification.
$Id: sprintf_flt-f01.c,v 1.1 2007/02/18 13:45:38 dmix Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "progmem.h"
PROGMEM static const struct sprf_s {
char fmt[8];
float val;
char pattern[21];
} t[] = {
/* Nonregular cases. */
{ "%f", 0, "0.000000" },
{ "%7.3f", 9.9999, " 10.000" },
/* Flags separatly. */
{ "%f", 1.234567, "1.234567" },
{ "%F", 1.234567, "1.234567" },
{ "%f", -1.234567, "-1.234567" },
{ "% f", 1.234567, " 1.234567" },
{ "%+f", 1.234567, "+1.234567" },
{ "%.3f", 1.234567, "1.235" },
{ "%12f", 1.234567, " 1.234567" },
{ "%-12f", 1.234567, "1.234567 " },
{ "%012f", 1.234567, "00001.234567" },
/* Flags together. */
{ "% F", 1.234567, " 1.234567" },
{ "% +f", 1.234567, "+1.234567" },
{ "% f", -1.234567, "-1.234567" },
{ "%+012f", 1.234567, "+0001.234567" },
{ "%-012f", 1.234567, "1.234567 " },
/* Precision. */
{ "%.7f", 1.2345678, "1.2345678" },
{ "%.6f", 1.2345678, "1.234568" },
{ "%.5f", 1.2345678, "1.23457" },
{ "%.4f", 1.2345678, "1.2346" },
{ "%.3f", 1.2345678, "1.235" },
{ "%.2f", 1.2345678, "1.23" },
{ "%.1f", 1.2345678, "1.2" },
{ "%.0f", 1.2345678, "1" },
{ "%.f", 1.2345678, "1" },
/* Width, without dec. point */
{ "%.0f", 10, "10" },
{ "%0.0f", 10, "10" },
{ "%1.0f", 10, "10" },
{ "%2.0f", 10, "10" },
{ "%3.0f", 10, " 10" },
{ "%12.0f", 10, " 10" },
{ "%12.0f", -10, " -10" },
/* Width, only fractional part. */
{ "%.3f", 0.123, "0.123" },
{ "%0.3f", 0.123, "0.123" },
{ "%1.3f", 0.123, "0.123" },
{ "%5.3f", 0.123, "0.123" },
{ "%6.3f", 0.123, " 0.123" },
{ "%12.3f", 0.123, " 0.123" },
{ "%12.3f", -0.123, " -0.123" },
/* Width, integer and fractional are present. */
{ "%.3f", 1.234, "1.234" },
{ "%0.3f", 1.234, "1.234" },
{ "%1.3f", 1.234, "1.234" },
{ "%5.3f", 1.234, "1.234" },
{ "%6.3f", 1.234, " 1.234" },
{ "%12.3f", 1.234, " 1.234" },
{ "%12.3f", -1.234, " -1.234" },
/* Double rounding elimination (ftoa_engine give at least 1 digit). */
{ "%.3f", 0.46, "0.460" },
{ "%.2f", 0.46, "0.46" },
{ "%.1f", 0.46, "0.5" },
{ "%.0f", 0.46, "0" }, /* just that very case */
{ "%1.0f", 0.46, "0" },
{ "%2.0f", 0.46, " 0" },
/* Rounding cases. */
{ "%.3f", 0.51, "0.510" },
{ "%.2f", 0.51, "0.51" },
{ "%.1f", 0.51, "0.5" },
{ "%.0f", 0.51, "1" },
{ "%1.0f", 0.51, "1" },
{ "%2.0f", 0.51, " 1" },
{ "%.3f", 0.58, "0.580" },
{ "%.2f", 0.58, "0.58" },
{ "%.1f", 0.58, "0.6" },
{ "%.0f", 0.58, "1" },
{ "%1.0f", 0.58, "1" },
{ "%2.0f", 0.58, " 1" },
{ "%.4f", 0.4999, "0.4999"},
{ "%.3f", 0.4999, "0.500" },
{ "%.2f", 0.4999, "0.50" },
{ "%.1f", 0.4999, "0.5" },
{ "%.0f", 0.4999, "0" },
{ "%.2f", 0.049, "0.05" },
{ "%.1f", 0.049, "0.0" },
{ "%.0f", 0.049, "0" },
{ "%.10f", 0.00000000049, "0.0000000005" },
{ "%.9f", 0.00000000049, "0.000000000" },
{ "%.8f", 0.00000000049, "0.00000000" },
{ "%.10f", 0.00000000051, "0.0000000005" },
{ "%.9f", 0.00000000051, "0.000000001" },
{ "%.8f", 0.00000000051, "0.00000000" },
};
#ifndef __AVR__
# define strlen_P strlen
#endif
void run_sprf (const struct sprf_s *pt, int testno)
{
static char s[300];
int n;
int code;
#ifdef __AVR__
n = sprintf_P (s, pt->fmt, pgm_read_dword (& pt->val));
#else
n = sprintf (s, pt->fmt, pt->val);
#endif
if (n != (int)strlen_P (pt->pattern))
code = testno + 1000;
else if (strcmp_P (s, pt->pattern))
code = testno;
else
return;
#if !defined(__AVR__)
printf ("\ntestno %3d: expect: %3d, \"%s\","
"\n output: %3d, \"%s\"\n",
testno, strlen(pt->pattern), pt->pattern, n, s);
exit (code < 256 ? testno : 255);
#elif defined(DEBUG)
exit ((int)s);
#endif
exit (code);
}
int main ()
{
int i;
for (i = 0; (unsigned)i != sizeof(t)/sizeof(t[0]); i++)
run_sprf (t+i, i+1);
return 0;
}
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