Right now you're not freeing anything, which is... kind of okay... the same way its okay, if sloppy, to not close open files. It all goes away when the program ends anyway. But if you were doing that 10,000 times in a loop you'd be using 10,000 times as much memory which could definitely be a Bad Thing.
How to free it? As soon as you don't need any of that array anymore, do this:
I have a problem reading characters from keyboard with the scanf function.
Here there is a little piece of code:
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
/* The last 3 libraries are included because in the real program I use some... (4 Replies)
i have a function:
char *pcCityIdToCountryName(ADMIN_DB_DATA *pstHEader, unit uiCityID)
this returns a pointer to CountryName if cityId is given.
to retrieve countryname i give:
char *CountryName;
CountryName = pcCityIdToCountryName(..................);
but when i compile it is giving :... (5 Replies)
i am having a string like
" X1 " ---> string lenght is 30
I have stored this to a chararry . ref
so here ref = " X1 "
now i trim the left space by my function . Si the string now becomes
"X1 " ---> string lenght is 15... (3 Replies)
If one wants to get a start address of a array or a string or a block of memory via a function, there are at least two methods to achieve it:
(1) one is to pass a pointer-to-pointer parameter, like:
int my_malloc(int size, char **pmem)
{
*pmem=(char *)malloc(size);
if(*pmem==NULL)... (11 Replies)
hello all,
my question is not about How code can be rewritten, i just wanna know even though i am not using read only memory of C (i have declared str) why this function gives me segfault :wall:and the other code executes comfortably though both code uses same pointer arithmetic.
... (4 Replies)
Does anyone know?
int x = 1;
int *p = &++x; //ok !
int *q = &x++; //gives an error :O
why the first pointer is ok but the second is an error? (13 Replies)
I'm newbie learner. My all friend use windows just only me use linux.
so i can't solve any problem by myself. i need a solution.
how can i use pointer as a string.
#include<string.h>
#include<stdio.h>
int main()
{
char *s='\0';
gets(s);
puts(s);
return 0;
}
This code work on... (6 Replies)
Hello, I am trying to reverse complement one string and reverse another (NO complement!), both with pointer. My code compiled without error, but did not do the job I wanted.
#include <stdio.h>
#include <stdlib.h>
#include <zlib.h>
#include "kseq.h"
// STEP 1: declare the type of file... (5 Replies)
Discussion started by: yifangt
5 Replies
LEARN ABOUT OSF1
temporary
Temporary(4) Kernel Interfaces Manual Temporary(4)NAME
Temporary - Stores data files during transfers to remote systems
SYNOPSIS
/usr/spool/uucp/SystemName/TM.xxPID.000
DESCRIPTION
The uucp Temporary (TM.*) files store data files during transfers to remote systems. After a Data (D.*) file is transferred to a remote
system by the uucico daemon, the uucp program places it in a subdirectory of the uucp spooling directory named /usr/spool/uucp/SystemName,
where the SystemName directory is named for the computer that is transmitting the file. The uucp program creates a temporary data file to
hold the original data file.
The full pathname of the temporary data file is in the following format: /usr/spool/uucp/SystemName/TM.xxPID.000
where the SystemName directory is named for the computer that is sending the file, and TM.xxPID.000 is the name of the file; for example,
TM.00451.000. The PID variable is the process ID of the job.
FILES
Describes accessible remote systems Contains uucp command, data, and execute files Contain data to be transferred. Contain files that uucp
has transferred
RELATED INFORMATION
Daemons: uucico(8)
Commands: uucp(1), uudemon.cleanu(4), uupick(1), uuto(1), uux(1) delim off
Temporary(4)