Sponsored Content
Top Forums Programming passing object to function, columns class Post 302513194 by Corona688 on Tuesday 12th of April 2011 02:35:42 PM
Old 04-12-2011
Keeping them as vectors but not using 2/3 of the vector positions is very wasteful. Why have all those different types anyway, instead of one class that contains a string and has operators to return float, int, char? It'd let you keep everything in one vector.

Why do you store each and every row in a vector when you don't need them later? Why not process the row then discard it?

Quote:
I would like to make processing a function where I would add a row to the string stream, select a target variable in the class for the parsed data to go, and pass the stringstream and the target to a loading function.
I don't understand this at all, but I think I sort of get your pseudocode -- you want to load data from a string.

Well, you already have a function that loads strings, though it opens files and reads lines to get the strings. You could make a more general-purpose string loading member function that's used by your file loader and external things alike.

If you really wanted to process stringstreams, you could do that with your existing file-loading code, since stringstreams act just like file streams. You just need to make everything more general: A function that loads from a stream, which your file-opening member could use too, instead of just one member which loads from a filename and nothing else.
 

10 More Discussions You Might Find Interesting

1. Programming

Listing function exports from object file

Is it possible to view all the functions exported by a given object file? "dump -tv" comes the closest, but what exactly am I looking for to determine whether the symbol exists in the object file? Essentially, I have a library that requires a call to "xdr_sizeof" and the compile is failing... (5 Replies)
Discussion started by: DreamWarrior
5 Replies

2. Programming

How to make a function friend to both base and derived class

Hi, I have a base class and derived a class from the base class, i want to print & read the data for the object created for the derived class,so i have overloaded both the << and >> operators and also have done the foward declaration. Below is the code snippet, #include <iostream> class... (3 Replies)
Discussion started by: ennstate
3 Replies

3. Shell Programming and Scripting

Passing global variable to a function which is called by another function

Hi , I have three funcions f1, f2 and f3 . f1 calls f2 and f2 calls f3 . I have a global variable "period" which i want to pass to f3 . Can i pass the variable directly in the definition of f3 ? Pls help . sars (4 Replies)
Discussion started by: sars
4 Replies

4. Programming

Handling a signal with a class member function

Hello, i am using the sigaction function to handle the SIGCHLD signal.Is it possible to use a class member function as the handler function (the sa_handler member of the sigaction structure)? The function's signature is: void (*sa_handler)(int);so i don't think i can use a static member function... (2 Replies)
Discussion started by: Zipi
2 Replies

5. Shell Programming and Scripting

How to Call external function in .C or .So (Shared Object)

Hi, Anybody know any way to Call with Shell Script an external function wrote in .C or .So (Shared Object) on AIX enviroment and returning parameters of .C or .SO to Shell Script? Tks!! (6 Replies)
Discussion started by: rdgsantos
6 Replies

6. Programming

question about function object

I have a code as following: #include <iostream> #include <algorithm> #include <list> using namespace std; //the class Nth is a predicates class Nth{ private: int nth; int count; public: Nth(int n):nth(n),count(0){} bool operator()(int){ ... (2 Replies)
Discussion started by: homeboy
2 Replies

7. UNIX and Linux Applications

opends- help with custom object class

we have 2.2.0 of opends running on RedHat 2.6.21 and we're trying to setup a structure that will suit our needs. One of the things we'd like to do is create our own custom object classes based off some of the existing ones you get out of the box. The opends documentation covers this here (sorry, it... (1 Reply)
Discussion started by: snafu
1 Replies

8. Programming

Created a wrapper for a function in a class.

I have a class called Parsing with the following function. I want to create a wrapper for it, so that I call it using GetReal rather than GetFloat. Bit confused on how to do this. class Parsing { private: int Length; // int Ptr; ... (3 Replies)
Discussion started by: kristinu
3 Replies

9. Programming

How to initialize an object with another object of different class?

How to initialize an object of class say "A", with an object of type say "B". The following code give the error message "error: conversion from âAâ to non-scalar type âBâ requested" #include <iostream> using namespace std; class B; class A{ public: A() { cout <<"\nA()" << endl; } ... (1 Reply)
Discussion started by: techmonk
1 Replies

10. Programming

C++ : Base class member function not accessible from derived class

Hello All, I am a learner in C++. I was testing my inheritance knowledge with following piece of code. #include <iostream> using namespace std; class base { public : void display() { cout << "In base display()" << endl; } void display(int k) {... (2 Replies)
Discussion started by: anand.shah
2 Replies
SCROLLKEEPER-REBUILDDB(8)				      System Manager's Manual					 SCROLLKEEPER-REBUILDDB(8)

NAME
scrollkeeper-rebuilddb - rebuild the scrollkeeper document catalog database SYNOPSIS
scrollkeeper-rebuilddb [-p path ] [-v] [-q] DESCRIPTION
This rebuilds the ScrollKeeper database from the original OMF metadata files and documents. Under normal situations, this tool is not nec- essary. It is useful however if the database becomes corrupt, which could be caused by interruption of ScrollKeeper during an update of the database. Errors and warnings are logged to /var/log/scrollkeeper.log. OPTIONS
-p path Use path as the ScrollKeeper database directory. -v Verbose. Show warnings and error messages in addition to logging them to /var/log/scrollkeeper.log. -q Run in quiet mode, suppressing output of all but the most serious warning and error messages to STDOUT. Note that most output to the log file will be unchanged. FILES
/var/lib/scrollkeeper/scrollkeeper_docs /var/lib/scrollkeeper/TOC/<docnumber> /var/lib/scrollkeeper/<locale>/scrollkeeper_cl.xml /var/lib/scrollkeeper/<locale>/scrollkeeper_extended_cl.xml /var/log/scrollkeeper.log AUTHOR
Laszlo Kovacs <laszlo.kovacs@sun.com> Dan Mueth <d-mueth@uchicago.edu> SEE ALSO
scrollkeeper-config(1), scrollkeeper-gen-seriesid(1), scrollkeeper.conf(5), scrollkeeper(7), scrollkeeper-preinstall(8), scrollkeeper- update(8) scrollkeeper Dec 5, 2001 SCROLLKEEPER-REBUILDDB(8)
All times are GMT -4. The time now is 04:11 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy