File: sprintf-4.c

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avr-libc 1%3A1.6.2.cvs20080610-2
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/* Test of sprintf(), 'x' specification.
   $Id: sprintf-4.c,v 1.1 2007/02/18 13:44:24 dmix Exp $	*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "progmem.h"

#ifndef __AVR__
# define sprintf_P	sprintf
#endif

void Check (int line,
            const char *expstr,
	    int retval, const char *retstr)
{
    int code;

    if (retval != (int)strlen (retstr))
	code = 1000 + line;
    else if (strcmp_P (retstr, expstr))
	code = line;
    else
	return;
#if	!defined(__AVR__)
    if (code) {
	printf ("\nLine %3d: expect: %3d, \"%s\","
		"\n          output: %3d, \"%s\"\n",
		line, strlen (expstr), expstr, retval, retstr);
	code = (line < 256 ? line : 255);	/* common OS restriction */
    }
#elif	defined(DEBUG)
    exit ((int)retstr);
#endif
    exit (code);
}

/* 'vp' is used to avoid gcc warnings about format string.	*/
#define CHECK(expstr, fmt, ...)	do {				\
    char s[260];						\
    int i;							\
    int (* volatile vp)(char *, const char *, ...) = sprintf_P;	\
    memset (s, 0, sizeof(s));					\
    i = vp (s, PSTR(fmt), ##__VA_ARGS__);			\
    Check (__LINE__, PSTR(expstr), i, s);			\
} while (0)

int main ()
{
    /* '%x' specification	*/
    CHECK ("0", "%x", 0);
    CHECK ("1234 5678 9abc def0",
	   "%x %x %x %x", 0x1234, 0x5678, 0x9abc, 0xdef0);
    CHECK ("1 7fff 8000 8001 ffff",
           "%x %x %x %x %x", 1, 0x7fff, 0x8000, 0x8001, 0xffff);

    CHECK ("0 1 ffff", "%0x %0x %0x", 0, 1, 0xffff);
    CHECK ("0 1 ffff", "% x % x % x", 0, 1, 0xffff);
    CHECK ("0 1 ffff", "%+x %+x %+x", 0, 1, 0xffff);
    CHECK ("0 1 ffff", "%-x %-x %-x", 0, 1, 0xffff);
    CHECK ("0 0x1 0xffff", "%#x %#x %#x", 0, 1, 0xffff);

#ifdef	__AVR__
    CHECK ("0", "%.0x", 0);
#endif
    CHECK ("1 ffff", "%.0x %.0x", 1, 0xffff);
    CHECK ("0 1 ffff", "%.1x %.1x %.1x", 0, 1, 0xffff);
    CHECK ("00 01 ff ffff", "%.2x %.2x %.2x %.2x", 0, 1, 255, 0xffff);
    CHECK ("000 001 012 123 1234",
	   "%.3x %.3x %.3x %.3x %.3x", 0, 1, 0x12, 0x123, 0x1234);

    CHECK ("0.1.ffff", "%1x.%1x.%1x", 0, 1, 0xffff);
    CHECK (" 1.12.123", "%2x.%2x.%2x", 1, 0x12, 0x123);
    CHECK ("  1. 12.123.1234",
	   "%3x.%3x.%3x.%3x", 1, 0x12, 0x123, 0x1234);
    CHECK ("   0. 0x1.0x12.0x123.0x1234",
	   "%#4x.%#4x.%#4x.%#4x.%#4x", 0, 1, 0x12, 0x123, 0x1234);
    CHECK ("  14.ffff", "% 4x.% 4x", 0x14, 0xffff);
    CHECK ("  16.ffff", "%+4x.%+4x", 0x16, 0xffff);
    CHECK ("17  .ffff", "%-4x.%-4x", 0x17, 0xffff);

    CHECK ("0000.0001.0012.0123.1234",
	   "%04x.%04x.%04x.%04x.%04x",
	   0, 1, 0x12, 0x123, 0x1234);

    CHECK ("    0001", "%08.4x", 1);		/* 0 - ignored	*/
    CHECK ("       1", "%08.0x", 1);
    CHECK ("       1", "%08.x", 1);

    CHECK ("     000.     001.     012.     123.    1234",
	   "%8.3x.%8.3x.%8.3x.%8.3x.%8.3x", 0, 1, 0x12, 0x123, 0x1234);
    CHECK ("    0012.    0013.    0014",
	   "%08.4x.% 8.4x.%+8.4x", 0x12, 0x13, 0x14);
    CHECK ("000     .001     .012     .123     .1234    ",
	   "%-8.3x.%-8.3x.%-8.3x.%-8.3x.%-8.3x", 0, 1, 0x12, 0x123, 0x1234);

    CHECK ("    0000.  0x0001.  0x0012.  0x0123.  0x1234",
           "%#8.4x.%#8.4x.%#8.4x.%#8.4x.%#8.4x",
	   0, 1, 0x12, 0x123, 0x1234);

    CHECK ("                                                                "
	   "                                                                "
	   "                                                                "
	   "                                                              1",
	   "%255x", 1);
    CHECK ("1                                                               "
	   "                                                                "
	   "                                                                "
	   "                                                               ",
	   "%-255x", 1);
    CHECK ("0000000000000000000000000000000000000000000000000000000000000000"
	   "0000000000000000000000000000000000000000000000000000000000000000"
	   "0000000000000000000000000000000000000000000000000000000000000000"
	   "000000000000000000000000000000000000000000000000000000000000002",
	   "%.255x", 2);

    /* long arg	*/
    CHECK ("0 1 12345678 9abcdef0 7fffffff 80000000 80000001 ffffffff",
	   "%lx %lx %lx %lx %lx %lx %lx %lx",
	   0L, 1L, 0x12345678L, 0x9abcdef0L,
	   0x7fffffffL, 0x80000000L, 0x80000001L, 0xffffffffL);

    /* short arg	*/
    CHECK ("0 2 fffe", "%hx %hx %hx", 0, 2, 0xfffe);
    
    return 0;
}