PS: I usually pass 'char *x' not 'char x[]' as it is more truthful and you should not be moving arrays by value!
It's passed by reference either way.
All giving a function parameter an array type does is stop code in the function from modifying the pointer value. Considering making a pointer copy they can modify is the first thing done in this function though, they might as well make it a pointer and be done with it.
********************************
Following is not the real issue. The issue is with popen.
Plz continue forward with the thread to get a better picture.
********************************
Hi,
I am working on a customised ftp application. In it we have used sprintf to store a UNIX command... (7 Replies)
Hi,
Can someone help me to figure out whether this code is to write file to /tmp/TIMECLOCK directory or just to asign a variable with "/tmp/TIMECLOCK/name.log_copy.pid" as the string?
I am looking into an old C program and could not figure out where in the code that creates... (1 Reply)
Hi
My requirement is to convert the following to C++
char buffer;
sprintf(buffer,"%s %-50s %6s %-6d %s\n",a.substr(0,5),a.substr(10,20))
Since the buffer is of varying length, i cannot hardcode the value as 90.
i would like to convert the buffer to string object so that it can receive any... (1 Reply)
Hello,
In perl lang, I have create a string (@str) by sprintf but unfortunately when program printed it out, only I could saw a number like 1. Certainly printf doesn't problem. How I can convert a string that are result of sprintf to a common string format??!
Thanks in advance.
PLEASE HELP ME. (2 Replies)
I would like to assign the output of printf to a variable in perl , it give me back a "1" instead of the time. How can I stuff the variable with what printf returns?
Here is my code:
#!/usr/bin/perl
$time = localtime(time);... (3 Replies)
Hello again,
I don't know about regexp so I throw this question here:
How can I detect files where, for example:
sprintf (var1, "hello %s %s", sub1);
The problem here is that we have 2 %s and only a variable.
Or... the inverse:
sprintf (var1, "hello %s %s", sub1, sub2, sub3,...subn);
... (2 Replies)
Hi
I have many problems with a script. I have a script that formats a text file but always prints the same error when i try to execute it
The code is that:
{
if (NF==17){
print $0
}else{
fields=NF;
all=$0;
while... (2 Replies)
I need to right-pad with zeros a string by using (s)printf.
I looked up the manual and tried with
printf("%-19s", buffer);
which right-pad the string with spaces. So I tried
printf("%019s", buffer);
which left-pad the string with zeros. So I tried both
printf("%-019s", buffer);... (9 Replies)
Hi,
Trying to join 2 files with awk (file1 has variable number of fields; file 2 has constant number of fields)
file1:
hook1|AA|BB|CC|DD
hook2|EE|FF
file2:
hook1|11|22
hook2|33|44
hook3|55|66
output:
hook1|11|22|AA|BB|CC|DD
hook2|33|44|EE|FF
hook3|55|66
What I tried so far:... (3 Replies)
Discussion started by: beca123456
3 Replies
LEARN ABOUT DEBIAN
algorithm::checkdigits::m10_010
CheckDigits::M10_010(3pm) User Contributed Perl Documentation CheckDigits::M10_010(3pm)NAME
CheckDigits::M10_010 - compute check digits for Postscheckkonti (CH)
SYNOPSIS
use Algorithm::CheckDigits;
$pck = CheckDigits('postcheckkonti');
if ($pck->is_valid('85-12345678-7')) {
# do something
}
$cn = $pck->complete('85-12345678');
# $cn = '85-12345678-7'
$cd = $pck->checkdigit('85-12345678-7');
# $cd = '7'
$bn = $pck->basenumber('85-12345678-7');
# $bn = '85-12345678'
DESCRIPTION
ALGORITHM
1. The sequence of digits is processed left to right. For the first digit we assume a carry forward of 0.
2. For each digit d(i) the carry forward cf(i) is the digit at the the position p in the sequence ( 0, 9, 4, 6, 8, 2, 7, 1, 3, 5 ), where
p is (d(i) + cf(i-1)) modulo 10.
3. The check digit is the difference of the sum from step 3 to the next multiple of 10.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.10.0 2008-05-17 CheckDigits::M10_010(3pm)