factorization's Issues
check 배열 사용이유에 대한 질문
check 배열을 만드신 이유가 소수인 경우에만 체크를 하려고 하신 것 같습니다. 그런데 코드 123줄부터의
while (n % i == 0) n /= i;
이 부분을 보면 이미 작은 소수들로 나눴기 때문에 120줄의
if (check[i] == 0 && n % i == 0)
이부분에서의 check[i] == 0
을 지워도 똑같이 작동될 것 같아 질문 드립니다.
make 명령어 실행시 warning 발생
make 명령어를 사용할 시 다음과 같은 warning이 납니다. 개발환경은 MacOS입니다.
./factorization.c:169:20: warning: passing 'unsigned char [65536]' to parameter
of type 'char *' converts between pointers to integer types with different
sign [-Wpointer-sign]
find_prime_number(check, sqrt_number(number), number);
^~~~~
./factorization.c:111:30: note: passing argument to parameter 'check' here
void find_prime_number(char *check, unsigned int n_sqrt, unsigned int n)
^
1 warning generated.
complete
타입 관련해 warning이 나는 것 같은데 함수 선언할 때 매개변수 타입을 수정하시거나 gcc 옵션을 제거하면 해결할 수 있을 것 같습니다.
check 배열을 unsigned char로 만든 이유가 있나요?
일반적으로 unsigned char는 표현 범위가 0~255이지만, 아스키 문자가 아닌 문자들을 다룰때 주로 사용한다고 알고 있습니다! 혹시 check 배열을 unsigned char로 만드신 이유가 있나요??
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