Beginners - C++ Forum - January 2011 (Page 5)

How to transform string into expression?

Hi! =] I'm trying to create very easy application. Main goal is that user input two numbers (actually they may be expressions) and application outputs the highe...

[2 replies] Last: Thanks for ur answer, Bazzy. =] I will better learn what the “recur... (by daGrevis)

by TpOreilly

WndProc() (1,2,3)

Hi, i am learning c++ through a book i have, and i dont fully understand what the following line of code does: LRESULT CALLBACK WndProc(HWND hWindow, UINT ms...

[54 replies] Last: Thanks for that, that link cleared things up. (by TpOreilly)

by xander333

So I gave BigInt a try...

Hello everybody! After reading the Bignum challenge I thought i'd give it a go :D I'm currently trying to store the digits in a vector and outputting them. ...

[2 replies] Last: thanks a lot! (by xander333)

by bogdan

Maximum Longest Common Subsequence

Hi guys! I know how to calculate the Longest Common Subsequence, but I don't know how to find the lexicographic maximum of longest common subsequences. How ca...

[1 reply] : Can anyone help me, please? (by bogdan)

by gilit2

function id number

can I can any id number for the function ( I know __FUNCTION__ is its string name ) ?? I need it to have internal configuration tabke , with the function as it...

[1 reply] : You can use an array of function pointers to call functions based on a... (by closed account D80DSL3A)

by clomer

pointers

hello Ive been trying to learn pointers and Im having a hard time with them, after doing all the exercises from various websites and searching through posts Im ...

[2 replies] Last: A eureka moment, mystruct is my int thanks alot. (by clomer)

by closed account 4Gb4jE8b

Setting all values of an array

I have a multidimensional array (10x10) that I want all of the values at first to be 0. Is there any easy way i could do this like myarr = 0 thanks in ...

[2 replies] Last: many thanks good man! (by closed account 4Gb4jE8b)

by ctrlz

code not working properly.

this is the code: #include <iostream> using namespace std; int main(){ float gasprice = 3.021; int paymentmethod, numberofgallons, k; cout<<"Pl...

[4 replies] Last: setprecision and fixed from iomanip http://www.cplusplus.com/referen... (by ne555)

by Skinwah

Writing then reading binary files.

Hi all. I have been set a task for my c++ class. I have to create a program to take input about a companys weekly timesheets (Employee ID, hours worked, hourly ...

[5 replies] Last: 2. Bug on Line 91 of your original file - you are only writing out on... (by ne555)

by ntox101

the erase function

I am trying to write an erase function for a sequence of elements. I understand what is needed to get done. Erase the position requested and all other repetit...

[1 reply] : After you erase an elements, all the elements that are placed left sid... (by sajithshn)

by Chris S

Creating a list containing all combinations

I need it to include all combination of numbers and letters, it can only be a total of 3 characters. So if it is 1 letter it has to have 2 number. If it has...

[2 replies] Last: The rules as you gave are a bit contradictory. It might be best to or... (by PanGalactic)

by closed account 4Gb4jE8b

cin vs getline for this use

Okay, what i'm trying to do is this, get a whole line (up to \n char) convert all and then convert them all to lowercase characters. Now i've found out how to d...

[1 reply] : nevermind i figured it out (by closed account 4Gb4jE8b)

by peter nn

Determine the size of long

long tmp = 1; int size_of_tmp_long_variable would be 1 long tmp = 12; int size_of_tmp_long_variable would be 2 long tmp = 123; int size_of_tmp_long_va...

[14 replies] Last: @packetpirate The brief explanation: A lexical_cast is a conve... (by PanGalactic)

by shadowvillian

why doesn't this work...

#include <iostream> using namespace std; enum DIRECTION_t { int NO_MOVEMENT; int LEFT; int RIGHT; int UP; int DOWN; }; in...

[12 replies] Last: Oh ok. (by shadowvillian)

by closed account 4Gb4jE8b

changing to directory exe is stored in?

Okay so there are a lot of ways to work with directories and most are OS specific, this much I understand. But how could I change to the directory that the exe ...

[3 replies] Last: What Luc is saying is what i want. I think the environment variable wi... (by closed account 4Gb4jE8b)

by EHSANRAHIMI

"" and <> are same ?

hi thanks forgive me i ask here does there is a Difference between #include"isosream" and #include<iostream> there is no difference i use "" or <> in my all #...

[2 replies] Last: thanks alot moorecm (by EHSANRAHIMI)

by markXD07

something wrong with my codes

EDIT1 : solved already

[5 replies] Last: @craniumonemty sorry for that, im new to this forum world thingy... th... (by markXD07)

by johnny12

nvm (1,2)

nvm

[23 replies] Last: Ah, OK, sorry all. :-) I just put crazy mammals and killer rabbits ... (by Duthomhas)

by toolnard

For Loop Variable Scope

Hello all, I am new to C++, and am having trouble with a for loop. Here is the source code: // STUFF #include <iostream> #include <cmath> using nam...

[3 replies] Last: [co de] "Your code goes here" [/co de] sum_one = sum_one + (a... (by ne555)

by theimmortalbg

regular expressions

Hello, I was wondering how i can use regular expressions in c++ to count every punctuation in one string. Can u help me? I searched but its always too hard to u...

[4 replies] Last: Regular expressions are overkill for something like that. Just loop th... (by filipe)

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Beginners - January 2011 (Page 5)