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/* Test of sprintf(), float version, '%e(E)' specification.
$Id: sprintf_flt-e01.c,v 1.1 2007/02/18 13:45:20 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[] = {
/* Flags separatly. */
{ "%e", 1.234567, "1.234567e+00" },
{ "%E", 1.234567, "1.234567E+00" },
{ "% e", 1.234567, " 1.234567e+00" },
{ "%+e", 1.234567, "+1.234567e+00" },
{ "%.3e", 1.234567, "1.235e+00" },
{ "%20e", 1.234567, " 1.234567e+00" },
{ "%-20e", 1.234567, "1.234567e+00 " },
{ "%020e", 1.234567, "000000001.234567e+00" },
/* Flags together. */
{ "% E", 1.234567, " 1.234567E+00" },
{ "% +e", 1.234567, "+1.234567e+00" },
{ "% e", -1.234567, "-1.234567e+00" },
{ "%+020e", 1.234567, "+00000001.234567e+00" },
{ "%-020e", 1.234567, "1.234567e+00 " },
/* Precision. */
{ "%.7e", 1.2345678, "1.2345678e+00" },
{ "%.6e", 1.2345678, "1.234568e+00" },
{ "%.5e", 1.2345678, "1.23457e+00" },
{ "%.4e", 1.2345678, "1.2346e+00" },
{ "%.3e", 1.2345678, "1.235e+00" },
{ "%.2e", 1.2345678, "1.23e+00" },
{ "%.1e", 1.2345678, "1.2e+00" },
{ "%.0e", 1.2345678, "1e+00" },
{ "%.e", 1.2345678, "1e+00" },
/* Width. */
{ "%1e", 1.2345678, "1.234568e+00" },
{ "%12e", 1.2345678, "1.234568e+00" },
{ "%13e", 1.2345678, " 1.234568e+00" },
{ "%13e", -1.2345678, "-1.234568e+00" },
{ "%5.0e", 1.2345678, "1e+00", },
{ "%6.0e", 1.2345678, " 1e+00", },
/* Min and max values. */
{ "%.7e", 1.1754944e-38, "1.1754944e-38" },
{ "%.7e", 3.4028235e+38, "3.4028235e+38" },
/* Exponent "-00". */
{ "%.0e", 9.9999994e-01, "1e-00" },
{ "%.1e", 9.9999994e-01, "1.0e-00" },
{ "%.2e", 9.9999994e-01, "1.00e-00" },
{ "%.3e", 9.9999994e-01, "1.000e-00" },
{ "%.4e", 9.9999994e-01, "1.0000e-00" },
{ "%.5e", 9.9999994e-01, "1.00000e-00" },
{ "%.6e", 9.9999994e-01, "9.999999e-01" },
{ "%.7e", 9.9999994e-01, "9.9999994e-01" },
{ "%10.0e", -9.9999994e-01, " -1e-00" },
{ "%.0e", 0.9500001, "1e-00" },
{ "%.1e", 0.9950001, "1.0e-00" },
{ "%.2e", 0.9995001, "1.00e-00" },
{ "%.3e", 0.9999501, "1.000e-00" },
{ "%.4e", 0.9999951, "1.0000e-00" },
{ "%.5e", 0.9999996, "1.00000e-00" },
{ "%.6e", 0.9999996, "9.999996e-01" },
};
#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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