C++ :: Creating Flexible Interface For CL Application - Auto Return Type?
Nov 24, 2013
I am trying to create a flexible interface for my CL application. And what i have is this :
Code:
using namespace std;
// iplcp -i queryFile -d databaseFile
template <typename INT, typename CHARA>
class API {
vector<string> files;
vector<INT> flags;
[Code] ....
and in main :
int main(int argc, char **argv){
//set variables
API<int, char**>args(argc,argv);
cout << "In file: "<< args.GetOpt("i") << " Db file: " << args.GetOpt("h") << endl;
}
// first thing to be printed should be string and the second int
I know this is not probably the best way to but i am laying around and was curious if something like this could work . Are there any good C++ templates for CLI applications from which i could learn?
I am trying out a technique for a singleton class:
// access controlled singleton, accessed through function "instance()" // singleton is constructed in this function // so that constructor and destructor will be used class single { // private constructor/destructor
[Code] .....
Playing around with the code in main(), I am having trouble with auto:
single& s = single::instance(); // works fine auto a = single::instance(); // error ~single() is private
When I make the destructor public, the output of the program is:
ctor dtor dtor
So I fixed this by typing auto&. I'm still confused though, why wouldn't auto know I am returning a reference?
There are two types of patients. which is: 1. Normal patient. 2. Critically ill patient.
once you added any patient. You will be able to show all patient using "ShowAllPatient;" method. -> i want the Auto-increment ID Number to appear for each patient has been added.
And you will be able to call a patient to provide a hospital services for him/her using "GetNextPatient;" method.
I need to generate an Auto-increment Number for each (patient) has been added. (Auto-increment Number) but it just should be different for each patient. For example the first patient will have 1, The second patient will have 2. etc. The Auto-increment number should appear for each patient.
I have an application that reads a process and return values from it. The problem it works fine with small processes but i have some processes that are about 1GB or even 2GB and when i try to read such big processes the application crashes. I'm trying to find a way to read the process memory in chunks of maximum 10 MB. The read code looks like:
I'm looking to create some sort of a timer. I'd like it to count by milliseconds and return a true value when it counts to a specific time. It would be used something like this:
if(alarm(1000)) { // do some code }
I tried using time.h, but it doesn't seem to have any millisecond commands. I need something faster than a second.
actually it is the windows application .When i'm running my program it is not allowing me to enter the data into textboxes means the cursor is not appearing
Is this even syntactically correct? It gives me errors. Im just trying to compile it without errors. I think the function makes sense since its returning a type Class
I want to create a new data type called an inf_t. It's basically infinity (which for C++ is 1.7e+308). The only reason I want this is because I want to overload the cout << operation to print out INF/inf. Should I do this in a struct?
I am new to c++ and trying to learn. for instance. i have a struct and method.I am trying to learn what i can do with the method if i define the return type as struct type.
struct S { int age; string name; }; S method() { //what i can do in here. with the Struct. I mean can i reach members of the struct. etc }
I am wondering why return type for an assignment operator cant be a void or int? Cant I write assignment operator for student class like this as we do nothing with returned value?
Student { char name[20]; int marks; public: student(char*name,int marks)
I am currently having problems creating a loop that will allow my user to choose to return to the beginning of the program or quit.
#include <iostream> using namespace std; int main() { int j; do {float a; cout << "+----Welcome to Basic Operations----+ | Select Your Operation |
[Code] .....
I have not yet finished designing the interface for a couple of the operations, but right now i am hung up on trying to return to the beginning. I believe it is because the j was defined inside do and isn't carried out of the do statement for while.
I have this piece of code from the book "Modern C++ Design" that checks for compile-time error. When i tried to compile it, i get the error "invalid application of size of to function type". How to make this compiler-time checker work?
I'm making a flash card type console application using visual studios 2013. The flash cards contain character that I can display using unicode. So far I am looking at about 200 characters across 2 unicode blocks which I don't want to hard code into my arrays. I thought of initializing my arrays using a loop. The only problem is I don't know how to add in hexadecimal. So is there a way to initialize my array without having to input 200 values my self? Also is hexadecimal addition possible without me having to write a function for it?
I am having problems with my function definition of a function that should return a structure value.
This is the error I get compute.cpp(9): error C2146: syntax error : missing ';' before identifier 's_advertisebus'
The error is on the line where I start my function definition typing my function type as a structure. A long time ago in c the keyword struct is used with the structure type like struct s_advertisebus s_readadbus(). I tried it both ways but I got errors.
// struct.h #ifndef STRUCT_H #define STRUCT_H
struct s_advertisebus { int nnumberofads; float fpercentused;
If we are using strcpy() for copying the string. As we are passing pointers to it It will copy the string & no need to return the string .This function will finely work with return type as void then why Ritchie has used it as char* strcpy()?
