C++

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Beginners - June 2010 (Page 10)

Expected primary expression before '{' token

Hello... Just started out and am trying to explore the various features of c++ by writing a small program. In xcode I got the errors: Expected primary exp...

[4 replies] Last: OK... thanks a lot helios... you've been a great help. (by Yoshima)

by ozair

reading whitespaces in input

I am using 'string' header in program, the problem is that the function cin.getline() uses char* as its first argument rathar than a string class object... I al...

[7 replies] Last: arghhh, I didnt asked for what is necessary or what is unnecessary in... (by mcleano)

by player09

finding most commonly used word in txt file

Ok so I need to find one word for each letter [a..z] which is the most commonly used for that letter. I thought of creating an array of linked lists, where word...

[5 replies] Last: Ok I got this, thanks. Could you please take a look at my code and tel... (by player09)

by EEmsu

counting characters in a string

Hello, I am new to c++. I have been trying to write a program that counts the total number of characters in a string. The program then outputs the total of let...

[6 replies] Last: Thanks for all the help. (by EEmsu)

by dasman

Mechanics of C++

Hi I just wanted a good reference which describes the various terminology like compile time, linking, assembler, runtime etc. I can write programs in C++ and ca...

[1 reply] : The Wikipedia articles are very good about explaining how all that wor... (by Albatross)

by SirSkorpan

What is wrong with this assignment

Hi I just got feedback from my teacher and he gave a comment for the following piece of code: void IOclass::printDice( vector<Die> diceVec) { int...

[6 replies] Last: Arrays can contain whatever type you want. A vector is usually the be... (by SirSkorpan)

by diffusion

Incredibly frustrating. Can't run simple Hello World project

I've copied and pasted a simple Hello World "program", however it will not run, due to some error(s) apparently associated with the line "#include <iostream>". ...

[9 replies] Last: Dev-C++ does have a few quirks that are annoying. To be honest, I ha... (by Bo Pace)

by xyzt

defining iterator in a template class

I couldn't find a reasonable title for the question, sorry. I try to wrap a map container to make it thread-safe. I wrote the below class but i get compile err...

[8 replies] Last: Was that just a typo or a freudian slip? :) I have to admit, it was... (by R0mai)

by cptntan

How to make the line to be constant? use wat code??

my output for my assignment was : My problem is wat code sholud i put so that tat whole vetical line would not move? becuz if i enter in a digit for example ba...

[4 replies] Last: Detail! But to be fair to Grey Wolf, I edited it. -Albatross (by Albatross)

by SirSkorpan

Looking for a good way to populate a vector<Object*>

Hi, As the title says I'm putting pointers to objects in a vector. The way I'm doing it right now is like follows: (object 1, 2 and 3 are all derived from th...

[7 replies] Last: That is a good way of thinking about it, I feel. (Still probably need ... (by SirSkorpan)

by doombunny

Decimal Rounding (Round Up only) (If statement)

Hello all, I need a little help. I am making a program that needs to do these things: I have a number gallons if gallons = 3.08743 gallons now needs ...

[5 replies] Last: ok, i will try and see 1st.. (by cptntan)

by manish411

using cygnus and mingw

i have downloaded the complete packages of cygnus and mingw. but I dont know how to compile and run programs by them

[1 reply] : how to do settings in eclipse for developing c++ programs . I have do... (by manish411)

by Blooded

string array returning erros

for some reason the following code returns error "a function-definition is not allowed here before '{' token" all the time, cannot seem to figure out why, sor...

[7 replies] Last: I think you most likely meant this: for(i = 0; i < 20; i++) { ... (by Galik)

by siue21

Finding divisors and adding number of divisors.

I have to write a program by tonight and i am stuck on one particular part. My code has to have two numbers entered and then list the divisors of the first and...

[4 replies] Last: you may use functions to calculate divisors instead of writing similar... (by anushka)

by AJL

Comparing date with system date

I'd like to know how can I enter a date so it can be compared with system date and how can I compare them?

[no replies]

by gdsimz

Issue inheriting from a base template class

Hi all, I have a template class (assembled as a double linked list requirement) which looks like an array with subscript operators, etc. I have the class re...

[2 replies] Last: If you really want to use INDEX as index type, use: typedef INDEX in... (by magnificence7)

by dasman

Char *

Hi, I was just wondering about this, Char * s = "aaaaa" is valid, it creates a pointer to char and also points to "aaaaa". But why doesn't int * p = 45 wo...

[1 reply] : Because "aaaaa" is a pointer to a block of memory that contains aaaaa.... (by Albatross)

by itsgrandpa

Trouble with strings

I had to input temperatures into numbered weather stations. This time I need to address name's to each station, then input temperatures from each station. /...

[1 reply] : For starters, check lines 20 and 70. After that, what exactly are y... (by Albatross)

by mjrscrewup

c++ class template instantiation

I'm trying to instantiate a class template pointer but unfortunately, vs2010 cannot compile it. The class I'm creating is a resource manager which contains a li...

[7 replies] Last: Ah ok. It works when i put everything into a single file. Thanks for t... (by mjrscrewup)

by EdBoon

new Struct array on free store

Hi, I am working on a bit of gaming code and have run into a small problem ( more of a misunderstanding) I am using allegro/c++ but allegro shouldn't come into...

[8 replies] Last: oh yeah that is a smart way to do it, your lesson gave me player.progr... (by EdBoon)

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