The way I've been using arrays currently have been:
#!/bin/ksh
set -A myArray
myArray=value1
myArray=value2
myArray=value3
myArray=value4
Is there a way I can assign values to an array that will automatically place the value into the next element in the array like:
myArray=value1... (4 Replies)
I have to add a variable value to an array, something like this:
......
@my_array_name = $value_of_this_variable;
This doesnt seem to work, any ideas why?
Thanks! (4 Replies)
hi every body,
i donot know how to assign a array varible with a file
see i having file
more file
property1 Name
property2 Address
the above two line are tab Space seperated between the property and its value
i want to seperate it and assign to... (1 Reply)
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
Hi all,
I wrote a script that reads inputs from user and store in array named "input". The number of elements in the array is not fixed - determined only after user exit the while loop that reads the array values :
x=1
echo "Enter first value"
read input
while } != "exit" ]
do
... (1 Reply)
How do I assign values to reference variables?
I am assigning a variable name to --> $user_var
Then I am trying to change its underlying variable value by
$((user_var))=$user_value .. its failing,,
Please let me know if there is a way to do this dynamically..
FileA.props... (5 Replies)
hi
My script as below
#!/bin/ksh
for i in `seq 1 7`
do
a=$(awk '{print $i}' /home/rama/expenese.txt)
done
for i in `seq 1 7`
do
echo "${a}"
done
content of expense.txt is as below
5032 210179 3110 132813874 53488966 11459221 5300794
I want output as... (6 Replies)
Hi ,
i have file which is having two fields in it (#delimited)
ABC#FILE_01.DAT
DEF#FILE_02.DAT
i want to write first field values to one array example A_01 and second field values to B_02 array
please let me know how to do this ,my final requirement i have send out a mail for each record... (2 Replies)
I know that
@food = %fruit;
Works. But how do I assign %fruit and %veggies to @food ? (2 Replies)
Discussion started by: popeye
2 Replies
LEARN ABOUT DEBIAN
dynarr_resize
DYNARR(3pub) C Programmer's Manual DYNARR(3pub)NAME
dynarr, dynarr_init, dynarr_resize, dynarr_free - simple dynamic arrays
SYNOPSIS
#include <publib.h>
void dynarr_init(struct dynarr *da, size_t elsize);
int dynarr_resize(struct dynarr *da, size_t newsize);
void dynarr_free(struct dynarr *da);
DESCRIPTION
These functions make it easier to use dynamic arrays, i.e., arrays that are allocated with malloc(3) and resized with realloc(3). Below is
a typical code fragment for implementing a dynamic array that is resized as more input is read.
char *p, *line;
size_t alloc, len;
len = 0;
alloc = 1024;
if ((line = malloc(alloc)) == NULL) abort();
while (fgets(line + len, alloc-len, stdin) != NULL) {
len = strlen(line);
alloc += 1024;
if ((p = realloc(alloc)) == NULL) abort();
alloc = p;
}
(The error handling is intentionally simplified.) Below is the above fragment with the dynarr(3).
struct dynarr da;
dynarr_init(&da);
while (fgets((char *)da.data + da.used, da.alloc-da.len, stdin) != NULL) {
da.used = strlen(da.data);
if (dynarr_resize(&da, da.alloc + 1024) == -1) abort();
}
The code is a bit simpler, and all the memory allocation details and most of the error checking code is hidden away.
The dynamic array is represented by a struct dynarr:
struct dynarr {
void *data;
size_t alloc, used;
};
The interface to the dynamic allocation has intentionally been made unopaque.
dynarr_init initializes a struct dynarr to be an empty array, dynarr_resize sets its size to be newsize, and dynarr_free frees the array
(it will become an empty array again).
RETURNS
dynarr_resize returns -1 if it failed, 0 if it succeeded. It does not change the array in any way if it failed.
SEE ALSO publib(3), malloc(3), realloc(3), strdup(3)AUTHOR
Lars Wirzenius (lars.wirzenius@helsinki.fi)
Publib C Programmer's Manual DYNARR(3pub)