Beginners - C++ Forum - August 2013 (Page 19)

I am trying declare and define the functions but I am getting error 'string' was not declared in this scope #include <iostream> /* run this program u...

[1 reply] : You didn't include the header. #include <string> edit: A... (by AbstractionAnon)

by Paoletti301

Quick question about classes

someone posted a link ( http://qt.developpez.com/doc/4.7/widgets-calculator/ ) to that sight about making a calculator. the question i have is about their calc...

[no replies]

by Woodchopper

int main() versus short main()?

In many books/tutorials I find that int main() is always used instead of short main() . Is it even possible to use short instead of int for your main...

[6 replies] Last: BTW, don't return negative numbers from main(). It attracts bad karma. (by Duthomhas)

by SoftMOUNT

Array Initialization

I am very new to the C++ language and have started learning by teaching myself using a book(C++ a beginner's guide second edition Herbert Schildt-is that a good...

[2 replies] Last: When describing an array of X arrays of Y something, people often vie... (by SoftMOUNT)

by theblackdog

SDL make an movable Image

I'm trying to load an image and move it with the arrow keys on the screen. I'm sure its only a little error but I just can't find it. To be exact it just rend...

[12 replies] Last: Yep I know. Please hit me with something for my stupidity. thank you ... (by theblackdog)

by afleury1

Not factoring in uppercase...

Here is a code that I previously worked on. I couldn't get the part about ignoring or tolower conversion correct in this program when figuring out the palindrom...

[3 replies] Last: Change cout << tolower(str ,loc); to str = tolower(str ,loc); cout... (by kevinkjt2000)

by treefitty

Faster way of scaling-up an image before render? (SDL)

Hello, I have a small, simple graphics project I'm working on, and I'm using SDL. Currently, the "default" resolution is 320x240, but my default scale is '2', ...

[5 replies] Last: I haven't looked at SDL 2.0 in great detail so I can't say whether or ... (by Disch)

by afleury1

compute short, int, long using pow

This was a program I worked on early on in the semester. I was told that Unsigned max values should be ( 2 * signed max value +1). I am just trying to figure ou...

[4 replies] Last: Check out http://www.cplusplus.com/reference/climits/ This may help y... (by Stewbond)

by mosahab

returnning passed array from a function

I want to pass a 2dim array called aArray1 to a function. The function job is swapping 2 rows of array. I want to know that Is aArray1 changed too or I should...

[3 replies] Last: You can return a bool value from the function that will report whethe... (by vlad from moscow)

by Joe Limon

Extracting Numbers From A String

I am trying to write a parser program. In this program it will read a string similar to. #46 = IFCCARTESIANPOINT ( (0.0000000000000000000,0.000000000000000000...

[2 replies] Last: You can make a std::istringstream from a string (the number in string ... (by LB)

by hellcoder

defining constructor outside the class

can we define overloaded constructor outside the class ? if yes then what would be return type in definition like return_type class_name::func_name(arguments)...

[2 replies] Last: got you thanks! (by hellcoder)

by hellcoder

benefit of constant member functon

is there any benefit (in sense of running time or anything else) to declaring a member function or object as constant?

[3 replies] Last: is there any benefit (in sense of running time or anything else) to d... (by andywestken)

by hellcoder

memory allocations

in this code have we allocated any memory for string? how does the pointer remember the complete string? include <iostream> using namespace std; i...

[10 replies] Last: Both the compilers are gcc-4.8.1 I did not think about the read only m... (by kevinkjt2000)

by jenaf

C Noob question: scanf("%s") leaves trash in stdin

sorry, I know this is kind of a standart question but: char *filename ; char filetype; printf("filname?\n"); scanf("%s",filename); printf("type? (b/k)\...

[3 replies] Last: the char * was a result of me wanting to malloc first and then decied... (by jenaf)

by Cydriic

How to output Text with SDL2

Hi everyone, I wanted to know if anyone could help me out with something. I would like to output Text using SDL2 the same way I output image files using S...

[no replies]

by undeadsoldier

Visual Basic

So today, I went to my programming class for the first day and asked the teacher what language we would be learning, and they said visual basic. I thought visu...

[3 replies] Last: You can hand write code in VBA. It is not too difficult. (by kevinkjt2000)

by ASCII14

help!

"no previous prototype for function 'addition'" it doesn't stop the program from running successfully, but i just want to know what it means for future referenc...

[7 replies] Last: [quote=man] -Wmissing-prototypes (C and Objective-C only) Wa... (by ne555)

by Uk Marine

someone explain this code for me please!

hi, so i'm currently reading Beginning c++ through game programming, at the end of chap.4, he writes a HangMan game, now there's something really annoying me an...

[3 replies] Last: Thank you so much both of you, now i understand :-) (by Uk Marine)

by mudasir007

Noob question

sorry it is a noob question i installed visual c++ 2008 but i am unable to compile hello.c program i get error hello.obj : error LNK2019: unresolved externa...

[9 replies] Last: I would also recommend mingw fow Windows users. My personal editor is... (by kevinkjt2000)

by sajis997

memcpy failure

Hello forum, I am having a segmentation fault with the following memcpy operation: const char *binaryExt = std::string(".bin").c_str(); const c...

[9 replies] Last: The bottom line is that memcpy on any complex type is not safe. Even ... (by Disch)

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Beginners - August 2013 (Page 19)