I need to load tabular data from a text file. Reading the data into a string for each row, and then parsing the row by the delimiter is the only way I know how to do that at the moment.
Sure, but why pass it as a stringstream? Why not just pass it as a string?
Or if you really want to pass it a stringstream, why not make one function to handle file streams and stringstreams? The whole point of a stream is you don't have to care what kind it is...
Quote:
I know you can convert from string to real, etc, but that seams like a silly solution.
Oh, I see. You want a stringstream so that you can stream>>vartype with it.
It's a choice between
and
Be honest with yourself: There's no way around sheer brute force either way, they're equally ugly. >> looks prettier but is harder to check for errors and more difficult to process formatted input with.
You can indeed pass a string stream pointer that way, by the way, but you have to use its members with -> instead of .
Another concept that may help you is the union, with which you can build one class to hold many types.
Last edited by Corona688; 04-12-2011 at 07:18 PM..
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)