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Old 05-11-2013, 09:07 AM   #1
loveternity
LQ Newbie
 
Registered: Apr 2013
Distribution: Ubuntu 12.04
Posts: 3

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Question A simple Compilation Error


In my program,there is a function like this:
Code:
int show_filetype(const struct stat *restrict nbuf)
{
     //.....
}
When i compile the program, it shows that
"expected ';' , ',' or ')' before 'nbuf'"

But i don't know why.
who can help me....

Last edited by loveternity; 05-11-2013 at 09:17 AM.
 
Old 05-11-2013, 09:25 AM   #2
loveternity
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Registered: Apr 2013
Distribution: Ubuntu 12.04
Posts: 3

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The full code:
Code:
//stats_t.c
//
//Testing stat(),fstat(),lstat()
//

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>

int show_filetype(const struct stat *restrict nbuf);

int main(int argc,char *argv[])
{
	int fd;
	struct stat buf;

	if (argc == 1)
	{
		printf("Usage: a.out <filename/path>\n");
		exit(-1);
	}

	if (stat(argv[1],&buf) < 0)
	{
		char buf[50];
		sprintf(buf,"stat %s error",argv[1]);
		perror(buf);
	}

        //print the infomation of struct stat

	printf ("st_mode = %d\t\t\t",buf.st_mode);
	show_filetype(&buf);
	printf ("st_ino = %ld\n",buf.st_ino);
	printf ("st_dev = %d/%d\n",major(buf.st_dev),minor(buf.st_dev));
	if (S_ISCHR(buf.st_mode) || S_ISBLK(buf.st_mode))
	{
		printf (" (%s) st_rdev = %d/%d\n",
				(S_ISCHR(buf.st_mode)) ? "character" : "block",
				major(buf.st_rdev),minor(buf.st_rdev));
	}
	printf ("st_nlink = %d\n",buf.st_nlink);
	printf ("st_uid = %d\n",buf.st_uid);
	printf ("st_gid = %d\n",buf.st_gid);
	printf ("st_size = %ld\n",buf.st_size);
	printf ("st_atime = %ld\n",buf.st_atime);
	printf ("st_mtime = %ld\n",buf.st_mtime);
	printf ("st_ctime = %ld\n",buf.st_ctime);
	printf ("st_blksize = %ld\n",buf.st_blksize);
	printf ("st_blocks = %ld\n",buf.st_blocks);


	exit(0);
}

int show_filetype(const struct stat *restrict nbuf)
{
	
	char * ptr;
	if (S_ISREG(nbuf.st_mode))
		ptr = "regular";
	else if (S_ISDIR(nbuf.st_mode))
		ptr = "directory";
	else if (S_ISCHR(nbuf.st_mode))
		ptr = "character special";
	else if (S_ISBLK(nbuf.st_mode))
		ptr = "block special";
	else if (S_ISFIFO(nbuf.st_mode))
		ptr = "fifo";
	else if (S_ISLNK(nbuf.st_mode))
		ptr = "symbolic link";
	else if (S_ISSOCK(nbuf.st_mode))
		ptr = "socket";
	else
		ptr = "** unknown mode **";
	printf("%s\n",ptr);

	return 0;
}

Last edited by loveternity; 05-11-2013 at 09:26 AM.
 
Old 05-11-2013, 09:26 AM   #3
pan64
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Registered: Mar 2012
Location: Hungary
Distribution: debian/ubuntu/suse ...
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probably this? http://gcc.gnu.org/onlinedocs/gcc/Re...-Pointers.html
 
1 members found this post helpful.
Old 05-11-2013, 09:33 AM   #4
loveternity
LQ Newbie
 
Registered: Apr 2013
Distribution: Ubuntu 12.04
Posts: 3

Original Poster
Rep: Reputation: 0
Wink

Quote:
Originally Posted by pan64 View Post
Thank u!
In GCC the restrict keyword is __restrict__
So i change it like this:
Code:
int show_filetype(const struct stat *__restrict__ nbuf)
it's right!
 
  


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