10-13-2009
10 More Discussions You Might Find Interesting
1. Programming
Dear all,
In my code,i am planning to use memset function to re-initialise an array before populating it everytime. Will using memset function be an overload to the program? (3 Replies)
Discussion started by: ranj@chn
3 Replies
2. UNIX for Dummies Questions & Answers
HI all ,
please find the piece of code below
char *t;
char *f;
char buf;
memset(buf,0,50);
after that i am assigning memory
for (i=0; i<100; i++)
{
t = buf+(i*6);
f = "ARUN";
}
my question ..
1) i have run this it is... (7 Replies)
Discussion started by: arunkumar_mca
7 Replies
3. UNIX for Advanced & Expert Users
Dear Friends,
Can any one tell me the difference between memset and calloc function in C.
Regards,
Selvi (7 Replies)
Discussion started by: salvi
7 Replies
4. Programming
Hello there,
My mulithreaded application (which is too large to represent the source code here) is crashing after installing FreeBSD 7.1-RELEASE/amd64.
It worked properly on others machines (Dual Cores with 4GB of RAM - FreeBSD 6.2-RELEASE/i386).
The current machine has 2x Core 2 Duo... (1 Reply)
Discussion started by: Seenquev
1 Replies
5. Programming
Hi guys,
my tool works fine in gentoo, ubuntu now im trying to port it to windows but bzero/bcopy I read aren't working on windows and for better portability I should of use memset() so im trying to translate
bzero(buffer,256);in
printf("MAIL TO");
strcpy(buffer, rcp);
... (4 Replies)
Discussion started by: Jess83
4 Replies
6. Programming
Hi,
Could anyone tell me the reason why the following program crashes?
class A {
int x;
public:
A() {
cout << "from A()" << endl;
}
~A() {
cout << "from ~A()" << endl;
}
};
class B : public A {
public:
B() {
cout << "from B()"... (2 Replies)
Discussion started by: royalibrahim
2 Replies
7. UNIX for Advanced & Expert Users
Hi All,
We have a 32bit Motif Gui application. Now we ported the application from Solaris to Linux and the system is crashing very frequently. On our analysis we could find that this issue happened when we are closing the forms in our application. When the forms are closed we will delete the forms... (0 Replies)
Discussion started by: sanushchacko
0 Replies
8. Solaris
Production server crashes when there is no traffic on it. Can only recover by going to ALOM and reboot the server. This seems to happen about the same time every month. The only good thing is the server is not in production at the time of the crash.
I have been unable to locate any information in... (5 Replies)
Discussion started by: Joeentech
5 Replies
9. Shell Programming and Scripting
I want to develop an application. Simply,
Open this application via the web
Access database to retrieve some information
Do some validation and process inputs
Create a file based on a master file from a UNIX server
Put that file to the UNIX server
That is it. I have got suggestions to... (5 Replies)
Discussion started by: PikK45
5 Replies
10. Emergency UNIX and Linux Support
Hi,
memset call is failing on solaris for me. I wrote below code and that also fails. Any hints?
void *memset(void *dst, int c, size_t n)
{
if (n) {
char *d = dst;
do {
*d++ = c;
} while (--n);
}
return dst;
} (2 Replies)
Discussion started by: skyineyes
2 Replies
LEARN ABOUT HPUX
pbmreduce
pbmreduce(1) General Commands Manual pbmreduce(1)
NAME
pbmreduce - read a portable bitmap and reduce it N times
SYNOPSIS
pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]
DESCRIPTION
Reads a portable bitmap as input. Reduces it by a factor of N, and produces a portable bitmap as output.
pbmreduce duplicates a lot of the functionality of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
faster.
pbmreduce can be used to "re-halftone" an image. Let's say you have a scanner that only produces black&white, not grayscale, and it does a
terrible job of halftoning (most b&w scanners fit this description). One way to fix the halftoning is to scan at the highest possible res-
olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce. You can even correct the brightness of an image, by
using the -value flag.
OPTIONS
By default, the halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
can be used to specify simple thresholding. This gives better results when reducing line drawings.
The -value flag alters the thresholding value for all quantizations. It should be a real number between 0 and 1. Above 0.5 means darker
images; below 0.5 means lighter.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)
AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
02 August 1989 pbmreduce(1)