我刚刚更新到Kubuntu 12.04。除了最新定制的emacs之外,一切都很好。它现在说:
emacs: symbol lookup error: emacs: undefined symbol: gtk_window_set_has_resize_grip
所以我决定重新建造emacs。为此,我已经git pull了最新的快照,并且像往常一样做了所有的事情,但是现在我在编译过程中遇到了一个错误:
In file included from /home/boris/its/blds/emacs/lib-src/emacsclient.c:76:0:
../lib/getopt.h:196:8
根据的说法,POSIX库不包括getopt.h。然而,我在unistd.h中发现了这个
#ifdef __USE_POSIX2
/* Get definitions and prototypes for functions to process the
arguments in ARGV (ARGC of them, minus the program name) for
options given in OPTS. */
# define __need_getopt
# include <getopt.h>
#endif
这是否意味着在包含unistd.h时会隐式
我正在尝试在Archlinux中安装vpcs (GNS3需要),但在运行makepkg命令后出现以下错误:
**In file included from hv.c:45:0:
./getopt.h:53:5: error: conflicting types for ‘getopt’
int getopt(int argc, char** argv, char* optstr);
^~~~~~**
In file included from /usr/include/bits/getopt_posix.h:27:0,
from /usr/incl
我在我的代码中有以下几行。我还将该文件包含在项目内的头列表中。但是在编译时,我得到了下面的错误。我的错误是什么?
#ifndef WIN32
# include <netinet/in.h>
# include <arpa/inet.h>
# include <unistd.h>
# include <netdb.h>
# include <sys/socket.h>
# include <sys/un.h>
# include <pwd.h>
# include <grp.h>
#
我使用下面的代码从嵌入式板的SPI端口输出数据(olimex 233-micro-它不是板上的特定问题)。当我运行代码时,ioctl返回“坏地址”。我正在修改上的代码,它工作得很好。有人能告诉我我做错了什么吗?
root@ubuntu:/home# gcc test.c -o test
test.c:20: warning: conflicting types for ‘msg_send’
test.c:16: note: previous implicit declaration of ‘msg_send’ was here
root@ubuntu:/home# ./test
errno:B
我应该编写一个python解析器,它返回cpp文件中的所有包含。所以我使用了如下代码:
def _main():
from clang.cindex import Index
from optparse import OptionParser
filter=['/usr/lib','usr/include']
p=OptionParser()
(o,a)=p.parse_args()
i=Index.create()
t=i.parse(None,a)
for i in t.get_include
我想要实现Linux头通讯的副本。如果用户在./cprogram head -(option here)中输入,我希望选项出现,但出于某种原因,我的代码从未输入options switch语句。例如,命令行代码./cprogram head -n从不输入case 'n':语句。代码在if语句之前工作,以检查argv[1]是否为"head"。
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
int main(int argc, char **argv) {
int o;
int w = 10;
while ((o = getopt(argc, argv, "w")) != -1) {
switch (o) {
case 'w' :
w = ato
我正在将我在linux上编写的代码导入Visual,并将unistd.h文件替换为我在堆栈溢出中找到的这个文件:
#ifndef _UNISTD_H
#define _UNISTD_H 1
/* This is intended as a drop-in replacement for unistd.h on Windows.
* Please add functionality as neeeded.
* https://stackoverflow.com/a/826027/1202830
*/
#include <stdlib.h>
#include <i
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
int main(int argc, char **argv) {
int o;
int w = 10;
while ((o = getopt(argc, argv, "w::")) != -1) {
switch (o) {
case 'w' :
if (o