Beginners - C++ Forum - January 2015 (Page 33)

Suppose I have a variable x in a function; and I may set it to two possible values (depending on function computation paths). Once I set x, I do not change it. ...

[5 replies] Last: Oh yes, I forgot about scope, thanks for pointing that out! (by DexterMorgan)

by mightymeowth

Encapsulation for my classes, and multiple classes, returning inputs

Hey guys, I am currently trying to set up a class for my simple menu program that will handle choice selection (1 through 2 right now to keep it simple). I am w...

[no replies]

by kmtompkins

false positive

in line 120 when im looking to see if i press enter it always thinks i did is this because i pressed enter earlier and how would i be able to fix it. #def...

[4 replies] Last: Just remove the : at the end of the link - the page will open. (by wildblue)

by mynicks

Why ambiguous? (function overloading)

I cannot understand why inside my main() the function myfunct(i) is ambiguous? I got the code from a book. I run the code(to some free IDE) and the error i get...

[5 replies] Last: Well overloading needs to know what type a variable is. If there is no... (by DarkLightHitomi)

by huwenhuo

sematic scope: static variable in CPP with explicit namespacing

My apologies if this has been brought up here before. Here is my sample code, class.cpp static int xx; namespace app{ class yy{}; } My questions is ...

[no replies]

by geonightmare

Speed of math calculations

I need to perform trillions of calculations (order 10^9-10^10), which are quite repetitive: calculation of distances, angles (sin, cos) , etc. I was wonderin...

[4 replies] Last: Keep in mind that a modern processor can execute around a billion inst... (by dhayden)

by xgeutzu

Prime X-nacci modded Terms

I will copy - paste the problem here: The standard Fibonacci sequence is represented by the sum of the previous 2 terms. Generally, it can be expressed as: ...

[17 replies] Last: Yes, kudos to Norm B!!! Thanks for pointing out the problem. (by dhayden)

by closed account GvMiNwbp

project to convert

Hi, I'm a new member here and I want a person who can help me with a project. I am a beginner in C ++ two months I practice . For example, I made a "tic ...

[2 replies] Last: thank you for your link but I really struggle to succeed... :/ I have ... (by closed account GvMiNwbp)

by glennpl

writing integer values in char array elements

The program converts decimal to hexadecimal 1)I am having problems assigning integer values to char array elements how is it done. Im getting symbols for my ar...

[no replies]

by xgeutzu

what's wrong ?!

ok so.... I have this formula: T(n) = n(n+1)/2 where n = 123456789. I have to calculate sum of digits of T(n). long long int T = (123456790 / 2 ) * ...

[11 replies] Last: thank you dhayden ! now it works ! (by xgeutzu)

by musabji

swapping variables is messing things up..

what the heck is going on with this program? the result I get is 1606422622, but why???? #include <iostream> using namespace std; int main(){ int ...

[5 replies] Last: Try this: #include <iostream> // using namespace std; int main() { ... (by JLBorges)

by phztfte1

Increment Operator Question

Write your question here. How do you read this statement words[*stream_begin++]++; ? (1) Why is there an increment operator (++) after *stream begin and af...

[4 replies] Last: dhayden, Thank you very much for your comment. I added the parenthes... (by phztfte1)

by globalenemy

pointer decleration

Greetings, I'm wondering about how to declacre my stuff. on my journey into c++, the internet has shown me theese: SomeType type; SomeType* type; SomeType *t...

[2 replies] Last: Thank you. this helps. Still a bit confused about this stuff, but i'm ... (by globalenemy)

by ilija

lshell 32 not found error?

So i was trying to compile my code last night and i noticed Code::Blocks refused to compile and displayed the message: error:lshell32 not found. I thought that...

[no replies]

by PonieClub

Trouble with rand and srand

Hi there, Pretty new to C++ and OpenGL and this forum but help would be greatly appreciated. At the moment I'm trying to creating a simple animator program t...

[2 replies] Last: I see a mouch bigger problem here: Tons of global variables. You shoul... (by bugbyte)

by KPK333

need some explanation of stringstream()

I am new to C++ ( I only know a little bit of python, so, I am fairly new to programming as well ) I don't understand the' while(!stringstream(swap) >> width)'...

[2 replies] Last: Thanks ! (by KPK333)

by Althalus

I don't know how to draw a ASCll character

I am unsure of how to draw a ASCll character to work this code that i found on this forum post: http://www.cplusplus.com/forum/beginner/85814/ #include...

[2 replies] Last: Oops Thankyou that clears some things up (by Althalus)

by Matas

void main()

When void can be instead of int ? I mean void main() There is a programmer who writes that, and do not understand how does it work? (click on the first on...

[14 replies] Last: > Windows allows much larger values to be used, up to 65536 AFAIK, Wi... (by JLBorges)

by Bdanielz

get and set char *

Disclaimer. This is for an homework assignment (due in two weeks) and this is just one tiny aspect of the entire project that has been a major headache for me.,...

[12 replies] Last: Gotcha. Thanks for the input. (by Bdanielz)

by kmtompkins

input _bstr_t

hi my program requires i use _bstr_t how would i input this because i cant use cin. _bstr_t verification_code; while (true) { cout << "Enter p...

[3 replies] Last: Yes. std::string verification_code ; std::getline( std::cin, verifi... (by JLBorges)

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Beginners - January 2015 (Page 33)