I'm making script for automated compiling of one program which would output builds optimized for many architectures. For clearancy, I do each build in it's own catalogue and list of builds with their respective catalogues would be stored as array. I'm using this guide as reference. It describes making array as naming a variable with additional brackets denoting it's position in array.
In my code printf seems to have a problem with elements that have the same letters but a space inbetween. For instance "new foo", "newfoo" are the same for printf
I've got a situation. I'm having GNU bash version 3.00.16(1) on Solaris 10. I need to declare an array say arr1 which will be populated by an output of a command.
declare -a arr1 arr1=( $(/some/command) )
Supposing it will eventually (after executing the command) have element values as -
arr1[0]=1234 arr1[1]=5678 arr1[2]=7890
Now, I need to declare another set of arrays, one for each of the element values above - e.g.
declare -a arr1_1234 declare -a arr1_5678 declare -a arr1_7890
And I also need to populate elements of each of above 3 arrays with output of another command in a loop. So, these arrays will hold values something like -
I'm able to declare and populate arr1[*]. My question is how do I declare, populate and print the subsequent arrays and their elements?I am feeling rather thick to get this working.
Is there a way to compare an array in a while conditions?
I have one array that contains the results of some search and if the script has found all the items, then it should stop, so my idea is to have a while loop � la:
I am writing a script to get the multiples of 2 and 3, place them in an 2 arrays, and then show the common integers. So far everything works fine till the comparision. I don't know how to compare them. Here is the code:
I am trying to get PvPGN working... I have installed all the files, the only thing now is that bntrackd wants to use 'logs/bntrackd.log' for it's logfile, but seeing as it's in /usr/sbin, I want it to use /var/log/bntrackd. This is done with 'bntrackd --logfile=/var/log/bntrackd.log' but when I put that in the script it won't process it as a command (instead splitting it and complaining that I don't have --logfile=/var/log/bntrackd.log installed)
/etc/rc.d/pvpgn:
Code: #!/bin/bash ... [ -z "$PVPGN_DAEMONS" ] && PVPGN_DAEMONS=(bnetd d2dbs d2cs) ... for d in ${PVPGN_DAEMONS[@]}; do
I have a struct (small instance so not using code brackets )
struct random { int a; int b; }example;
What i am trying is
example={0,0};
and it gives an error how to initialize all the entries within a struct to zero? In the above example i have used integers but what if they are some other data structure for example another structure?
I am using semaphore.h I declared a variable of type sem_t. I am able to use the variable without even calling sem_init or sem_open, and it is working properly.if the variable is automatically assigned some value? Also would I run into any trouble doing so?
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 {
Kernel 2.6.21.5, slackware 12.0 as 2.17 [I am speaking here about 80x86 processors, with their segment registers SS, DS, CS, ES.] In a source file for as, I wrote
Code:
.section _STACK .rept 4096 .word 0 .endr
Now, in the .text section, I want to initialize SS, the stack segment, to point to the _STACK section. In other assemblers, there was a special section for the stack, and the linker cared about initializing SS. Here I use a common section for the stack. For a segment such as DS, I could write
mov ax,_DATA mov ds,ax
But I don't think mov ax,_STACK would do with as/ls.how do I initialize SS?
I have a problem on a program,the problem take a very long time when i try to add two big arrays element by elementI know that matlab make adding vectors more faster than adding element by element but I don't know how!!!do any body knew how matlab make vectors operations more faster than element by element???I want to make my calculation more faster because the program is very big
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";
need to process files within multiple directories and transfer these to a remote server. What I had in mind was to use arrays for this; code pasted below (explains it better):
Code: #set the arrays array_A=( fileA* pathtodestA hostA passwordA )
I have a Perl script that has two arrays - they are related. I would like to print out the contents into two columns next to each other.
#!/usr/bin/perl open(PINGFILE, </home/casper/pingdata.txt") or die " can not open file "; my @totalfile=<PINGFILE>; foreach $string(@totalfile) { if ($string =~ m/(^1sping)(?=.*max))/) { push(usecstring,"$string");
I am working on a project that needs to use structures and I'm pretty sure string arrays. First I declare my structures and they must be exactly like this.
a project using bluetooth to send data byte by byte to external devices buti'm not familiar using arrays to read file from another location before sending the data.If you could,do correct my codes.Here's my code,
I'm trying to figure out how to code for this specific type of instance - I want to use a hash and have the key be a reference to an array, and not use the key in the standard way of it being a scalar. Basically, I have a large output that I need to process line by line, and rather have access to it as an array than a big block in a scalar. For the big block hash as a scalar I would do -
How would I code it that I would have access to the key information as an array and not a scalar? I know it needs to be a pointer and we're going to have -> in there somewhere, but not sure how to approach it. Some of the documentaiton I've been reading about referencing I've found a little confusing so far, and trying to figure out how to use them in context of what I'm working on.
I'm writing a code to get the index of the last occurrence of a given substring in a string.
Code: int StringHandler::lastIndexOf(string src, const string s) { unsigned int lastIndex = string::npos; if (src.find(s, 0) == string::npos) { return -1; } else { bool isLast = false; unsigned int i = 0; do { lastIndex = src.find(s, i); if (lastIndex != string::npos) { i = lastIndex + 1; if (i == src.size()) { isLast = true; } } else { isLast = true; } } while (!isLast); } return lastIndex; }
My problem is: execution steps into an if with a false condition! Check the values of i and src.size() at the right panel. How could be possible for the program to run the highlighted statement? The if condition above is false! [URL]. I could use char arrays, for example, but this kind of false validation has happened to me more than once, I'm using G++ 4.5 with these flags: -O0 -g -Wall -c
I just started programming in PHP so I haven't figured out how to do this yet, but I have a multi-dimensional array that I need to sort by one column. That's fine...but I need the sort to ignore case! Right now I have it sorted by 'name' (the other column is 'uid').
The problem is that by the default the sort is case-sensitive so the array looks like this: Code: Apple 4015 Banana 4011 Cherry 4045 avocado 4046
I want to be able to sort the the 'name' column in a case-insensitive manner so that the array actually looks like: Code: Apple 4015 avocado 4046 Banana 4011 Cherry 4045
How to accomplish this? Just FYI I'm not actually sorting the PLUs for fruits...but it was a simple example. I'm actually doing this for a Facebook application.
I am curious if there is a way to describe and use variable sized multi-dimensional arrays in C using pointers. I mean, for 1-dimensional array e.g. I can use the following piece of code:
... int i , N; int *array; scanf("%d", &N); array = (int*) malloc(N*sizeof(int)); for (i=0; i<N; ++i) array[i] = i; // Assigning values to the array for (i=0; i<N; ++i) printf("%d ", array[i]); // Printing the assigned values free (array); ...
But what about the two dimensional array[N][M] ? I guess I have to use a double pointer e.g: int **array. But how exactly? Note that I use C90 and not C99.
