General C++ Programming - C++ Forum - February 2013 (Page 21)

by e0ne199

how to copy between vector <string>

hello anyone, btw this is a part of my program void query::load_query(const char* filename){ ...

[5 replies] Last: looks like i have found my own solution for this problem :) ......... (by e0ne199)

by amanyasin

Generating all possible combinations of a vector elements.

I have an integer vector of size "n". e.g. std::vector<int> vec; vec.pushback(0); vec.pushback(1); ...

[7 replies] Last: [quote=greenleaf800073]Actually, Code::Blocks hosts is capable of i... (by cire)

by brk7894

Help with inflation calculator

I need help with making a inflation calculator. So basically the user enter the price of an item,th...

[1 reply] : add this loop int main() { blah blah blah... int years = ... (by greenleaf800073)

by LB

Why I love C++11

#include <iostream> struct Test { int (*fp)(int a, int b) { (int x, int y)->int { return x*y;...

[2 replies] Last: The (int x, int y)->int { return x*y; } is the lambda expression/an... (by LB)

by knowNothing

Enable Compiler Options?

Hello, This is an error I get, when trying to compile some program: error: #error This file req...

[3 replies] Last: I did not just get... (by greenleaf800073)

by LB

Auto-generate function from typedef

I'm looking for something that will let me do this: using f1_t = void (int, int); using f2_t = bool...

[no replies]

by PurpleKush

cryptopp561 InvalidCiphertext

Hello, I am new with cryptopp,i try to encrypt and decrypt text from a file. I alway receive thi...

[no replies]

by closed account 4wRjE3v7

Can someone explain a for loop to me?

for (i=1,i<=num;i++) WHAT DOES THE i INDICATE? -thank you

[5 replies] Last: for (i=1,i<=num;i++) This doesn't work. A for-loop looks like this:... (by closed account j2NvC542)

by jajang

Hi I need some help with error C4430

I have to write a program that do Caesars Cipher. I have 3 file: main header and implementation fil...

[no replies]

by dundun12

Need some help with Class Average Calculator

I have to create a class average grade calculator for my C++ and having some major trouble. I am ver...

[no replies]

by TaytayB

Overloaded Arithmetic Operations on fractions

Hey, I'm 100% new to Overloading Operators, I don't fully get the syntax. The goal here is trying t...

[no replies]

by altaird

comparing two data files

I'm trying to compare two data files character by character to see if they are the same. If the file...

[1 reply] : You could store the current line number in a int variable. If you read... (by Peter87)

by Sibendu Dey

String reference

in a function { int i=0; string s=(char)i; } Doesnt work But, { int i=0; string s; s=(cha...

[1 reply] : string s=(char)i; This doesn't work because std::string doesn't have... (by Peter87)

by closed account 4wRjE3v7

How would I make this into a while loop?

#include <iostream> using namespace std; int main() { int num; cout << "Please ent...

[4 replies] Last: Thanks Elidor:)!! (by closed account 4wRjE3v7)

by racefreak

While loop not working?

I have a while loop in my program, but it's not working properly. It will take a long time to finish...

[5 replies] Last: OK, I changed it so that it only uses acquire and releas screen twice,... (by racefreak)

by nikita 19

pointers

why are the arithmetic operations like division(p/q) and multiplication(p*q) invalid on pointers?.h...

[6 replies] Last: @vlad from moscow And so I learn something new! Subtraction of two po... (by Thumper)

by Catfish3

Does pubsetbuf() ever return nullptr?

[quote=cplusplus_com]streambuf* pubsetbuf ( char* s, streamsize n ); In case of success, the member...

[1 reply] : C++11 §27.6.3.2.2 basic_streambuf<char_type,traits>* pubsetbuf(c... (by Peter87)

by eklavya sharma 2

Isomers of alkanes

I want to make a program which finds the number of isomers of an alkane ,given the number of carbon ...

[2 replies] Last: you also used "void main" and goto This is why: http://www.cplusplus... (by eklavya sharma 2)

by raaj5671

cout is ambigious help pls

why suddenly my code is showing cout is ambiguous..help pls

[10 replies] Last: Okay, a few things. Firstly, you define a constructor twice (which sh... (by Thumper)

by Amit Mistry

dynamic memory errors

/*Hi I am new to C++ language and I am still learning. It is difficult but I'm slowly getting there...

[1 reply] : You're not creating any dynamic memory here. 'str' is always just a p... (by plexus)

General C++ Programming - February 2013 (Page 21)

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