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/* Test of strtod() function. Base cases.
$Id: strtod-1.c,v 1.1 2007/02/05 21:35:59 dmix Exp $
*/
#include <errno.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "progmem.h"
union lofl_u {
long lo;
float fl;
};
volatile union lofl_u v = { .lo = 1 };
PROGMEM const struct { /* Table of test cases. */
char s[20];
unsigned char len;
float val;
int eno;
} t[] = {
/* Empty string */
{ "", 0, 0, 0 },
{ " ", 0, 0, 0 },
{ "\t\n\r\f\v", 0, 0, 0 },
/* 0.0 */
{ "0", 1, 0.0, 0 },
{ "0.0", 3, 0.0, 0 },
{ "+0", 2, 0.0, 0 },
{ "+0.0", 4, 0.0, 0 },
/* -0.0 */
{ "-0", 2, -0.0, 0 },
{ "-0.0", 4, -0.0, 0 },
/* Leading spaces */
{ " \t\n\r\f\v1", 7, 1, 0 },
/* Non-zero character at the end of number */
{ "123 ", 3, 123, 0 },
{ "123/", 3, 123, 0 },
{ "123:", 3, 123, 0 },
{ "123\x01", 3, 123, 0 },
{ "123\xff", 3, 123, 0 },
{ "123-", 3, 123, 0 },
{ "123+", 3, 123, 0 },
{ "123..", 4, 123, 0 },
/* No valid digits */
{ ".", 0, 0, 0 },
{ "+", 0, 0, 0 },
{ "-", 0, 0, 0 },
{ "e", 0, 0, 0 },
{ "E", 0, 0, 0 },
{ "+-123", 0, 0, 0 },
{ "-+123", 0, 0, 0 },
{ ".-123", 0, 0, 0 },
{ ".+123", 0, 0, 0 },
{ "e12", 0, 0, 0 },
{ "- 1", 0, 0, 0 },
{ "IN", 0, 0, 0 },
{ "NA", 0, 0, 0 },
/* Infinity */
{ "INF", 3, INFINITY, 0 },
{ " inf", 4, INFINITY, 0 },
{ "+Inf", 4, INFINITY, 0 },
{ "-INF", 4, -INFINITY, 0 },
{ "\t-inF", 5, -INFINITY, 0 },
{ "INFINITY", 8, INFINITY, 0 },
{ "-InFiNiTy", 9, -INFINITY, 0 },
{ "INFINIT", 3, INFINITY, 0 },
{ "infinitys", 8, INFINITY, 0 },
/* NaN */
{ "NAN", 3, NAN, 0 },
{ " nan", 4, NAN, 0 },
{ "-NaN", 4, NAN, 0 },
{ "NANQ", 3, NAN, 0 },
/* Overflow */
{ "1e309", 5, INFINITY, ERANGE },
{ "-1e309", 6, -INFINITY, ERANGE },
{ "1e32767", 7, INFINITY, ERANGE },
{ "1e32768", 7, INFINITY, ERANGE },
{ "1e32769", 7, INFINITY, ERANGE },
{ "1e9999999999", 12, INFINITY, ERANGE },
/* Underflow */
{ "1e-350", 6, 0.0, ERANGE },
#ifdef __AVR__
{ "-1e-350", 7, -0.0, ERANGE },
#else
{ "-1e-350", 7, 0.0, ERANGE }, /* ??? */
#endif
{ "1e-32767", 8, 0.0, ERANGE },
{ "1e-32768", 8, 0.0, ERANGE },
{ "1e-32769", 8, 0.0, ERANGE },
{ "1e-9999999999", 13, 0.0, ERANGE },
/* Nonregular cases */
{ "1234.5", 6, 1234.5, 0 },
{ "-9.876e12", 9, -9.876e12, 0 },
};
void x_exit (int index)
{
#ifndef __AVR__
fprintf (stderr, "t[%d]: %#lx\n", index - 1, v.lo);
#endif
exit (index ? index : -1);
}
int main ()
{
char s [sizeof(t[0].s)];
char *p;
union lofl_u mst;
unsigned char len;
int eno;
int i;
for (i = 0; i < (int) (sizeof(t) / sizeof(t[0])); i++) {
strcpy_P (s, t[i].s);
len = pgm_read_byte (& t[i].len);
mst.lo = pgm_read_dword (& t[i].val);
eno = pgm_read_word (& t[i].eno);
errno = 0;
p = 0;
v.fl = strtod (s, &p);
if (!p || (p - s) != len || errno != eno)
x_exit (i+1);
if (isnan(mst.fl) && isnan(v.fl))
continue;
if (v.lo != mst.lo)
x_exit (i+1);
}
return 0;
}
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