void main()
{
int a={1,2,3,4,5,6,7,8,9,10};
int *p=a;
int *q=&a;
cout<<q-p+1<<endl;
}
The output is 10, how?
if we give cout<<q it will print the address, value won't print....
if we give cout<<p it will print the address, value won't print....
p has the base addr; q... (1 Reply)
All ..
I am having a pointer array . And trying to store the addess into that pointer array . please see below the problem i faced
code:
int cnt1;
char *t_array;
char *f_array;
for(cnt1=0; cnt1<1000; cnt1++)
{
t_array =... (1 Reply)
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)
Hi all,
Can anyone provide help with getting the right syntax regarding array/pointers in C in the following code? Can't locate a specific example which clarifies this...
Say I declare a typedef to an array of pointers to some type...
/**
* An array of ptrs to sections
*/
typedef... (4 Replies)
if i create an array of pointers to a structure "struct node" as:
struct node *r;
and create "n" number of "linked lists" and assign it to the various struct pointers r using some function with a return type as structure pointer as:
r=multiplty(.......) /*some parameters*/
is... (2 Replies)
Hi guys,
Besides the points bellow, what would best practices for scripting be ?
1) set the PATH
2) unset the current environment (set -u ?)
3) (re)set the IFS to default value - space (IFS="" <- is this correct ?)
4) check the return code for each action inside the script (cd, rsync,... (1 Reply)
I am struggling with the pointer to 2D-array (cf: 2D array of pointers). Can anybody help me elaborate how the pointer x moves in the memory to access the individual of y, especially the high lighted lines?
I have talked to one of the curators of the forum, but I am still not quite clear.
Here... (1 Reply)
Discussion started by: yifangt
1 Replies
LEARN ABOUT SUSE
glutinitwindowposition
glutInitWindowPosition(3GLUT) GLUT glutInitWindowPosition(3GLUT)NAME
glutInitWindowPositionWindowPosition, glutInitWindowSize - set the initial window position and size respectively.
SYNTAX
void glutInitWindowSize(int width, int height);
void glutInitWindowPosition(int x, int y);
ARGUMENTS
width Width in pixels.
height Height in pixels.
x Window X location in pixels.
y Window Y location in pixels.
DESCRIPTION
Windows created by glutCreateWindow will be requested to be created with the current initial window position and size.
The initial value of the initial window position GLUT state is -1 and -1. If either the X or Y component to the initial window position is
negative, the actual window position is left to the window system to determine. The initial value of the initial window size GLUT state is
300 by 300. The initial window size components must be greater than zero.
The intent of the initial window position and size values is to provide a suggestion to the window system for a window's initial size and
position. The window system is not obligated to use this information. Therefore, GLUT programs should not assume the window was created at
the specified size or position. A GLUT program should use the window's reshape callback to determine the true size of the window.
EXAMPLE
If you would like your GLUT program to default to starting at a given screen location and at a given size, but you would also like to let
the user override these defaults via a command line argument (such as -geometry for X11), call glutInitWindowSize and glutInitWindowPosi-
tion before your call to glutInit. For example:
int main(int argc, char **argv)
{
glutInitWindowSize(500, 300);
glutInitWindowPosition(100, 100);
glutInit(&argc, argv);
...
}
However, if you'd like to force your program to start up at a given size, call glutInitWindowSize and glutInitWindowPosition after your
call to glutInit. For example:
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitWindowSize(500, 300);
glutInitWindowPosition(100, 100);
...
}
SEE ALSO
glutInit, glutCreateWindow, glutCreateSubWindow, glutReshapeFunc, glutGet
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 glutInitWindowPosition(3GLUT)