i am compiling the following program in linux. it's in c language. after the compilation with gcc when i run the executable file. it asks for input. but when i enter a name. i prints "Segmentation fault" and then terminate the program. can you please help me.
Inside a loop i'm populating a string variable. Because csh doesn't have very good support for arrays I thought of doing this. I want to add a new line character to the end of the concatenation each time the loop iterates. Then at the end print this variable out.
I tried " and some resources said it was just a "". Neither work. What am I doing wrong?
I want to use SED to do the following: In a text file replace any occurrences of the three character string ZZZ with a quotation mark "and. replace all occurrences of a comma with a semi-colon. It is the S/ / / command which is stumping me on the first issue...inparticular how to get the replace string to be quote.
Like the following c++ program, I define a pointer of char type in the class named "test". In the function init1(), str="hello1" , what is the existing period of "hello1". Whether the string "hello1" will be invalid if the function init1() exits ? then "str" point to the invalid field in memory. When will "hello1" and "hello2" be released by OS ?
Operating System: CentOS 5.4 I have a bash script that runs another php script to return a decrypted password. The return value is right but when I concatenate it with another string, I would not have the whole string. To better understand the problem, here is my script:
I want to match some filename in some text, but the filenames I have no control of, so "[" can "]" can appear in the filenames.so do I always have to use sed to addslashes to these variables before I have to grep them? and what other characters have I missed other than "[", "]", "."?
We're migrating from Tomcat on Linux to Glassfish on Windows and I'm trying to make it easier to find the servlets that we don't currently have implicitly mapped in the Tomcat web.xml files for contexts. What I've done is copy all our contexts to a temp directory and written a script so that I can loop through each context, find the files that are not mapped inside a package then check if the java file is a servlet or not. From there I store each java file that matches, strip off the extension and then search in the context web.xml for a match then output to the screen.
The problem that I'm running into is that I know there are class files that should be returned and yet they are not being displayed. I'm not a Linux guy, so I'm just looking for a little help to see if I'm missing something obvious. I've attached the code for the script below.
Code: # for all contexts for context in `ls "/var/tomcat/temp/script/" | grep -v servletmap.sh` do echo $context # for all java files without a package
I'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 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?
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.
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)
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.
I have this statement which greps .csv files. Code:my @files=grep {$_ =~ /.csv/}What about if I needed to get files with the word 'hosts' in the middle?
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?
Ctrl-c with middle mouse button (MMB) trigger in running bash script trigger.
The key combination Ctrl-C or "^C" with the keyboard triggered on a running bash script stands for "signal interrupt" (SIGINT) and terminates the process.
For my workflow in the test phase, how I could do that with the MMB-Buffer, followed by the modified script command:
I was reading Kernighan Ritchie book chapter 4 which deals with character pointers.I am not able to understand following different type of declarations
Code: char aname[][15] = { "Illegal month", "Jan", "Feb", "Mar" }; char amessage[] = "now is the time";
