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/* Test of scanf(): 'x' conversion directive.
$Id: sscanf-x1.c,v 1.2.2.3 2008/03/20 21:42:35 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 {
unsigned int i[10];
char s[10];
} 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), "", "%x", v.i);
CHECK (-1, (*(char *)v.i == FILL), "", " %x", v.i);
CHECK (-1, (*(char *)v.i == FILL), " ", " %x", v.i);
CHECK (-1, (*(char *)v.i == FILL), " ", " %x", v.i);
CHECK (-1, (*(char *)v.i == FILL), "\t\n\v\f\r", " %x", v.i);
/* Normal conversion. */
CHECK (1, (v.i[0] == 0), "0", "%x", v.i);
#if 0
CHECK (1, (v.i[0] == 0), "+0", "%x", v.i);
CHECK (1, (v.i[0] == 0), "-0", "%x", v.i);
CHECK (1, (v.i[0] == 1), "1", "%x", v.i);
CHECK (1, (v.i[0] == 0x1234), "1234", "%x", v.i);
CHECK (1, (v.i[0] == 0x5678), "5678", "%x", v.i);
CHECK (1, (v.i[0] == 0x9ABC), "9ABC", "%x", v.i);
CHECK (1, (v.i[0] == 0xDEF0), "DEF0", "%x", v.i);
CHECK (1, (v.i[0] == 0xFFFF), "FFFF", "%x", v.i);
CHECK (1, (v.i[0] == (unsigned)(-1)), "-1", "%x", v.i);
CHECK (1, (v.i[0] == 1), "-FFFFFFFF", "%x", v.i);
#else
CHECK (
10,
!memcmp_P (
v.i,
PVEC (0, 0, 1, 0x1234, 0x5678, 0x9ABC, 0xDEF0, 0xFFFF, -1, 1),
10 * sizeof(int)),
"+0 -0 1 1234 5678 9ABC DEF0 FFFF -1 -FFFFFFFF",
"%x %x %x %x %x %x %x %x %x %x",
v.i + 0, v.i + 1,
v.i + 2, v.i + 3,
v.i + 4, v.i + 5,
v.i + 6, v.i + 7,
v.i + 8, v.i + 9);
#endif
/* Low/upper characters. */
CHECK (
8,
!memcmp_P (
v.i,
PVEC(0xABCD, 0xEF, 0xABCD, 0xEF, 0xABCD, 0xEF, 0xABCD, 0xEF),
8 * sizeof(int)),
"abcd ef abcd ef ABCD EF AbCd eF",
"%x %x %X %X %X %X %x %X",
v.i + 0, v.i + 1,
v.i + 2, v.i + 3,
v.i + 4, v.i + 5,
v.i + 6, v.i + 7);
/* '%p' conversion. */
CHECK (
3,
!memcmp_P (v.i, PVEC(0xABCD, -0x12EF, 0x10), 3 * sizeof(int)),
"ABCD -12EF 0x10",
"%p%p%p", v.i, v.i + 1, v.i + 2);
/* Leading spaces. */
CHECK (1, (v.i[0] == 0x12), " 12", "%x", v.i);
CHECK (1, (v.i[0] == 0x123), "\t\n\v\f\r123", "%x", v.i);
/* Leading '0'. */
CHECK (1, (v.i[0] == 04567), "04567", "%o", v.i);
CHECK (1, (v.i[0] == 07654), "00000000007654", "%o", v.i);
/* Hex prefix. */
CHECK (
6, !memcmp_P (v.i, PVEC(1,2,3,4,0xA987,-0x100), 6 * sizeof(int)),
"0x1 0X2 0x3 0X4 0xA987 -0x100",
"%x%x%X%X%x%x",
v.i + 0, v.i + 1,
v.i + 2, v.i + 3,
v.i + 4, v.i + 5);
return 0;
}
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