//=================================================================
//
//        strxfrm1.c
//
//        Testcase for C library strxfrm()
//
//=================================================================
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//=================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     ctarpy, jlarmour
// Contributors:  
// Date:          2000-04-30
// Description:   Contains testcode for C library strxfrm() function
//
//
//####DESCRIPTIONEND####

// CONFIGURATION

#include <pkgconf/system.h>
#include <pkgconf/libc_string.h>   // Configuration header

// INCLUDES

#include <pkgconf/isoinfra.h>
#include <string.h>
#include <cyg/infra/testcase.h>

// FUNCTIONS


// Functions to avoid having to use libc strings

static int my_strlen(const char *s)
{
    const char *ptr;

    ptr = s;
    for ( ptr=s ; *ptr != '\0' ; ptr++ )
        ;

    return (int)(ptr-s);
} // my_strlen()


static int my_strcmp(const char *s1, const char *s2)
{
    for ( ; *s1 == *s2 ; s1++,s2++ )
    {
        if ( *s1 == '\0' )
            break;
    } // for

    return (*s1 - *s2);
} // my_strcmp()


static char *my_strcpy(char *s1, const char *s2)
{
    while (*s2 != '\0') {
        *(s1++) = *(s2++);
    }
    *s1 = '\0';

    return s1; 
} // my_strcpy()


#if CYGINT_ISO_MAIN_STARTUP
int main( int argc, char *argv[] )
#else
void cyg_user_start(void)
#endif
{
    char x[300];
    char y[300];
    int  ret;

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "
                  "strxfrm() function");
    CYG_TEST_INFO("This testcase provides simple basic tests");

    // Check 1
    my_strcpy(x, "Nine rings for men doomed to die");
    ret = strxfrm(y, x, my_strlen(x)+1);
    if (my_strcmp(x, y) == 0) 
        CYG_TEST_PASS("Simple strxfrm()");
    else
        CYG_TEST_FAIL("Simple strxfrm()");
    // Check return value
    CYG_TEST_PASS_FAIL( (my_strlen(x) == ret),
                        "Simple strxfrm() return value");

    // Check 2
    x[0] = '\0';
    my_strcpy(y, "Seven rings for the dwarves in their halls of stone");
    ret = strxfrm(y, x, my_strlen(x)+1);
    if (my_strcmp(y, "") == 0)
        CYG_TEST_PASS("strxfrm() of empty string");
    else
        CYG_TEST_FAIL("strxfrm() of empty string");
    // Check return value
    CYG_TEST_PASS_FAIL( (my_strlen(x) == ret),
                        "strxfrm() of empty string return value");

    // Check 3
    my_strcpy(y, "Seven rings for the dwarves in their halls of stone");
    ret = strxfrm(NULL, y, 0);

    // Check return value
    CYG_TEST_PASS_FAIL( (my_strlen(y) == ret),
                        "strxfrm() of NULL string for 0 bytes return value");

//    CYG_TEST_NA("Testing is not applicable to this configuration");

    CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C library "
                    "strxfrm() function");
} // main()


// EOF strxfrm1.c
