Beginners - C++ Forum - February 2014 (Page 17)

”Guess the character”

[4 replies] Last: Please use [ code] tags. Like this: #include <iostream> //#include... (by Duthomhas)

Hi guys, We're going over input files in my C++ class but I'm taking it online with limited direct help. We currently have an assignment where we are required ...

[5 replies] Last: your cin.getline() function will return the whole line from your text ... (by TECKSPEED)

by Furyoku

How to use switch with string?

I need to know of how to use switch with string.I know that we can use if and else instead. But I want to know of how to use string directly with switch. ...

[1 reply] : You can't. Use a chain of if, else-if. if (str == "apple") { std::co... (by Peter87)

by supershooverine

Purpose of strcat

strcat(str,” “) ; //whats does it do?

[1 reply] : http://www.cplusplus.com/reference/cstring/strcat/ (by keskiverto)

by supershooverine

reference book for c++ in CBSE

Anybody knows good reference books for c++ in CBSE board for class 12 or secondary 6?

[no replies]

by supershooverine

1D array doubt

Why do we use flag in a 1D array ?

[5 replies] Last: Thanks a lot for ur help!!!! (by supershooverine)

by closed account zybCM4Gy

Arrays... what's going on?

#include <iostream> using std::cout; using std:endl; int main() { short int numbers = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; cout << sizeof(numbers...

[2 replies] Last: sizeof returns the size of the array in bytes. cout << 10 * sizeof(s... (by Peter87)

by Marnez

Bad memory allocation?

When I run my program I get an error message: terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc How do I resolve this? ...

[2 replies] Last: Oh my... Haha.. Thank you for pointing out such a bad mistake. (by Marnez)

by sajis997

Array of pointers to pointers

Hi forum, How to declare an array of pointers to pointers ? Cell mCell = new Cell* ; Is that how it is to be defined? I did it without much of a...

[5 replies] Last: I can't compile incomplete code but it looks fine. Is it the extra * ... (by Peter87)

by theperson

I'm having problems using a void pointer to iterate through a SimpleVector template I got from a book...

This is basically what I'm trying to do #include <iostream> #include "SimpleVector.h" void* thisReturnsVoidPointer(SimpleVector<int> theVector); int main() ...

[4 replies] Last: I realized that in simplifying my problem into the above code... I did... (by theperson)

by mabbia

removing repeated words form array

i need to remove repeated words in my 2D array(words). Here is my code int row=100; int col=10; int size=1000; char *my_arr=new char ; char **words=n...

[no replies]

by jordy1993

Calculating area of triangle of sides a, b with angle C between them

My second program in c++ (1st being hello world) Trying to use the trig formulae ( area of triangle = absin(C) ) However getting odd results and not sure why...

[11 replies] Last: Hi Jordy, First of all, good effort in fixing up your program. Lots o... (by TheIdeasMan)

by Marnez

Question - Spaces in strings

I'm trying to read int and two strings from a .txt file and store them in the members of each structure array. The problem I have is that when reading the two s...

[10 replies] Last: And I tried using the ignore func but it didn't work for some reason.... (by naraku9333)

by theperson

Getting error: expression must have a pointer-to-class type when using a void pointer access methods of a template object

I've been trying to use a void pointer to a SimpleVector (a template I got from a programming book) but I always get expression must have a pointer-to-class ty...

[2 replies] Last: Thanks (by theperson)

by JonnyBlaze213

Rock Paper Scissors Lizard Spock

Im writing the basic RPS program but I have to add in a twist. After writing the code it builds but the computer will not chose, Im not sure what I'm missing. ...

[4 replies] Last: [code firstline=70]if ( CompChoice == 1 ) { CompChoice = '1'; ... (by long double main)

by Nukem

Do While

Hello I have ran into an issue I can't seem to solve. I am trying to make it so when the user types a random character thats not a number between 3 and 25, the ...

[3 replies] Last: You also haven't accounted for 3 and 25. So maybe if(height>=3 && hei... (by long double main)

by ConfigMC

Char array loading from file

Hey there! I've encountered some issue with a file loading system I've been working on for an infinite randomly generated RPG game. For now, I'm using a char ...

[no replies]

by theperson

What is the best practice for where to put validation functions when I have multiple classes that need to use them?

I'm making various general validation functions to check if the user entered a number, that there are no spaces, etc. and I have many classes that have function...

[4 replies] Last: Alright, thanks for letting me know. I had no idea that was possible b... (by theperson)

by cory244

Valid input checking

Hello I am trying to write a program that will check the input to make sure what the user entered is an integer only. This is it basically, how would I make it...

[13 replies] Last: Sweet that worked I forgot about the c_str() thats what happens when y... (by cory244)

by KvltKitty

simple question

So idk why I can't remember this, probably cause I haven't done it in a while. But why is it that while(cin >> int) never exits even with blank lines and cin.i...

[1 reply] : cin >> something gobbles up all leading whitespace (this includes ne... (by long double main)

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Beginners - February 2014 (Page 17)