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/* Test of scanf(): float conversion.
$Id: sscanf_flt-f1.c,v 1.1.2.3 2008/03/20 21:42:36 joerg_wunsch Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "progmem.h"
#ifdef __AVR__
# define ASSERT(expr) \
do { \
if (!(expr)) exit(__LINE__); \
} while (0)
# define EXIT(v) exit (v)
# if defined(__AVR_ATmega128__)
/* ATmega128 has enough RAM for sprintf(), print to 0x2000 in XRAM. */
# define PRINTF(f...) sprintf((char *)0x2000, f)
# else
/* small AVR */
# define PRINTF(f...)
# endif
#else
# include <assert.h>
# define ASSERT(expr) assert (expr)
# define EXIT(v) exit ((v) < 256 ? (v) : 255)
# define PRINTF(f...) printf (f)
# define sscanf_P sscanf
# define memcmp_P memcmp
#endif
/* Next variables are useful to debug the AVR. */
int vrslt = 1;
struct {
float x[7];
char c[7];
} v = { {1.0}, {1} };
void Check (int line, int expval, int rslt)
{
vrslt = rslt;
if (rslt != expval) {
PRINTF ("\nLine %d: expect= %d, rslt= %d\n", line, expval, rslt);
EXIT (line);
}
}
/* The sscanf() is called 4 times: SRAM and FLASH format, 2 values
to fill before run. */
#define CHECK(expval, ass_expr, str, fmt, ...) \
do { \
PROGMEM static char fmt_p[] = fmt; \
char str_s[220]; \
char fmt_s[40]; \
char FILL; \
int i; \
int (* volatile vp)(const char *, const char *, ...); \
\
ASSERT (sizeof(str_s) >= sizeof(str)); \
ASSERT (sizeof(fmt_s) >= sizeof(fmt_p)); \
strcpy_P (str_s, PSTR(str)); \
strcpy_P (fmt_s, fmt_p); \
\
for (FILL = 0; FILL < 4; FILL++) { \
memset (&v, FILL, sizeof(v)); \
vp = (FILL & 1) ? sscanf_P : sscanf; \
i = vp (str_s, (FILL & 1) ? fmt_p : fmt_s, ##__VA_ARGS__); \
Check (__LINE__, expval, i); \
ASSERT (ass_expr); \
} \
} while (0)
int main ()
{
/* All possible conversion symbols. */
CHECK (
6,
v.x[0] == 1.0 && v.x[1] == 2.0 && v.x[2] == 3.0
&& v.x[3] == 4.0 && v.x[4] == 5.0 && v.x[5] == 6.0,
"1 2 3 4 5 6", "%e %E %f %F %g %G",
& v.x[0], & v.x[1], & v.x[2], & v.x[3], & v.x[4], & v.x[5]);
/* Empty input. */
CHECK (-1, (*(char *)v.x == FILL), "", "%e", v.x);
CHECK (-1, (*(char *)v.x == FILL), "", " %e", v.x);
CHECK (-1, (*(char *)v.x == FILL), " ", " %e", v.x);
CHECK (-1, (*(char *)v.x == FILL), " ", " %e", v.x);
CHECK (-1, (*(char *)v.x == FILL), "\t\n\v\f\r", " %e", v.x);
/* 0.0 */
CHECK (
6,
v.x[0] == 0.0 && v.x[1] == 0.0 && v.x[2] == 0.0
&& v.x[3] == 0.0 && v.x[4] == 0.0 && v.x[5] == 0.0,
"0 0. .0 0.0 +0 +0.0", "%e %e %e %e %e %e",
& v.x[0], & v.x[1], & v.x[2], & v.x[3], & v.x[4], & v.x[5]);
/* -0.0 */
CHECK (
6,
v.x[0] == -0.0 && v.x[1] == -0.0 && v.x[2] == -0.0
&& v.x[3] == -0.0 && v.x[4] == -0.0 && v.x[5] == -0.0,
"-0 -0. -.0 -0.0 -00 -0e+00", "%e %e %e %e %e %e",
& v.x[0], & v.x[1], & v.x[2], & v.x[3], & v.x[4], & v.x[5]);
/* End of number. */
CHECK (
12,
v.x[0] == 123 && v.c[0] == ' '
&& v.x[1] == 456 && v.c[1] == '\001'
&& v.x[2] == 789 && v.c[2] == '\377'
&& v.x[3] == 12. && v.c[3] == '/'
&& v.x[4] == 345 && v.c[4] == ':'
&& v.x[5] == 678 && v.c[5] == 'd',
"123 456\001789\377012/345:678d+11",
"%e%c %e%c %e%c %e%c %e%c %e%c",
& v.x[0], & v.c[0], & v.x[1], & v.c[1], & v.x[2], & v.c[2],
& v.x[3], & v.c[3], & v.x[4], & v.c[4], & v.x[5], & v.c[5]);
CHECK (
12,
v.x[0] == 234 && v.c[0] == '.'
&& v.x[1] == 567 && v.c[1] == '+'
&& v.x[2] == 890 && v.c[2] == '-'
&& v.x[3] == 123 && v.c[3] == 'f'
&& v.x[4] == 456 && v.c[4] == '\177'
&& v.x[5] == 0.5 && v.c[5] == '.',
"234..567+890-123f+456\1770.5.",
"%e%c %e%c %e%c %e%c %e%c %e%c",
& v.x[0], & v.c[0], & v.x[1], & v.c[1], & v.x[2], & v.c[2],
& v.x[3], & v.c[3], & v.x[4], & v.c[4], & v.x[5], & v.c[5]);
return 0;
}
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