#include<stdio.h>

#include<string.h>

#include<stdlib.h>



int MyStrcmp(char* aStr, char* bStr)

{

if (strlen(aStr) != strlen(bStr))

return 1;


int i = 0, aSize = 0, bSize = 0;

aSize = strlen(aStr) + 1;

bSize = strlen(bStr) + 1;


char* paStr = NULL;

char* pbStr = NULL;


paStr = (char*)malloc(aSize);

if (paStr == NULL)

return -1;

pbStr = (char*)malloc(bSize);

if (pbStr == NULL)

return -1;


memcpy(paStr, aStr, aSize);

memcpy(pbStr, bStr, bSize);

_strupr_s(paStr, aSize);

_strupr_s(pbStr, bSize);


for (i = 0; i < strlen(aStr); ++i)

{

if (*(paStr + i) != *(pbStr + i))

return 1;

}


free(paStr);

free(pbStr);

return 0;

}


int main(void)

{

char aString[] = { "ABC" };

char bString[] = { "abc" };

int rMyStrcmp = 0;

rMyStrcmp = MyStrcmp(aString, bString);


if (rMyStrcmp == 1)

puts("두 문자열은 같지 않습니다.");

else if (rMyStrcmp == 0)

puts("두 문자열은 같습니다.");

else

puts("동적 할당 실패");



return 0;

}