I'm implementing exceptions using longjmp() (since C++ exceptions don't offer the features that I need, including resuming and a "finally" block), like this:
Code:
jmp_buf ex_jmpbuf;
void *ex_exception;
bool ex_resumable;
jmp_buf ex_resumebuf;
[code]....
Why are the curly braces being misinterpreted as arrays here, but not anywhere else?
I changed my post because I found that solution, and didn't want to bother for that. But, since I didnt find a way to delete the post, I thought of updating it: I am beginning to write the code for the philosophers problem. As you know, they can eat, think or wait for forks. When they have 2 forks, one by each side, they eat. Then they set the 2 forks as available, and think.
Each philosopher is a thread. My problem is that it gives segmentation fault, somehow, when I try to initialize. The thing I really don't understand, is why it sometimes gives segmentation fault on initialization #0!!! (But generally on initialization #1) I have set 5 initializations in total, defined by N, that is also the number of threads I'm working on.
PHP Code: #include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<pthread.h>
#include<errno.h>
#include <time.h>
#define N 5
[Code]....
I am interested in a more flexible targeted search in my directories. For example, if I am searching for all .txt .dat and .bat files (then perform an operation), I would think that the following would work:
find . -name '*.{txt,dat,bat}' -exec ...
But I get no results. I am running on Cygwin.I have confirmed that:
find . -name '*.txt' -exec ...
find . -name '*.dat' -exec ...
find . -name '*.bat' -exec ...
all find the aforementioned files. But, find . -name '*.{txt}'still produces no output.
when i compile the device driver of led ,i get the erro like this:
[root@localhost led]# arm-linux-gcc -D__KERNEL__ -DMODULE -I /home/liumeng/lmldd
/linux-2.6.34.1/ -c -O -Wall led.c -o led.o
led.c:34: error: variable `GPIO_LED_ctl_ops' has initializer but incomplete type
[code]....
read(224,114)inum(i,j),jnum(i,j),dx(i,j),dy(i,j),h(i,j),
1
Error: Unexpected array reference at (1)
I'm finalizing the the dual-boot addition that I recently completed. I've added lubuntu to the LT3114u Netbook that I use. That's done, now I'm migrating my user environment back from the Cygwin one that I've been using on Windoze, as of late. One of features that's been useful has been the global environment management possible with the windoze UI functions. As I coded my emacs environment while 'over there' (windoze side), I included a check for the lisp library repository path environment variable EMACSLOADPATH. It is globally available when one logs in, and does not get set in any user scripts, or dot files any to do with CYGWIN or emacs.
While it has been easy enough to set EMACSLOADPATH for the login shell environment, via .bashrc, .profile, and system wide via /etc/profile, I have not been able to have '/usr/bin/emacs23' have EMACSLOADPATH set when invoked via the LXDE UI. Thus, it would appear that emacs is not being initialized with the same environment that any of the shells are (old school?). Thus, what is it that one must update in order to have GNU emacs initialized with the same environment variables as bash? Or, put another way, why aren't the environment variable defined in /etc/profile, ~/.bashrc and/or ~/.profile ending up in the initialized environment upon invocation of emacs23 on lubuntu Linux?
[Code]....
[URL] On above link a structure is defined
Code:
static const struct {
const char *name;
u32 version; /* from RTL8139C/RTL8139D docs */
u32 flags;
[code]....
I am not clear with what is
1) u32 version
2) How u32 version is initialized to HW_REVID(1, 0, 0, 0, 0, 0, 0)
I write a small program to learn overflow. But when I input more than 5 characters (exceed the boundaries of the buffer),I can't get the character that I have initialized. I used gcc4.5.2 to compile this program. Then I used gdb to debug it. I found that when I input more than 5 characters, the variable 'test' was set to 0(ASCII code or '00').
[Code]...
I am trying to dynamically delete and add information into the array "blah"
Code:
int blahsize = 1;
char** blah = (char**) calloc(blahsize+1,sizeof(char*));
Adding information:
Code:
blah[1]=stuff1;
blah[2]=stuff2;
code....
I am using Scientific Linux version 2.6.9-67.EL.cernsmp (root@lxcert-i386) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)) #1 SMP Wed Nov 21 16:22:33 CET 2007. Now I want to install rediff bol in it. so i downloaded rediff bol from the site
Code:
http://linux.softpedia.com/progDownload/rediffbol-prpl-Download-34762.html
after that i have downloaded libpurple and libpurple developement from
[code]....
I have trouble converting a short array to a char array
Code:
short pShort[4] = { 0x41, 0x42, 0x43, 0x44 };
How to convert this to a char array?
I'm writing a PHP program. I've encountered a problem; in the following code I try to pass $_POST['delete'] which is an array as the value of a hidden input to some form, but it doesn't do so.there's something wrong with converting PHP array into HTML array. I'm sure that $_POST['delete'] is not null and is a real array.
echo '<input type="hidden" name="delete[]" value="'.$_POST['delete'].'" />';
(I am using vector() and matrix() functions from "Numerical recipes in C".)There are 100 numbers to be stored in 2D array of 10 rows and 10 columns.100 numbers are stored in a 1D array.I get "segmentation fault" at the line indicated in the segment of my code below:
Code:
:
:
#define size 100
#define nl 1
[code]....
I'm trying to compile a program and it gives me the following:
I checked cmath-util.h:46 and cmath-util.h:48:
I'm not a C person, and the author is unavailable so far.
I looked on the net for such function or example and didin't find anything, thus after having made one i guess it would be legitimate to drop it to see what others thinks of it.
#!/bin/bash
addelementtoarray()
{
local arrayname=$1
[code]....
If i type '{' and hit Enter emacs will automatically put '}'. How can i do this?
View 3 Replies View RelatedI wonder why arrays in the C programming language are pointers to the first element of the array, not the first element of the array itself?
View 14 Replies View RelatedI have a partition that I mount as /data on all of my distros of my multi-boot machine. I am having a bear of a time figuring the right way to address permissions/groups so that any distro can use it (or any removable drive).I tried (in linuxmint) making a group '/data' and assigning the users on my machine to that group, then changing the permissions/groups of the files and folders in that mount as belonging to the /data group, then booted to fedora 15, made the /data group, added the users to that group, I'm not sure that this way will work (it doesn't seem to) or if it's the best way to proceed. some of the things I don't get are:what is the '1000' user and group?is the user/group info on (in or somehow attached) the mount itself?does this seem like a good way to do this?is there on way to 'apply permissions to enclosed files' recursively through the nautilus context menu?
View 3 Replies View RelatedI'm trying to use brace expansion on a string, but I can't seem to get it working with variable substitution:
Code:
$ cat script.sh
#!/bin/bash
echo {1,2,3} # 1.
VAR=1,2,3
[code]....
I've searched google, tldp.org and these forums and I can't seem to find an example of how this would work. I want #2 to work like #1. Any suggestions?
**Edit: I forgot to add, the values in VAR are not sequential and can have multiple digits. For example, VAR=13,17,10.
**Edit2: [URL] The bottom line of code in the first gray block of code shows that you cannot use variables in such an expansion:
Code:
#!/bin/bash
a=1
b=5
echo {$a..$b}
But I'm looking for pasting the complete contents of a variable into these braces, not some portion of it...
I'm trying to use a curly brace expansion in a Bash script, but it's not working for me in Ubuntu. It works in other distributions, like Arch, Fedora and Debian, and it works in Ubuntu as well, but only from the command line, not in a Bash script. I've tried it on multiple Ubuntu (10.04) machines, so it's not specific to one configuration. Here's what I did:
Code:
mkdir a b
Now this works:
[code]....
HP ProLiant ML110
Intel(R) Pentium(R) 4 CPU 3.00GHz
External USRobotics V.90 56K FaxModem
Plugged into first serial port
dmesg | grep 'erial'
[ 2.160168] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[Code]...
This array is supposed to contain 12 elements (names of the month) What I want to achieve is that depending on some user input (a number 1-12) a full name of one of the months will be displayed, eg.
Code:
scanf("%d", &month);
printf("The month is %c", months_names[month]);
I am trying to create an array containing all ASCII characters, how do I create one:
Code:
#!/bin/bash
CHARLIST=( a b c d e f g h i j k l m n o p q r s t u v w x y z
[code]...
I've got a problem...
a[0] = 22
echo $[a[0]]
echoes 22 - that works fine
[code]...
I have a text file from which i read a number of names with their lengths at the run-time.Now i want to created a char array having the length and name as already read from the text file at the run-time. There is no compilation involved. Every thing is happening at the run-time. I tried using STL like map along with malloc but i am unable to name an array at run-time. I can keep some type of mapping with previously created arrays
View 3 Replies View RelatedI've searched around and can't find out how to convert a string ( like "12345" ) into an int array ( x[ 5 ] = { 1, 2, 3, 4, 5 } ; ).
View 4 Replies View Relatedi am trying to represent alphabet into a array, and then i can count the frequency
for example
array[a]=0
array[b]=0
but i find the index of the array seems to be
array[1]=0
array[2]=0
I was try this way get the ascii for them, actually I have done this in java and it is simple.
something like this format
array[ascii{a}-ascii{a}]=0
array[ascii{b}-ascii{a}]=0
I have done a lot of searching , but cannot get what I want.'%d' "'$char" like this would not work.
how to sort the 2 dimensional array below by column 1 then by column 2?
22 55
2222 2230
33 66
44 58
222 240
[Code].....
this is a small part in my awk script. the input data is not in file, but it was manipulated in my script.
[code]...
I manage to write apr4sens into file,works fine.But how to write it into array,which I could later reshape and so on. I tryied like this
group=apr4sens. It doesn't work.
i have a loop which produces new value everytime it runs. i want to store the results in an array. how can i do dat??
loop is like:
a=0
declare v
while ((....))
do
v[$a]="$r"
let a=a+1
done
while doing this it is not treating v as array but as variable and it is overriding the value and old value is lost..i am using bash shell version 3.00.15