JohnGraham: Would const be useful if the struct was as follows?
Yes, (assuming you want all the elements of your array to be const) since that's qualifying the array. It seemed like you wanted to make a const type (which you could do with a typedef).
I am using a structure defined as follows
struct gene_square
{
double *x;
double *y;
};I have class, with a member function which is a pointer of this type:
gene_square* m_Genes;I am allocating memory in the constructors like this:
m_Genes = new gene_square;
for (ii=0;... (1 Reply)
Hi All,
My latest assignment (practice not coursework!) is to write prototype interactive exam/test console application. I've used structs to store the question information (not sure if this was the best way to do it?) and I have the following code that outputs each question and it's possible... (0 Replies)
I have two or more linked lists that have the same names for their "next". For example,
struct server_t {
sockaddr_in * sin;
server_t * next_;
}
struct player_t {
char name;
player_t * next_;
}
How can I get a function to take in either type and manipulate the pointers?
I... (3 Replies)
Can someone tell me how to do this?
Just a thought that entered my mind when learning about structs.
First thought was:
struct one
{
struct two;
}
struct two
{
three;
}
one->two->three
would this be how you would access "three"? (1 Reply)
Hi, i'm trying to copy a struct into a binary file using the unix instruction write, so i declare and fill the struct "superbloque" in one function "initSB" and then i pass the pointer to another function called bwrite (for block write) which calls write. The problem is that i call the function... (2 Replies)
I am trying to work out the best syntax for a relatively simple operation. The goal is to declare an instance of a struct and pass it around to be populated and have the data manipulated. There is an extra wrinkle in that the functions are in different src files.
The main is simple,
#include... (5 Replies)
Hi,
I have received an application that stores some properties in a file. The existing struct looks like this:
struct TData
{
UINT uSizeIncludingStrings;
// copy of Telnet data struct
UINT uSize;
// basic properties:
TCHAR szHost; //defined in Sshconfig
UINT iPortNr;
TCHAR... (2 Replies)
In C++ there is a struct with the following structure:
typedef struct myStruct
{
string s_date;
float fA;
float fB;
float fC;
.....
float fZ;
} myData;
After some computations on the values of the struct members are inserted into a database table:
myData... (4 Replies)
Store args passed in array but not the first 2 args.
# bash
declare -a arr=("$@")
s=$(IFS=, eval 'echo "${arr}"')
echo "$s"
output:
sh array.sh 1 2 3 4 5 6
1,2,3,4,5,6
Desired output:
sh array.sh 1 2 3 4 5 6
3,4,5,6 (2 Replies)
Discussion started by: iaav
2 Replies
LEARN ABOUT DEBIAN
iv_timer_unregister
iv_timer(3) ivykis programmer's manual iv_timer(3)NAME
iv_timer_register, iv_timer_unregister, iv_timer_registered - deal with ivykis timers
SYNOPSIS
#include <iv.h>
struct iv_timer {
struct timespec expires;
void *cookie;
void (*handler)(void *);
};
void IV_TIMER_INIT(struct iv_timer *timer);
void iv_timer_register(struct iv_timer *timer);
void iv_timer_unregister(struct iv_timer *timer);
int iv_timer_registered(struct iv_timer *timer);
DESCRIPTION
The functions iv_timer_register and iv_timer_unregister register, respectively unregister, a timer with the current thread's ivykis event
loop. iv_timer_registered on a timer returns true if that timer is currently registered with ivykis.
When a timer that is registered becomes 'ready', due to the current system clock value becoming greater than or equal to the timer's
->expires member field, the callback function specified by ->handler is called in the thread that the timer was registered in, with
->cookie as its first and sole argument. When this happens, the timer is transparently unregistered.
The application is allowed to change the ->cookie and ->handler members at any time. The application is not allowed to change the
->expires member while the timer is registered.
A given struct iv_timer can only be registered in one thread at a time, and a timer can only be unregistered in the thread that it was reg-
istered from.
There is no limit on the number of timers registered at once.
See iv_examples(3) for programming examples.
SEE ALSO ivykis(3), iv_examples(3)ivykis 2010-08-15 iv_timer(3)