What's the best way to include variables in a string using C,i.e if i want to do the following query in C, how would i do that.How do i build the string variable up in C?
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I need to include variables in a system() call. This is that I have:
[code]#include <iostream>
#include <stdio.h>
#include <stdlib.h>
using namespace std;
[Code]....
P.S.: I know this is a pointless redundant program, but it's part of a larger project learning process.
how do you include a string variable as part of a regex in Perl?
View 5 Replies View Relatedcopy string a to string b and change string b with toupper() and count the chars
View 3 Replies View RelatedI've been trying to understand pthread in C a little better. So I made a simple program that takes in a string from the command line and creates a thread to print the string. I've looked online and copied the basic concepts but there are something things I'm confused about. The programs works just fine, but I have questions. Here's what I have so far.
[Code]....
One thing I'd like to know is why the 3rd argument in the pthread_create function which is my SendMessage function needs to be typecasted to a void pointer and then send the address of the function. Also as for the 4th argument, I would see typecasting to void pointer in some of the pthread examples I saw online, but in my case I'm passing a char pointer, would this be correct? In which case would I ever want to pass a void pointer?
Do I need a pthread_exit(NULL) in my main and in the SendMessage function? If so, why? I added the sleep() function so that I could let the pthread_exit function in my SendMessage function execute first. I simply saw that the online examples on pthread had pthread_exit() in both locations.
I have a set of lines as ahown below:
Leon went to school
Leon came back from school..
Leon had dinner...
I have to replace the line containing "dinner" by a single string LUNCH...
I need to creates string suffixes out of a Reference string. for eg. suffixes of abcdefg will be
1)bcdefg
2)cdefg
3)defg
and so on...
create an array of pointers to point to the first few characters and then use that pointer to print the rest of the string.But when i print using the pointer i get GARBAGE values! shudn't std::cout<<ptr[w] print the string following the char it is pointing to? why do i get garbage values?
So if I'm given a location of a file like:
How can I just take the type of the file at the end? I know I can use strrchr() for a period to get the pointer to the period just before file type. Is there a build in string function that will just take the rest of the string from a certain point on forward in the string? I know it wouldn't be much work to make it myself, but I figured I would find out if it already existed before doing it.
Code:
The error is:
Code:
What I want to do is take input of ip4 as a string, convert it to an integer to add 1 to it, then reconvert it back to a string. Its not working.
My full code is:
Code:
I've been given a custom-made string class which handles string, wstring and bstr. It has a number of methods and assignment operators to convert to and from different types. The app I work on compiles happily in VS6 and VS2008, but when trying to compile in Redhat (version 4.1.1 in Redhat 5.0)
[code]....
I have the following two type of strings1: A/D2: A/C/DI am trying to write a subroutine to check whether all of the letters in string 1 appears in string 2. If yes, return true. If not, return false. In the above example, all the letters (A and D) in string 1 are also present in string 2, so I return true.
View 4 Replies View RelatedI can define all variables in tcl programming in a file for instance var.cfgand source the same file in my tcl script such assource var.cfgIs this possible in perl too?
View 3 Replies View RelatedI am working on a Linux embedded C++ project. When I do an install, all of the header files are copied into the target at /usr/include/.My question is, why would the target ever need the C++ header files? It seems to me all the target needs is the executables and the library *.so files.I want to remove the installation of header files into the target but I'm afraid I'm missing something.
View 3 Replies View RelatedI'm learning GTK , and would like to use Codeblocks, and/or KDEvelop, and compile my c files using that, but always get an error about gtk/gtk.h not found, but can't figure out how to add the commands... I normally type gcc -o Program1 main.c `pkg-config --libs --cflags gtk+-2.0` That's a lot to type every time to compile.. Isn't there an easier way, in KDevelop, Monodevelop, and/or Codeblocks to make this step quicker, by adding some sort of I-/usr/include commands, or something?? thanks in advance, =). I looked online for some results, but didn't come across anything handy..
View 1 Replies View RelatedBasically I have a dir that contains my makefile and another directory inside this called source this holds main source files. External to these I have a couple of dirs common and drives.
In my make file I use
To include the protoypes from the headers in the folders common and drivers used by source, this works fine. However in common and drivers I use a few variables that are set in the source dir. I set these with externs inside the common and driver files. However I'm sure I should be able to set the directory path for source inside my makefile. So say I have inside source hardware.h with prototypes, I set DINCDIR = -I/Source -I../Drivers -I../CommonFiles
Then from a c file inside my common folder I say #include "hardware.h" the file should be able to see hardware.h and it's protoypes. However I get:
Is there some way I can get the extern dirs to see the source dir?
The set out is something like;
Do I have the convert the int to a string using stringstream then convert the string to a char? or is there a more direct way?Also is there a way to tell the length of a int?
View 5 Replies View RelatedI am trying to re-write my local web pages in HTML5. My original pages used an include file so that I had a consistent set of links on the top of each page. I used - require("link_list.php");
But this does not seem to be possible in HTML5. I am guessing that there is a way to do this, searching the web suggests object or embed, but these create a new page within my original page, which is not what I want.
For gcc, it seems that there are multiple include paths like /usr/include and /usr/src/linux/include. How do I check the current include path for gcc via command line? How do I edit it?
What about for cc?
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.
I'm using Eclipse to build a small c++ program using boost.
Code:
#include<iostream>
#include<string>
#include <boost/regex.hpp>
[code]....
I can right click on boost::regex and it takes me to the header file regex_fwd.hpp, but when I go to build it, it gives me the error:
Code:
DescriptionResourcePathLocationType
/usr/include/boost/regex/v4/basic_regex.hpp undefined reference to `boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> >
[code]...
I have installed QT on Slackware 13.37 x64 and when I create gui project it works ok, but I need OpenGL.When I add #include <QGLWidget>I get error No such file or directory there is my env
Quote:
CPLUS_INCLUDE_PATH=/usr/lib/qt/include
MANPATH=/usr/local/man:/usr/man:/usr/lib/java/man:/usr/share/texmf/man
KDE_MULTIHEAD=false
HZ=100
[code].....
What is the difference between /usr/local/include and /usr/include? When I compile my program, is both /usr/local/include and /usr/include avaliable? Can I copy a file from /usr/local/include to /usr/include?
View 1 Replies View RelatedI just downloaded the SDL source code. i did compile and make of this code.then i did make install. but i didnt see the files of SDL.h and lib.SDL.*** in /usr/include/ but later i found out that these files are placed in /usr/local/include and /usr/local/lib. how can i specifically install libraries on /usr/include and /usr/lib
View 2 Replies View RelatedSuppose I have the library code in library.cpp. I found that to include the version information in the .so library, I had to use these command forms:
Code: Select allg++ -Wall -fPIC -c library.cpp
g++ -shared -Wl,-soname,library.so.0 -o liblibrary.so.0.1
The howto then continued to recommend creating symbolic links pointing at the newly compiled library. [URL] ....
The result is, during the booting sequence, I am receiving this error:
Code: Select alllibsystemd-login.so.1: no version information available (required by /usr/bin/dbus-daemon).
The library is the one I am working on.
I use OpenSuse 11.3, Eclipse Elios for C++. What do I have to do for using boost? I put #include <boost/regex.hpp>, but it can't find the file. What variable do I have to use?
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grep -r $SEARCHDIR --include="day_$YYYY-$MM-*" -h -o -e PATTERN
The above command does exactly what I want: limit the search of files in $SEARCHDIR to those specified by --include.
I use double quotes rather than single quotes because of the shell variables. I would have thought this would cause the shell to expand the "*" but this doesn't seem to be the case.
Right now we send notification emails using a velocity template (apache and java), the thing is that the notification engine call the Email.vm file to add all the information and variables. This process only attach the information (text) on the .vm file.
We need to send that email on html. The thing is that if we write the html code on the file, when the .vm file is called that email includes the code not the result of the html.
We have tried adding the headers and everything.
The question is:
Is there some way that we can pre-process the html code and include to that email the result?
Or can we tell the .vm file that it should be handle as html? (like php for example <?php ?>, the <html> and </html> tags doesn't work.
this should have been a simple task, but for some reason one of my rollovers plain old isn't workingmy html sheet
Code:
<div style="background:#F5F5E9 url('/sites/all/themes/flossmoore1/images/bricks250.png');padding:1px;padding-
[code]....
I am writing a script that is used to submit a package to testflight from my build system. In order to make the presentation as clear as possible I would like to include some basic HTML in the note section, however, using a < or > causes an error in curl. I have tried different variations of quoting and escaping but have not yet been able to find the solution.
Code:
VERSION_HEADER='<strong>Version: </strong>'
VERSION=`cat $VERSION_NUMBER_FILE`
NOTES+=( "$VERSION_HEADER$VERSION
[Code]...
If I use VERSION_HEADER="'<strong>Version: </strong>'" then the single quotes are submitted.
If I use < or > then those are submitted but the receiving api does not decode them correctly.
Can anyone suggest a way to submit exactly: <strong>Version: </strong>
i got this error im using turbo c++ 3.0.
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