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/* Test of scanf(): 'd' conversion directive.
$Id: sscanf-d1.c,v 1.2.2.3 2008/03/20 21:42:33 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 {
int i[8];
char s[8];
} v = { {1}, {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)
#define PVEC(args...) ({ static int __x[] PROGMEM = {args}; __x; })
int main ()
{
/* Empty input. */
CHECK (-1, (*(char *)v.i == FILL), "", "%d", v.i);
CHECK (-1, (*(char *)v.i == FILL), "", " %d", v.i);
CHECK (-1, (*(char *)v.i == FILL), " ", " %d", v.i);
CHECK (-1, (*(char *)v.i == FILL), " ", " %d", v.i);
CHECK (-1, (*(char *)v.i == FILL), "\t\n\v\f\r", " %d", v.i);
/* Normal conversion. */
CHECK (1, (v.i[0] == 0), "0", "%d", v.i);
CHECK (
8,
!memcmp_P (
v.i,
PVEC (0, 0, 1, 32767, -1, -32768, 12345, -6789),
8 * sizeof(int)),
"+0 -0 1 32767 -1 -32768 +12345 -6789",
"%d %d %d %d %d %d %d %d",
v.i + 0, v.i + 1,
v.i + 2, v.i + 3,
v.i + 4, v.i + 5,
v.i + 6, v.i + 7);
/* '%u' conversion. */
CHECK (
3,
!memcmp_P (v.i, PVEC (123, -456, 65535), 3 * sizeof(int)),
"123 -456 65535",
"%u%u%u", v.i, v.i + 1, v.i + 2);
/* Leading spaces. */
CHECK (
2,
!memcmp_P (v.i, PVEC (12, 123), 2 * sizeof(int)),
" 12\t\n\v\f\r123",
"%d%d", v.i, v.i + 1);
/* End of number. */
CHECK (2, v.i[0] == 0 && v.s[0] == 'x', "0x1", "%d%c", v.i, v.s);
CHECK (
10,
!memcmp_P (v.i, PVEC (1, 2, 3, 4, 5), 5 * sizeof(int))
&& !memcmp_P (v.s, PSTR(" \n.\001\377"), 5),
"1 2\n3.4\0015\3776",
"%d%c%d%c%d%c%d%c%d%c",
v.i + 0, v.s + 0,
v.i + 1, v.s + 1,
v.i + 2, v.s + 2,
v.i + 3, v.s + 3,
v.i + 4, v.s + 4);
CHECK (
3,
!memcmp_P (v.i, PVEC (6, -7, 8), 3 * sizeof(int)),
"6-7+8",
"%d%d%d",
v.i, v.i + 1, v.i + 2);
/* Non-decimal input. */
CHECK (1, (v.i[0] == 10), "010", "%d", v.i);
CHECK (1, (v.i[0] == 0), "0x10", "%d", v.i);
CHECK (1, (v.i[0] == 10), "10e2", "%d", v.i);
/* Suppress a writing. */
CHECK (0, (*(char *)v.i == FILL), "123", "%*d", v.i);
CHECK (
2,
!memcmp_P (v.i, PVEC (1, 3), 2 * sizeof(int)),
"1 2 3", "%d%*d%d", v.i, v.i + 1);
return 0;
}
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