memcmp2.c

eCos操作系统源码

//=================================================================
//
//        memcmp2.c
//
//        Testcase for C library memcmp()
//
//=================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// or inline functions from this file, or you compile this file and link it
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//####ECOSGPLCOPYRIGHTEND####
//=================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     ctarpy, jlarmour
// Contributors:  
// Date:          2000-04-30
// Description:   Contains testcode for C library memcmp() function
//
//
//####DESCRIPTIONEND####

// INCLUDES

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

// CONSTANTS

#define NUM_ROBUSTNESS_RUNS 300

// 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 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];
    char z[300];
    int ctr;
    int fail;

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "
                  "memcmp() function");
    CYG_TEST_INFO("This testcase tests robustness, and may take some time");


    fail = 0;
    for (ctr = 0; ctr < NUM_ROBUSTNESS_RUNS; ctr++)
    {
        my_strcpy(x, "Spare a talent for an old ex-leper");
        my_strcpy(y, "Spare a talent for an old ex-leper");
        my_strcpy(z, "I was hopping along, when suddenly he");

        if (memcmp(x, y,my_strlen(x)) != 0)
        {
            fail = 1;
            break;
        }
        if (memcmp(x, z, my_strlen(z)) == 0)
        {
            fail = 1;
            break;
        } // if
    } // for

    CYG_TEST_PASS_FAIL( (fail==0), "Robustness test");

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

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


// EOF memcmp2.c