Beginners - C++ Forum - June 2011 (Page 8)

struct AA { float a; float b; unsigned char metadata; }; The size of this are 4+4+1 , isn't it ? AA *aa = new AA; sizeof *aa = 12 ????...

[1 reply] : Memory that is aligned on a 4-byte boundary may be faster to access, s... (by Disch)

by hny24

error question !!

void main() { one=10; two=20; callme(one,two); callme(two); } void callme(int arg1, arg2) { arg=arg+arg2; count<<arg1>>arg2; } what is error in...

[2 replies] Last: The problem here is that you just do not understand C++. You've not m... (by closed account z05DSL3A)

by hny24

error question 2 !!

void main() { int numbers ; numbers={25,50,10,30,40}; for{ loc=max-1; loc>=10; loc--) cout>>numers ; } find the error int it????????

[3 replies] Last: void main() This is wrong. If your compiler accepts it, throw it aw... (by Moschops)

by hny24

output of following ??

void main() { int u=10,v=20; for(int i=0; i<2; i++) { cout<<"1:<<u++<<"&"<<v+5<<endl; cout<<"2:"<<++V<<"&"<<u+2<<endl; } } what it's output ???...

[2 replies] Last: You know you can compile it, right? As for the problem, I suppose y... (by hamsterman)

by lookup12

Loop Gross Pay (for,while)

I am stuck in looping a program - Enter years worked cin >>years; while (years >=.99) { cout << "Enter hours worked: "; cin >> hourw;...

[1 reply] : The loop returns each time to the start of the loop; the start of the ... (by Moschops)

by airerdem

Open a file by name

Hi, I assigned the name of the file to string vector. I mean when I print the vector, it seems like cout<< files ; It prints file.txt and I want...

[2 replies] Last: thank you it worked ;) (by airerdem)

by smelas

log levels

Hi, I would like to have different log levels in my code. For example: something like cout.INFO << "x " << x << endl; cout.INFO << "y " << y << endl; c...

[5 replies] Last: You can define main like this: int main(unsigned int ArgCount, char* ... (by LB)

by tonnot

Circular reference ... Unable to write forwarding

I have a class.h with only structs definition I have a methods.h with a class WW with some functions written as templates. Ok, I have to declare into class.h ...

[2 replies] Last: Moreover you should look at this webpage about circular dependency. ... (by screw)

by muratagenc

destructor is not getting called, why??

would you please tell me why the destructors for the objects that pJ and pK are pointing were not called? I am sure there is a very simple answer for that.. but...

[8 replies] Last: for those who were wondering; after adding to line 42/43, inside main(... (by muratagenc)

by Maddsc16

Very basic question...

Hi I'm new to this forum, and I just need to know one thing. Is there any other way to write: if (variable == 1 || variable == 2 || variable == 3) { ...

[6 replies] Last: Could you possibly use if else (if else...) that might speed it up a b... (by brokenbot)

by staticx

Function datatype return issue

I have problem understanding how to declare functions to return needed data type. I only placed part of code that I have problems with. template <class Dat...

[9 replies] Last: The typename is needed. http://www.parashift.com/c++-faq-lite/templa... (by ne555)

by clarkk

log function problem

Hi guys, i am trying to remove 'delta' from this equation: R = (double)(c*log(k/delta)*pow((double)k, 0.5)); but when i try: R = (double)(c*log(k)*...

[2 replies] Last: Thats great, tnx hamsterman! (by clarkk)

by mobat

Character will not move on map. (Correct me)

http://pastebin.com/rw847Gbm - main.cpp http://pastebin.com/inv5A7Z1 - player.cpp http://pastebin.com/xk5dhwnT - player.h Everything compiles but when I tr...

[2 replies] Last: http://cplusplus.com/forum/beginner/44233/ (by king214)

by Ernest

ThisExample

not sure what is going on but my Dev C++ Freezes every time I try to compile ThisExample class Example { int x; public: Example(int a) ...

[11 replies] Last: dev offers stability It's broken and it will never be fixed. That i... (by Moschops)

by fargoth

Operator overloading fails

Hello, I'm trying to make a very simple class, but it doesn't work, and I don't know why! GraphPoint.h: #ifndef _GRAPHPOINT_H #define _GRAPHPOINT_H class Gra...

[3 replies] Last: Because you're doing const & GraphPoint instead of const GraphPoint... (by LB)

by Umar Dafedar

about structures,

hi I am new to C++, can u please explain to me about this syntax. struct name { int &fea_id; Rwgvector(rfval) &rfval; name(int &f, Rwgvector(rfval) &r)...

[6 replies] Last: It marks the start of the initializer list, and it allows you to invok... (by Disch)

by cmaypara

Why is it not prompting me to input the End Location?

I need help with this program. This is just the parts of the program leading to my issue that I can't figure out... Why isn't it allowing me to input the End L...

[2 replies] Last: And it did :D Thanks a lot Null. (by cmaypara)

by Nisheeth

Checking the status of a member of a class for various objects

For instance I create a class having one member of type bool and 100 objects. Now if I want to perform certain actions with those objects that have their mem...

[4 replies] Last: [quote=Nisheeth]Now if I want to perform certain actions with... objec... (by Mathhead200)

by nano511

TextBasedRPG not working correctly

I copied this code from a book im reading, and it doesnt work correctly. Basically, the problem is that instead of the combat simulation going like this: ...

[2 replies] Last: at the end of what? the switch statement? one of the cases? EDIT: Th... (by nano511)

by KingDreGo

undeclared identifier w/ if else

Im trying a simple code that has a user enter a specific name and if its not the name display a certain message but keep getting C2065 error saying the specific...

[1 reply] : String literals must be enclosed with quotation marks, i.e. "Fake" A... (by Athar)

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Beginners - June 2011 (Page 8)