C/C++ :: Limiting Size Of Strings To 5?

Feb 4, 2015

I am supposed to use scanf() for this assignment to limit the number of charachters in the string. However, I cant seem to get it to work in either scanf() or fgets().

// main.c
// Lab_Ccode_1 + extra credit = input validation.
//
// Created by IanMiles on 1/28/15.

[Code]....

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C++ :: Limit Size Of String (arrays And C-style Strings)

Dec 9, 2014

how do I tell the if statement to output this error message 'exceeded the maximum amount of characters' that has its characters stored in an array using c-style string?

[INPUT] The cat caught the mouse!
[OUTPUT] Exceeded the maximum amount of characters (max 10)
#include<iostream>
#include<string>

[Code]....

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C++ :: Default Constructor - Set Array Of Strings To Null And Size Variable To 0

Dec 7, 2013

For my default constructor I need to set an array of strings to null and the size variable to 0. Here is my code for that

DynamicStringArray::DynamicStringArray() {
*DynamicArray[]=NULL;
size=0;
}

When I try and compile it I get an "expected primary expression before ']' token" error.

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Visual C++ :: Change Frame Window Size According To Increase In Font Size

Nov 27, 2012

Change the frame window size according to font size increases.

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Visual C++ :: Text Size In Screen Is Different From Size In Print Preview?

Feb 1, 2013

I must take an old MFC project in VC++ 6.0 and make changes.

The problem is text size in screen is different from size in print preview.

for example with this font

Code:
CFont f50;
f50.CreateFont(100,0,0,0,FW_BOLD,0,0,0,DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FF_DONTCARE,"Frutiger LT Std 45 Light");

And this text

Code:
s=_T("Let's try to calculate the size of this text");

and with MM_LOMETRIC map mode

GetTextExtent() returns me:

On screen: (1595,99)
Ink printer + print preview: (1589,100)
PDFCreator + print preview: (1580,100)

comparing with screen size the height is bigger but lenght is smaller. I don't understand.

I can understand that different printers process the fonts in different way and then to have different lenghts. That's not the problem. The problem is I need to simulate in screen the same behaviour i will have on printer because these texts are being aligned in the document, and I don't want to see that the text si aligned different in text than in paper.

What can I do to render the text on screen with the same size I will have on the printer? Print preview is doing it. Should I change the font parameters? is something related with pixels per inch?

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C :: Why Size Of Struct Is Larger Than Sum Of All Size Of Its Members

Jul 11, 2013

I was wondering why, in C, the sizeof of a struct is larger than the the sum of all the sizeofs of it's members. It only seems to be by a few bytes, but as a bit of a perfectionist I fine this a bit annoying.

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C++ :: How To Append Strings To The Front Of Other Strings

Apr 7, 2013

I am programming a translator, and I have it so that it detects words with spaces both in front of and behind them, so I did "string.append(space);" where space equals " ". That added a space to the end, but I still need a space added to the front.

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C/C++ :: Print More Strings (the Strings May Contain Spaces)?

Feb 12, 2014

I have a problem who must print the sentences who have lenght more than 20 characters. I dont know why, but it prints just the first words. Look what i made.

#include<stdio.h>
#include<conio.h>  
int main()

[Code]....

For instance :

Give the number of sentences : 3

First sentence : I like the website bytes.com
Second sentence : I like more the website bytes.com
Third sentence : bytes.com

After I compile the program it should print the first two sentences.

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C :: Why File Size Of BMP Always Zero

Oct 6, 2013

I've been looking into the file structure of BMP images and everything I'm reading says that the 4 bytes following the signature are designated as the filesize of the bmp file... It's always zero for me regardless of the BMP file. The signature is always correct though.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdint.h>

[Code]....

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C/C++ :: Max Size Of Array?

Oct 27, 2014

I'm trying to put all of the words in a text document into an array but this text document is 2,138 kb, and when my program is crashing when I try to put it into an string array. Could the file be too big to put into the array?

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C/C++ :: Different Size Of Values

Nov 10, 2014

The problem is with that a. What is it, a pointer? What's the difference between the a in the main function and the a in the function?

#include <iostream>
#include "Header.h"
using namespace std;
short int capacity(int* a) {
int capacity;

[Code] ....

The function it returns i think the size of the pointer instead of returning the size of my array. I don't think i fully understood pointer arithmetic.

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C++ :: How To See Actual Size Of PTR

Sep 26, 2014

How can I see the actual byte size of the pointer as output in the command prompt?

#include <iostream>
using namespace std;
int main () {

[Code].....

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C/C++ :: Getting The Size Of Array?

Jun 12, 2014

Here is what I've tried:

int numbers[] = {8, 2, 0, 4, 100, 5};
for(int i = 0; i < sizeof(numbers); i++){
cout << numbers[i] << endl;
}

However the results in the console is: 8 2 0 4 ,What am I doing wrong? Am I using the wrong built in function or something? I googled this and one of the links that came up stated to just do something like

arrayName.size()

but that didnt work for me either...

[URL]

Also, I know that I just enter the size of the list manually, in this case make i < 6 but I still want to know if there is a built in function or something.

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C/C++ :: Size Of Integer In Dos?

Mar 12, 2012

what is the size of integer in dos?

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C++ :: How To Change Font Size

May 19, 2013

how am i supposed to alter font size of text which appear in output screen?

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C++ :: Let The User Specify Array Size

Oct 12, 2014

I am not sure why I am receiving the error message:

Error C2466: cannot allocate an array of constant size 0

When I run the code:

Code:
int s;
cout<<"Enter the size:
";
cin>>s;
int array[s];
C++ masters,

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C :: Size Of Function And Pointers

Apr 6, 2014

I have this simple program:

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static unsigned char cmd[]={
0x01,0x80,0x00,0x00,0x00

[Code] .....

All is right except the size. Why does it give 80x1 as size instead of the digit 5?

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C :: Size Of The Data Type

Mar 4, 2014

I want to find the size of the data type with out using sizeof() operator.

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C :: Invalid Next Size Error

Feb 13, 2013

After looking online for a string replace function in C and finding so many examples that go through the entire string twice. First round to find how number of occurances of substitute in string, using that to malloc for a new string to include additional space for replace, then going through the search string again to get all but what's to be substituted out. I feel it's kind of silly to go through the string twice. Therefore, I'm trying to implement my own string replace, that only searches through the string for what's to be substituted, once.

Here is my code:

Code:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
char *strreplace(char * string, char * sub, char * replace);
}

[code]....

Here is the same code, but with execution + some syntax highlighting: Ideone.com | Online C Compiler & Debugging Tool..It works great, until it gets to grabbing whatever remains in the search string after the last found sub. The realloc throws a runtime error:

Code:

*** glibc detected *** ./a.out: realloc(): invalid next size: 0x00011008 ***

Aborted From my understanding, this is from me going outside of the bounds of the heap and using memory I haven't allocated, or using a free'd pointer. I'm not seeing where either of these are happening in my code, and was wondering what the best way to go about figuring out where the error exactly occurs.

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C :: Sorting Array Of Size 10

Nov 18, 2013

I am trying to sort an array of size 10. If I was given:

Code: int List[Size] = {29, 11,12,10,3,26,13,15,19,2};

I need the program to sort all the odd integers and put the even integers to the back of the array. Like so:

Index: 0 1 2 3 4 5 6 7 8 9
Value:29 11 3 13 15 19 12 10 26 2

And it returns the number of even integers in the List. In this case it returns 4. All I am given to start with is

Code:
int evensToRead(int* const List, const int Size){
//body
}

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C++ :: Dynamic Size Of A Matrix

Apr 24, 2013

My purpose is to fill a matrix with random numbers. As you can see in the code, I defined a matrix called sim_matrix (which should be filled), but the dimensions of such matrix is given by the parameters that we introduce in the constructor. Because we don't know the size of such matrix until we give these parameters through the constructor. I'd like to know how to declare such matrix, or how to modify the size,...

The header of my file MonteCarlo.h is:

/* MonteCarlo.h */

#ifndef MONTECARLO_H_
#define MONTECARLO_H_
using namespace std;
class MonteCarlo {
public:
MonteCarlo(int n_paths, int n_simulations);

[Code] ......

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C++ :: Size Of Structure Pointer

Sep 2, 2014

Is there way to find the size of structure pointer size? When we tried to get the size of structure pointer will get size of address(@ location) which would be 4 bytes long. But I want to get the size of all structure members size using structure pointer.

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C++ :: How To Get Size Of Dynamic Array

Jun 12, 2013

I remember in C++, when a dynamic array is allocated, the size of this array is stored right before the array in memory. Therefore compiler knows exactly how long, when this array is deleted.

Do all compilers store the size this way? Is it a safe method to get the size of a dynamic array?

Here is a example code, it works fine on Visual Studio 2012.

#include <iostream>
using namespace std;
class dummy {
public:
dummy() {
cout<<"dummy created"<<endl;

[Code]...

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C++ :: Size Of Struct Program

Dec 14, 2014

I'm having trouble figuring out how to find the size of an array program that involves "struct."

#include <iostream>
using namespace std;
struct d{
char* a;
float b;
int c;

[code].....

When I run this program, the output is 80(for my compiler). That would mean that each element in the array is 16 bytes but I don't understand how struct d is 16 bytes.

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C++ :: Size Of Result With Struct Var

Apr 20, 2013

typedef struct Element Element;
struct Element {
char x;
double* y;

[Code] .....

This one with y pointer gives 8

typedef struct Element Element;
struct Element {
char x;
double y;

[Code] ....

This one with a normal y variable gives 12

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C++ :: Display Fonts With Different Size?

Dec 23, 2013

if I can use different font sizes in output screen

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