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/* Test of scanf(): '[' conversion directive.
$Id: sscanf_brk-4.c,v 1.1.2.3 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 {
char c[12];
} v = { {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 ()
{
/* A few conversions. */
CHECK (2, !memcmp_P(v.c, PSTR("AB\000CD\000"), 6),
"ABCD", "%[AB]%[CD]", v.c, v.c + 3);
/* Suppress a writing. */
CHECK (0, (v.c[0] == FILL), "A", "%*[A]", v.c);
CHECK (2, !memcmp_P(v.c, PSTR("A\000C\000"), 4),
"ABC", "%[A]%*[B]%[C]", v.c, v.c + 2);
/* Width field. */
CHECK (1, !strcmp_P(v.c, PSTR("A")), "A", "%1[A]", v.c);
CHECK (1, !strcmp_P(v.c, PSTR("A")), "ABCD", "%1[A-Z]", v.c);
CHECK (1, !strcmp_P(v.c, PSTR("AB")), "ABCD", "%2[A-Z]", v.c);
CHECK (2, !memcmp_P(v.c, PSTR("CD\000AB\000"), 6),
"ABCD", "%2[A-Z]%2[A-Z]", v.c + 3, v.c);
CHECK (1, !strcmp_P(v.c, PSTR("the_quick_b")),
"the_quick_brown_fox", "%11[a-z_]", v.c);
/* Suppress and width. */
CHECK (0, (v.c[0] == FILL), "A", "%*1[A]", v.c);
CHECK (0, (v.c[0] == FILL), "AA", "%*2[A]", v.c);
/* Zero width. */
#ifdef __AVR__
CHECK (0, (v.c[0] == FILL && v.c[1] == FILL), "A", "%0[A]", v.c);
#else
CHECK (1, !strcmp_P(v.c, PSTR("A")), "A", "%0[A]", v.c); /* ??? */
#endif
/* Left width digit is 0. */
CHECK (1, !strcmp_P(v.c, PSTR("A")), "ABCD", "%01[A-Z]", v.c);
CHECK (1, !strcmp_P(v.c, PSTR("AB")), "ABCD", "%02[A-Z]", v.c);
/* Invalid symbol after '%'. */
CHECK (0, (v.c[0] == FILL), "A", "% [A]", v.c);
CHECK (0, (v.c[0] == FILL), "A", "%-[A]", v.c);
CHECK (0, (v.c[0] == FILL), "A", "%+[A]", v.c);
CHECK (0, (v.c[0] == FILL), "A", "%.[A]", v.c);
CHECK (0, (v.c[0] == FILL), "A", "%#[A]", v.c);
return 0;
}
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