|
|
Sponsored Content
Top Forums
Programming
Problem with function which reutrns pointer to a value
Post 87623 by jim mcnamara on Wednesday 26th of October 2005 11:06:32 AM
10-26-2005
|
|
10 More Discussions You Might Find Interesting
1. Programming
could any one tell why the following is showing segmentation fault while using **ptr
but working fine using **a
#include<stdio.h>
... (1 Reply)
Discussion started by: useless79
1 Replies
2. Programming
Hello all
im trying to build function that will return void function pointer
what is mean is ( not working )
the main function
void * myClass::getFunction(int type){
if(type==1)
return &myClass::Test1;
if(type==2)
return &myClass::Test2;
}
void myClass::Test1(){... (1 Reply)
Discussion started by: umen
1 Replies
3. Programming
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)
Discussion started by: aaronwong
11 Replies
4. Programming
Hi.
Problem: I have to parse the payload of a packet. The payload could be in Big Endian Format (network byte order) or little. That depends on a flag present in the header of the packet.
Solution: A horrible solution could be to check for that flag everytime I have to read a field in the... (11 Replies)
Discussion started by: emitrax
11 Replies
5. Programming
Hi guys.
how a functions such fdopen, ... can return pointer?
are these functions use static memory(variables)? (6 Replies)
Discussion started by: majid.merkava
6 Replies
6. Programming
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)
Discussion started by: mscoder
2 Replies
7. Programming
Hi,
In the below C code,
#include <stdio.h>
void print() {
printf("Hello\n");
}
int main() {
void (*f)() = (void (*)()) print;
f();
(*f)();
}
I wonder, how the syntaxes "f()" and "(*f)()" are treated as same without any error? Is this an improvement or ANSI/ISO... (1 Reply)
Discussion started by: royalibrahim
1 Replies
8. Programming
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)
Discussion started by: nishrestha
13 Replies
9. Programming
Have difficulty to understand this pure C code to only print vowels twice from input string. Questions are commented at the end of each place.
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
/*
*Demonstrate the use of dispatch tables
*/
/*Print a char... (11 Replies)
Discussion started by: yifangt
11 Replies
10. Programming
I am passing a char* to the function "reverse" and when I execute it with gdb I get:
Program received signal SIGSEGV, Segmentation fault.
0x000000000040083b in reverse (s=0x400b2b "hello") at pointersExample.c:72
72 *q = *p;
Attached is the source code.
I do not understand why... (9 Replies)
Discussion started by: jose_spain
9 Replies
LEARN ABOUT DEBIAN
wand-config
Wand-Config(1) General Commands Manual Wand-Config(1) NAME
Wand-config - get information about the installed version of the Magick Wand SYNOPSIS
Wand-config [--cflags] [--cppflags] [--exec-prefix] [--ldflags] [--libs] [--prefix] [--version] DESCRIPTION
Wand-config prints the compiler and linker flags required to compile and link programs that use the Wand Application Programmer Interface. EXAMPLES
To print the version of the installed distribution of Wand, use: Wand-config --version To compile a program that calls the Wand Application Programmer Interface, use: cc `Wand-config --cflags --cppflags --ldflags --libs` program.c OPTIONS
--cflags Print the compiler flags that were used to compile libWand. --cppflags Print the preprocessor flags that are needed to find the Wand C include files and defines to ensure that the Wand data structures match between your program and the installed libraries. --exec-prefix Print the directory under which target specific binaries and executables are installed. --ldflags Print the linker flags that are needed to link with the Wand library. --libs Print the linker flags that are needed to link a program with libWand. --version Print the version of the Wand distribution to standard output. COPYRIGHT
See http://www.imagemagick.org/script/license.php AUTHORS
John Cristy, ImageMagick Studio LLC Wand 2 May 2002 Wand-Config(1)