Programming :: Use Of Static Elements In Cpp?
May 27, 2010
i've got certain functions now declared as static and their being used as pointers. So, moving on I then added a variable which so happened to be used in both static and non static functions. Here's some testbed code, the variable in question is 'window':
Code:
//g++ -Wall -I/usr/include/ -L/usr/X11R6/lib -lX11 -lXi -lXmu -lglut -lGL -lGLU -lm main.cpp -o run
#include <GL/glut.h>
#include <stdlib.h>
[Code]....
In short, I can't see the point of using a class to wrap all of this. Never having been taught programming i'm unsure as to the best method for structuring an application like this. Should (would you design) this initial section be a class?
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Feb 12, 2010
I'm having some problems on the line with ***. This is from a OpenEntidade.java class file and I'm trying to update EmprestadorView's variables.
EmprestadorView.java
public class EmprestadorView extends FrameView {
...
OpenEntidade.java
-----------------
public class OpenEntidade extends javax.swing.JFrame {
[code]....
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Jan 27, 2011
I have a char*[] array:
Code:
char* myarray[] = {"Hello", "there!", "LQ"};
and I wish to use/ write a function to find the number of elements in myarray (in this case, its 3).
*equivalent of .NET's array.size() that returns number of elements in array
How do I achieve it?
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Apr 27, 2010
created this array and the last two elements will not pop - phil and sylvia never get up to bat.
1#!/usr/bin/perl
2use strict;
3use warnings;
[code]...
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Jul 20, 2011
I have an array with 15 elements, and I want to break it down into three columns. When the array is split into a the three elements - however on the iteration, it does not conform to that structure.
Code:
#!/usr/bin/perl -w
use strict ;
[code]....
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Jun 23, 2011
im trying to receive a string from user, then divide it into groups of strings with 3 elements only. meaning if input is:
12345 it should give 123 and 45
123456 it should give 123 and 456
1234567 it should give 123 and 456 and 7
anyway what happens based on my code is that it works fine with first two (when it has groups of 3 elements and 2 element, and also when it has groups of all 3 elements) but for the last case (when makes groups of 3 elements and 1 group of 1 element) it shouws as "123 456 7 D"!! meaning it adds one extra character to the last element out of no where!
here is my code:
Code:
#include <iostream>
#include <conio>
struct array
{
[Code]....
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Dec 10, 2008
I have something like this:
$arr_hash{'produce'}{'veggies'}[0] = Broccoli
$arr_hash{'produce'}{'veggies'}[1] = Cauliflower
$arr_hash{'produce'}{'veggies'}[2] = Carrots
[code]...
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May 16, 2010
I am trying to learn how to include common elements on every page. At first I made the mistake of calling it ssi but I do not think that is correct in php5. I downloaded phpb3 to look at and they are not doing it that way. they do it like this.
Code...
Problem is I can not find any articles that explain it. I even looked at the php manual and did not find it. Could someone explain this or point me in the right direction.
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Jul 15, 2009
For Perl I need to understand a few things. It's unlikely that anyone will be able to give me direct answers but if they could point outI'm trying to hack down an existing script http://eoylpac.org/source/eoy.pl. What I need to be able to do (in a nut shell):1. Open a database2. Read the values for each uniq id and execute a subroutine for each of those values. (The subroutine already exists in the above file 'do_pdf').
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Mar 13, 2011
I have .txt.gz files that store queries made on a browser, d my job is to analyze them.The information is stored in a xml-like style.Quote:
<browser>lwp-trivial/1.41</browser>
<http_code>200</http_code>
<keywords />
[code]...
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Sep 18, 2010
For a search box on my site, I want a textbox, which will let the user input the term to be searched for, and next to it I want a drop down list that'll have, for example, "Fruit" and "Vegetables" as categories to be searched within. How do I do the HTML for this? (so that the arguments to my search.php script will be eg. "search.php?text=apples&type=fruit" ? )
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Mar 29, 2010
Is there some way to access HTML elements via javascript through some internal ID?
For instance, given a form like:
Code:
<form name="myForm">
<input type="text" />
<input type="text" />
[Code]....
I think I've seen some way to do this before but I'm not certain
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Oct 12, 2010
How can I declare an array with the number of elements is larger than 2^32 ?
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Apr 30, 2010
...and returning the index of the found element in its array.
I have:
for ((i=0; i < ${#array1[@]}; i++)); do
# Read each line of the file test
if [[ $(eval "sed -n '$(($i+1))'p test") == *${array2[0]}* ]]
stuff
I want to find the index of the found substring in array2 and only if it isn't found, move on to the next element of array2. I don't know the size of array2 so that [0] has just got to go.
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Apr 13, 2010
I'm trying to make a combo box which should have elements dynamically taken from a database. I've an Exam Table,and it has columns Sno,Ename,Month,year. i need the combobox to list to the elements that are present in Ename.
i read some things in the web and tried that out in the netbeans. it said to rightclick the combobox and set bind ->elements and bind->selecteditem. But i'm not sure how to set the binding expressions inorder to get the required list in the combobox.
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Feb 24, 2010
When I parse a XML file, should I rely on the order of elements?
For example say we have:
Should I rely on the above order?
Would the following still be valid:
I'm trying to find out if a well formed XML document should have an ordered structure, or if it's still valid XML if it has no order.
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Jul 5, 2010
I want to declare an array with fixed size and initialize all the elements to zero. i want all elements of x to be zero and i dont know how to specify the size of array. also i have problem in comparing values in loops. my script is as follows:
i=0
let k=0
declare -a x
for U in ${S[@]}
do
for (( T=1276082023 ; $T -le 1276082139 ; (( T++ )) ))
[Code]...
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Jun 13, 2010
I have made a very simple program in SDL that draws one image four times on a window.However I wanted it to be statically linked so the end user wouldn't have to install SDL and SDL-image in order to get the program working.
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Mar 31, 2010
To create a static library, or to add additional objectiles to an existing static library, I can use a command like this:ar rcs my_library.a file1.o file2.oBut how to add an existing static library to my own static library. I have created my own static library using the command above and want to link against the library libuuid.a (placed in /usr/lib/).
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Oct 15, 2010
I am stuck with a problem to link static libraries with gcc. There is no problem with source files since I am able to compile in a machine where the static library is installed. I am compiling with the following: Code: :~/Emotion/pjproject-1.0.3/third_party 157% gcc -Wall -I/portaudio/include -o rec patest_record.c -L./lib -lportaudio-x86_64-unknown-linux-gnu
[Code]....
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Jun 10, 2010
There's a problem with static linking (and no problems with dynamic linking).
Here's my code:
Quote:
And makefile rule:
Quote:
That's dynamic linking. And it works perfectly. If i use static linking
Quote:
There is an undefined reference error:
Quote:
As nm shows there's a symbol named BuzzerInit in static library.
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May 12, 2011
My project looks like this:
Home
The Team [no-page]
-X
-Y
-Z
Projects [no-page]
-Coding [no-page]
--A
--B
--C
-Desing [no-page]
--E
--F
-Security [no-page]
--G
--H
Note: the Code/Design/Security projects pages (A,B,C,D...) will be at start around 35 pages, and will grow. My index.php is something like this:
PHP Code: .....
What I would like to know is how to build the content (the home-main.php)? Do it dynamically based on a link something like this index.php?page=coding_b, and put in the index.php page a number of 35 if/else statements to cover all the project pages or ... static, creating every page for the projects menu when I create the menu? I check if a page 'pro-co-a.php' exists, if not I create it based on some template and do the query to get the content from db or? How to organize the pages, if using static page?
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Jun 7, 2011
The code below defines an array of structures in a class. I would like this to be a Static array and then initialize the array in a initialization method. I understand that initialization lists are the way to go but due to the size and complexity of the array I plan on using (the example below is a simple snippet that illustrates the problem) I would like to use the initialization method. However, I cant even get this thing to compile. The error says the reference to the ArrayOfStructs in the initialization routine is undefined.
l_long_Island
P.S. This is the error message
undefined reference to `ClassWithStaticArray::ArrayOfStruts'
class ClassWithStaticArray {
public:
struct IntegerStruct
{
[code]....
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Nov 3, 2010
I'm creating a static lib via cmake,and when I view the .a binary file with less/more/cat I see functions from my time_tools.c, but not my other_api.c The directories structure is:
Code:
CMakeLists.txt
time/CMakeLists.txt
time/time_tools.c
time/time_tools.h
[code]....
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Sep 3, 2010
I am trying to compile certain Linux general utilities like ls, lsof, ping, netstat with static linkers and not sure how do that. Does any one aware how to compile the application with statically rather than dynamically.
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Aug 27, 2009
My code needs to link to some libraries. In my project file, I specify linker to link to abc library, for example. By default, does gcc link to libabc.a or libabc.so ? What if I really need to specify static or shared, how do I do that?
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Oct 2, 2010
I need to compile a program and make it portable to other computers, but it needs some external libraries and I don't want them to be linked dynamically, I would like to compile them as one single executable or at least compile them in the same directory as the main output files. The program is sphinx>, it has its own configure and make scripts. I know I can run g++ with the -static flag, but I don't know how to do this with make or configure. This is the ./configure --help output
[Code]....
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Aug 27, 2010
I was going through a file known as linux-2.6.34/kernel/timer.c and found following code.
static inline void
timer_set_base(struct timer_list *timer, struct tvec_base *new_base)
{
timer->base = (struct tvec_base *)((unsigned long)(new_base) |
tbase_get_deferrable(timer->base));
}
I want to understand what is it doing. What is the meaning of static inline in above? I searched and came across
[Code]...
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Feb 10, 2010
The following is my Makefile, I wanted to add a staic library named libtimer.a. I'm using the following Makefile. Please let me know how to add this static library:
Makefile:-
Quote:
all:gcc -Wall -lrt -lm -pthread usbserialapp.c usbserialinit.c environ.c -o usbserial
It produces "usbserial" executable.
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Jun 3, 2009
I have been working on this for a long time.
I could get the static libcurl library ( a "libcurl.lib" file and a "curl.h" file), which supposed to be working under Windows.
Yet I tried Visual c++ 6.0 but it wasn't working at all.
Some idea on that ? I don't mind to try MinGW and Dev C++ if it will really work. (Cygwin is not good since it require client to have cygwin.dll in run-time folder).
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