April 2024
Beginner to intermediate
364 pages
7h 2m
Korean
Content preview from 우아한 C언어 코딩 패턴
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C
5
어떤 파일에서 특정 키워드들에 대한 구문 분석을 시행하고 탐색된 키워드 정
보를 반환하는 함수를 구현하고자 한다.
C에서 오류 상황을 나타내는 표준적인 방법은 함수의 반환값을 통해 오류
정보를 제공하는 것이다. 오류에 대한 추가 정보가 필요한 경우, 전통적인 C 함
수는 종종
errno
변수(errno.h 참조)를 설정하여 특정 오류 코드로 지정한다.
이렇게 하면 호출자는
errno
를 통해 오류 정보를 확인할 수 있다.
하지만, 다음과 같은 코드는 굳이 상세한 오류 정보까지는 필요하지 않기 때
문에
errno
대신 반환값을 사용한다. 다음은 예제 코드 초기 버전이다.
int parseFile(char* file
_
name)
{
int return
_
value
=
ERROR;
FILE* file
_
pointer
=
0;
char* buffer
=
0;
if(file
_
name!
=
NULL)
{
if(file
_
pointer
=
fopen(file
_
name, "r"))
{
if(buffer
=
malloc(BUFFER
_
SIZE))
{
/*
파일
내용에
대한
구문
분석
*/
return
_
value
=
NO
_
KEYWORD
_
FOUND;
while(fgets(buffer, BUFFER
_
SIZE, file
_
pointer)!
=
NULL)
{
if(strcmp("KEYWORD ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.