09-12-2007
array of strings
Hi
I need a better idea to implementing following in my code.
I need to store 80 long strings that will be used to display one by one in my GUI application. now i am storing those 80 long string in following two dimentational array.
uchar vpn_alm_long_str[MAX_ALARM][1024]={ }
each index will be an string index .
all strings would be defined static and this variable would be a global one .
so the issues that i can forsee
some issue with where this will be stored like in data segment (but don't know exactly the issue?/)
does not look good to store such big data structure in memnory when they are not going to be used always.
Insetad , if we can write all these strings in a file in a special format , and on run time we extract these string from that file , that sounds a good idea .
at least that file would be stored on disk not in the memory , and that would be brought in the memory only when it will be required to read and even that would be the only a string not the complete file ..
pls any other idea??
dav
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a perl script with an array of clients.
@arr = ("The ABC Corp", "AA Corp.", "BB Corp");
If I run
@a = sort (@arr);
I will get
@a = ("AA Corp", "BB Corp", "The ABC Corp");
but I want
@a = ("AA Corp, "The ABC Corp", "BB Corp");
How do I sort array without changing... (2 Replies)
Discussion started by: photon
2 Replies
2. Programming
I've been struggling with this for quite some time. I decided I should get some help with this. Nothing is working. I'm getting a segmentation fault or out of bounds error when I try to load the entries in the for loop.I'm really frustrated. :mad: Compiling isn't the problem. It's crapping out on... (5 Replies)
Discussion started by: sepoto
5 Replies
3. Shell Programming and Scripting
I am wanting to take a list of strings and loop through a list of textfiles to find matches. Preferably with awk and parsing the search strings into an array.
// Search_strings.txt
tag
string
dummy
stuff
things
// List of files to search in
textfile1.txt
textfile2.txt
The... (6 Replies)
Discussion started by: sdf
6 Replies
4. Shell Programming and Scripting
I have a file search_strings.txt filled with search strings which have a blank in between and look like this:
S. g. Erh.
o. J.
v. d. Chijs
g. Ehr.I would like to search the strings in the second given Textfile.txt and it shall return the column number.
Can anybody help with the correct... (3 Replies)
Discussion started by: sdf
3 Replies
5. Programming
I am trying to get userinput from stdin and store the lines in an array.
If i do this:
using a char **list to store strings
allocate memory to it
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv)
{
char *prog = argv;
char **linelist;
int... (5 Replies)
Discussion started by: tornow
5 Replies
6. UNIX for Dummies Questions & Answers
i have a list of apps that i need to forcequit and, from time to time, that list changes. perfect excuse to manage a single array! however, my strings with spaces aren't passing as i'd like them to. here's the simple script:
#!/bin/sh
#-----Array
apps=( firefox-bin firefox... (6 Replies)
Discussion started by: hungryd
6 Replies
7. Shell Programming and Scripting
Hi,
Can anybody help me in finding the difference between two array elements with the help of code pls.
purge=("Purge Concurrent Request and/or Manager Data" "Purge Signon Audit data" "Purge Obsolete Workflow Runtime Data" "Purge Logs and Closed System Alerts")
purge_1=("Purge Obsolete... (3 Replies)
Discussion started by: Y.balakrishna
3 Replies
8. Programming
I put together a C function to add strings to a dynamic array of strings (mostly for educational purpose to explain pointers to my kid). It works, but sometimes one or two strings in the array becomes corrupted. Running example on 64 bit Ubuntu, gcc ver. 4.8.4
Hope my code is self-explanatory:
... (2 Replies)
Discussion started by: migurus
2 Replies
9. Shell Programming and Scripting
i need to add 2 string variables into a positioning array , repeatedly - in loop.
First string in $2, second to $3 then up to the desired count incrementing the "position".
Using set -- alone does not increment the count so I end up with 2 variables in the array.
How do I increment the... (7 Replies)
Discussion started by: annacreek
7 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I have a file with around 1000 rows and one of the fields is an account number. I have been provided with a few account numbers, when any of the account number appears in a row then the row has to be deleted.
Can we place the account numbers in an array and use awk or sed for this task?... (3 Replies)
Discussion started by: mrcool4
3 Replies
index(3C) Standard C Library Functions index(3C)
NAME
index, rindex - string operations
SYNOPSIS
#include <strings.h>
char *index(const char *s, int c);
char *rindex(const char *s, int c);
DESCRIPTION
The index() and rindex() functions operate on null-terminated strings.
The index() function returns a pointer to the first occurrence of character c in string s.
The rindex() function returns a pointer to the last occurrence of character c in string s.
Both index() and rindex() return a null pointer if c does not occur in the string. The null character terminating a string is considered
to be part of the string.
USAGE
On most modern computer systems, you can not use a null pointer to indicate a null string. A null pointer is an error and results in an
abort of the program. If you wish to indicate a null string, you must use a pointer that points to an explicit null string. On some
machines and with some implementations of the C programming language, a null pointer, if dereferenced, would yield a null string. Though
often used, this practice is not always portable. Programmers using a null pointer to represent an empty string should be aware of this
portability issue. Even on machines where dereferencing a null pointer does not cause an abort of the program, it does not necessarily
yield a null string.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
bstring(3C), malloc(3C), string(3C), attributes(5), standards(5)
SunOS 5.10 24 Jul 2002 index(3C)