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//=================================================================

//

//        memcpy1.c

//

//        Testcase for C library memcpy()

//

//=================================================================

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//=================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     ctarpy, jlarmour

// Contributors:  

// Date:          2000-04-30

// Description:   Contains testcode for C library memcpy() function

//

//

//####DESCRIPTIONEND####

// INCLUDES

#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()

int main( int argc, char *argv[] )

{

    char x[300];

    char y[300];

    void *ret, *ptr1, *ptr2;

    char *c_ret;

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "

                  "memcpy() function");

    CYG_TEST_INFO("This testcase provides simple basic tests");

    // Check 1

    ptr1 = x;

    ptr2 = y;

    my_strcpy(x, "Great shot kid! That was one in a million!");

    ret = memcpy(ptr2, ptr1, my_strlen(x) + 1);

    CYG_TEST_PASS_FAIL( (my_strcmp(x, ptr2)==0), "Simple copy" );

    // Check return value

    CYG_TEST_PASS_FAIL( (my_strcmp(ret, ptr2)==0), "Simple copy return value");

    // Check 2

    ptr1 = x;

    ptr2 = y;

    my_strcpy(x, "");

    my_strcpy(y, "xxxx"); // Bogus val to get overwritten

    ret = memcpy(ptr2, ptr1, 1);

    c_ret = ret;

    if ((*c_ret == '\0') && (y[0] == '\0') && (y[1] == 'x'))

        CYG_TEST_PASS("Simple copy with boundary check worked");

    else

        CYG_TEST_FAIL("Simple copy with boundary check failed");

    // Check 3

    ptr1 = x;

    ptr2 = y;

    my_strcpy(x, "xxxx");

    my_strcpy(y, "yyyy");

    ret = memcpy(ptr1, ptr2, 0);

    c_ret = ret;

    if ((*c_ret =='x') && (x[0] == 'x'))

        CYG_TEST_PASS("Simple copy with size=0 worked");

    else

        CYG_TEST_FAIL("Simple copy with size=0 failed");

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

    CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C library "

                    "memcpy() function");

} // main()

// EOF memcpy1.c