包括路径问题 [英] Include path question
问题描述
您好，
假设存在foo / bar.h，并且在
foo / bar中包含为''#include" bar.h"''。 C。 `gcc -c foo / bar.c`将编译好（即找到
文件）。这是一个gcc扩展或C编译器标准功能
foo /将被搜索而不显式传递-Ifoo？
$ cat foo / bar.h
#define目标1
$ cat foo / bar.c
#include< stdio.h>
#include" bar.h"
int main（void）{
printf（"％d \ n"，GOAL）;
返回0;
}
-`J''
-
Hello,
assume foo/bar.h exists, and is included as ''#include "bar.h"'' in
foo/bar.c. `gcc -c foo/bar.c` will compile it fine (i.e. finds the
file). Is this a gcc extension or a C compiler standard feature that
foo/ will be searched without explicitly passing -Ifoo?
$ cat foo/bar.h
#define GOAL 1
$ cat foo/bar.c
#include <stdio.h>
#include "bar.h"
int main(void) {
printf("%d\n", GOAL);
return 0;
}
-`J''
--
推荐答案
cat foo / bar.h
#define目标1
cat foo/bar.h
#define GOAL 1
cat foo / bar.c
#include< stdio.h>
#include" bar.h"
int main（void）{
printf（"％d \ n"，GOAL）;
返回0;
}
-`J''
-
cat foo/bar.c
#include <stdio.h>
#include "bar.h"
int main(void) {
printf("%d\n", GOAL);
return 0;
}
-`J''
--
Jan Engelhardt说：
Jan Engelhardt said:
你好，
假设foo / bar.h存在，并包括在内''#include" bar.h"''在
foo / bar.c中。 `gcc -c foo / bar.c`将编译好（即找到
文件）。这是一个gcc扩展或C编译器标准功能
foo /将被搜索而不显式传递-Ifoo？
Hello,
assume foo/bar.h exists, and is included as ''#include "bar.h"'' in
foo/bar.c. `gcc -c foo/bar.c` will compile it fine (i.e. finds the
file). Is this a gcc extension or a C compiler standard feature that
foo/ will be searched without explicitly passing -Ifoo?
标准没有指定与
实现接口的详细信息。
- -
Richard Heathfield
Usenet是一个奇怪的地方 - dmr 29/7/1999
http://www.cpax.org.uk
电子邮件：rjh在上面的域名（但显然放弃了www）
The Standard does not specify the details of interfacing with an
implementation.
--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999
http://www.cpax.org.uk
email: rjh at above domain (but drop the www, obviously)
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