General C++ Programming - C++ Forum

Hello all you pros out there. I have a question. First off I have taken an intro to c++ class last semester at my local community college. This semester I am...

[11 replies] Last: Wait... fifth? I have the fourth from last summer... Where's the fift... (by tummychow)

by toothyXdip

Next C++ book to read?

I am finishing up reading "C++ Programming, 4th Edition: From Problem Analysis to Program Design" and I was wondering what the next book I should read is. I'm l...

[1 reply] : http://www.cplusplus.com/articles/Grey_Wolf6/ It's going to depend a ... (by tummychow)

by RET80

using const char*[] and compile time errors

Hello folks, new to the board. I have a compile time error in my C++ program that reads: error C2440: 'default argument' : cannot convert from 'const char ...

[2 replies] Last: bingo, totally fixed. Thanks! (by RET80)

by meesa

[C++] for_each() gives errors C2896 & C2784

Here is the code: #include <algorithm> #include <iostream> #include <vector> using namespace std; template<class T> void squared(T &root){ root*=r...

[5 replies] Last: Thanks. (by meesa)

by asgOjEs

what is the function of "extern" in C++

Dear all, I have problem to understand what is the function of 'extern' and how to use it..?..Hope you all will explain to me about this function and give s...

[7 replies] Last: dont forget to put extern "C" inside #ifdef __cplusplus, otherwise c c... (by writetonsharma)

by chrisben

question about boost static library linking

maybe not a right board to ask boost questions. but it is quite intriguing for me and may be helpful to better understand c++ compiler. when I link a static ...

[3 replies] Last: probably some #pragma nested in a million #ifdefs magic/hell. (by Disch)

by xiangli

vector definition question from a beginner

I have a code which defines a variable in a function in the following way: vector<vector<char> > const &data Does that mean the &data constant is a vector...

[4 replies] Last: Take this for size: #include <vector> using std::vector; v... (by closed account S6k9GNh0)

by laulaub

Cyclic dependencies

Hello, I am currently in the process of creating a small game using SDL. I have been working on a state manager that manages switching between for example th...

[5 replies] Last: All those are talking about cyclic dependencies between modules, which... (by helios)

by hamsterman

fastest way to get the type

Here's what I have: struct Apple{...}; struct Banana : Apple{...}; struct Cyanide : Apple{...}; struct Donkey : Apple{...}; //and so on... void Eat(Banan...

[15 replies] Last: ha! next exercise...triple dispatch! (by choisum)

by tajendra

Which is faster static or dynamic linking?

Which is faster static or dynamic linking? How much performance improvement can dynamic linking yields in comparison to static linking.

[7 replies] Last: In my scenario, it would be the "link time of whole project + load tim... (by imi)

by soldierno77

can anyone explain this for me?

function A*(start,goal) closedset := the empty set // The set of nodes already evaluated. openset := set containing the initia...

[1 reply] : This is how it works, but its been a while since I looked at it. ... (by caswal)

by oontvoo

compile error with inline/non-inline function

I have a class with an enum and a simple method like this; class MyClass { enum Code { A, H, M, Q, S}; Code foo( char ch) { switch (ch) ...

[4 replies] Last: because MyClass::foo can not see the Code (by wellman)

by freakalien

DLL files for Excel

I am a relative newcomer to C++ and am limited to writing console applications at the moment. I would like to write functions in C++ for use in Excel via DLL f...

[1 reply] : I imagine there should be something of use here: http://msdn.microsoft... (by helios)

by rachitagrawal

Binary

This is a question on generating a binary executable for a specific purpose. I have a tool (pintool), that I am using to instrument the number of instruction...

[2 replies] Last: You have to separate the compile and link stages. So you can control t... (by choisum)

by maheshravishankar

Priority queue push and pop operations

Hi, The STL tutorial on this site says the push and pop operations of a priority queue is O(1) in complexity. Though they do mention that push_heap and pop_h...

[no replies]

by Hopeless Programmer

Adding c-string

This assignment requires that I allow a user to enter a string of numbers without any spaces and add them up and find the high and low numbers in the string. E...

[1 reply] : You can convert the ASCII character '0' to the decimal value 0 by subt... (by jsmith)

by zonaarten

HugeInt class/data type

i am doing a project at school but i am having problems that even my instructor can't help me figure out. exercise: (HugeInteger class) create a class Huge...

[7 replies] Last: Both Duoas and I pointed out the problem in our posts. (by jsmith)

by rash140

Array Creation at run-time in c++/Linux

Dear Friends, I have a text file from which i read a number of names with their lengths at the run-time. Now i want to created a char array having the length...

[9 replies] Last: Well c++ is a totally different language. I'm not sure why it matters... (by kempofighter)

by chara76

Does this modulus operator function work for all integers?

Does the following modulus operator function work properly for all integers? /*------------------------------------------------------------------------*/ /*...

[1 reply] : The built-in integer type operators are defined for all built-in integ... (by Duthomhas)

by qabil

without registry

how we make our program can runing at start up without using add key in registry

[5 replies] Last: roger that.. thnx brot (by qabil)

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General C++ Programming - April 2010 (Page 20)