Using pointers to struct members as args to functions Post: 302542851

9 More Discussions You Might Find Interesting

1. Programming

Pointer to a struct (with pointers) * glibc detected * double free

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;...

2. Homework & Coursework Questions

C++ struct pointers & functions

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...

3. Programming

functions that manipulate void pointers

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...

4. UNIX for Dummies Questions & Answers

How to access a struct within a struct?

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"?

5. Homework & Coursework Questions

Passing pointers to struct

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...

6. Programming

Passing an instance of struct to functions in other src files

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...

7. Programming

Storing C++-struct in file - problem when adding new item in struct

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...

8. Programming

Dynamically enumerating the members of a C++ struct

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...

9. Shell Programming and Scripting

Store args passed in array but not the first 2 args

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

LEARN ABOUT CENTOS

ibv_open_device

IBV_OPEN_DEVICE(3)					  Libibverbs Programmer's Manual					IBV_OPEN_DEVICE(3)

NAME

       ibv_open_device, ibv_close_device - open and close an RDMA device context

SYNOPSIS

       #include <infiniband/verbs.h>

       struct ibv_context *ibv_open_device(struct ibv_device *device);

       int ibv_close_device(struct ibv_context *context);

DESCRIPTION

       ibv_open_device() opens the device device and creates a context for further use.

       ibv_close_device() closes the device context context.

RETURN VALUE

       ibv_open_device() returns a pointer to the allocated device context, or NULL if the request fails.

       ibv_close_device() returns 0 on success, -1 on failure.

NOTES

       ibv_close_device()  does  not  release all the resources allocated using context context.  To avoid resource leaks, the user should release
       all associated resources before closing a context.

SEE ALSO

       ibv_get_device_list(3), ibv_query_device(3), ibv_query_port(3), ibv_query_gid(3), ibv_query_pkey(3)

AUTHORS

       Dotan Barak <dotanba@gmail.com>

libibverbs							    2006-10-31							IBV_OPEN_DEVICE(3)