My code is currently reads in a string of lower case letters, identifying the occurrence of each letter.
Code:
#include <stdio.h>
#include <string.h>
int main()
{
[Code]....
My issue is that I want my code to read uppercase and special symbols. showing the occurrence of both.
Code:
else if(str[x] >= 'a' && str[x] <= 'z');
else if(str[x] >= '0' && str[x] <= '9');
However I struggle to implement it
For example, how to output "Delta" (like a triangle) in C++?
View 13 Replies View RelatedIt should count from the text entered how many alphabets in uppercase and lowercase, digits, blank spaces and 'other symbols'.
This is the program below.
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
[Code].....
I am a beginner and I ALWAYS have the toughest time doing I/O files. It's extremely frustrating. It "seems" it should be so simple. The program should find a code from a list of numbers. These numbers are from 0 - 9, and after each number is a space in the file. Your job is to extract a special code containing only 10 of those numbers. For the number to be part of the code, it should be divisible by 2. After extracting 10 numbers divisible by 2 for the code, write those 10 numbers to the file to form the expected code.
Input file is ("question.txt")
Output should be ("code.txt")
Should this contain a "for loop" or If/else ?
Here's what I did . .
/
// int numbers, total, counter;
ifstream inFile;
inFile.open ("question.txt");
outFile.open ("code.txt");
if (!inFile)
[Code] ....
I'm using Code Blocks but for some reason it doesn't process alt symbols. You know... alt symbols are like this: ☺♫↓☻♪♥↕. Code Blocks says that they're "invalid characters". Is there any attatchments or mods so Code Blocks can process them or will changing the settings?
View 1 Replies View RelatedI am trying to modify a user control while modifying the main form. For example i have my main form open in one visual c# window and my user controls in another. However it seems that in order for my code changes in my user control to have any effect on the main form i need to close all my c# windows and then re-open them and even then that sometimes doesn't work am i doing anything wrong or is this supposed to happen??
Also yes i am saving and clicking build solution on my user controls.
I'm trying to split up my game (about 1300 lines) into header files, but I'm coming up with a problem whenever I try and put a function in a header file, when that function was modifying some variables that were defined before int main in the .cpp. For example:
int variable1 (0);
int variable2 (0);
void increasevariables() {
variable 1 = variable1 + 1;
variable2 = variable2 + 1;
[code].....
If it only modified one variable then I could just pass that variable and the return it:(return variable1 + 1;)But I don't know how to make a function in a header file modify several pre-existing variables. In the actual program, the variables are dependant on each other and the modifying is a lot more complicated, so I'd rather not split it into several functions and run one at a time if there's another way.
I am new to C++ and am trying to modify an array inside of a function.
It is of my understanding that you cannot return an array from a function?
Would writing it to a data file and then retrieving it be a solution to this problem?
I have a class that loads the contents of a XML file into their respective object types and stores those objects in a list. Each object has its own list of objects with properties the program will later modify.
The problem I am currently having is that after looping through the objects and modifying the necessary properties the modifications do not persist. This leads me to believe I am modifying a copy of the object rather than the object I think I am modifying. I am not sure why this is happening as I believe I should be modifying the object that is referenced in the collection.
What I have tried, I started using LINQ to get the object I am looking to modify. After a little more research I don't think this can work properly due to the LINQ query returning a new object(copy of the object). Currently I am using nested foreach loops which still are not behaving the way I expect as the properties I am setting are not making their way back to the original object.
The PopulateLogSheet() in the following class is where the problem loop is.
class ChillerCheckCollection {
public List<Chiller> chillers = new List<Chiller>();
public void LoadChillers(string filePath) {
var availableChillers = (from chiller in Xdocument.Load(filePath).Descendants("chiller")
select new Chiller
[Code] ....
And here are the other classes referenced in the above class.
class Chiller {
public IEnumerable<LogSheet> chillerLogSheet = new List<LogSheet>();
public int chillerID;
[Code] ....
Here is the problem:
Write an algorithm such that if an element in an M * M matrix is 0, its entire row and column is set to 0.
Your function prototype may look like the following:
void setZeros ( int size, int arr[][size] );
Heres what I have:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define SIZE 3
void scan_matrix(int arr[][SIZE]);
void print_matrix(int arr[][SIZE]);
void initiailize_matrix(int arr[][SIZE]);
void set_zeros(int matrix[][SIZE]);
[code]....
I'm not sure on how to scan zero for this code and I have bolded some comments that I am having trouble with as well.
I have an array of char representing pixels in a bitmap, which I want to modify. I don't think I can just iterate over the array and pass chars into a function individually, because the function needs to take into account the neighboring pixels, too.
I thought of two ways to do this. The first would be to pass the array to the function as an argument, then have the function change it and return it. The trouble is I'm not exactly sure what happens internally when you pass an array to a function and return it. Is it the same array, modified? Or is it a copy of the array, so now you're using twice as much memory?
Alternatively I guess I could have a function with a void return type and pass a pointer to the array. I'm somewhat new to this, but the way I understand it is that a pointer is like the address of a house, while the array is the actual house. So if I give the function the address, it can go to that address and rearrange the furniture inside the house. Then, after the function returns, I can go to that address myself and see all the rearranged furniture, even though the function has already returned.
Is there a problem with the second way? It seems a bit neater, but maybe I'm understanding pointers wrong.
I'm trying to put in my messages, in my program, some special chars but when i try something like the following code, i get the output below.
#include <stdio.h>
int main( ) {
printf("Trying this char: %c", 160);
printf("Trying this char: %c", 163);
return 0;
}
Output:
Trying this char: �
Trying this char: �
How can i put those special chars? I would like to use: é, ú, ç, à, Ú, À, ...
I have to read a particular student data from file using his Roll no and modify it and then save it to file again
This is the File
24 salman 98 97 96 95 94 A ;
21 faizan 88 87 86 83 85 B ;
35 Gohar 99 98 97 96 90 B ;
45 sibghat 91 92 78 85 88 C ;
009 john 89 87 91 78 95 C ;
how can i read data of roll no 35 and modify it and save it again to the file
this is my program
int r = 0 ;
while ( ar[j]!="0" ) {
//cout << "Salman majid is
" ;
if ( ar[j]==k ) {
r = j ;
getdata() ;
[Code] .....
I would like to understand how to rotate a 3D Object around it's Center, by modifying it's Vertex Coordinates. N
The reason is that I need to keep track of the new coordinates because of my collision system, which is based on Vertex Coords.
Here is the Code for an Object
void DrawHouse(GLfloat x1, GLfloat x2, GLfloat y1, GLfloat y2,
GLfloat z1,GLfloat z2, GLfloat u1, GLfloat u2, GLfloat v1, GLfloat v2, GLuint textid) {
glBindTexture(GL_TEXTURE_2D, textid);
glBegin(GL_TRIANGLES);
glNormal3f( 0.0f, 0.0f, 1.0f);
glTexCoord2f(u1,v1); glVertex3f(x1,y1,z2);
[code]....
I've got
[tranlated]
Code:
error C1083: cannot open: '[!output PROJECT_NAME].h': No such file or directoryd:program files (x86)autodesk3ds max
2012maxsdkhowto3dsmaxpluginwizard emplates1033atmospheric_type_atmospheric.cpp1513dsmaxPluginWizard
I opened the project
Changed it to vc100
Changed it to x64
Disabled optimization
And compiled
And the results are shown above
I am having trouble modifying a linked list. I am writing a function to delete the last node from the linked list, but it gave me incompatible types error.Here is my struct:
Code:
typedef struct PCB{
int id;
struct PCB *next;
struct PCB *prev;
}PCB_rec, *PCB_p;
Here is my function to delete the last node (given the pointer is pointing at the last node of the list):
Code:
void del_last_node(PCB_p *process_list){
PCB_p temp = process_list;
if (temp->prev != NULL){
temp = temp->prev;
[Code] ....
And here is how I called the function:
Code: del_last_node(&process_list);
It gives me the following errors:
initialization from incompatible pointer type at line:
PCB_p temp = process_list
assignment from incompatible pointer type at line:
process_list = temp
There are many libraries in C++, but how are they made?
For example: SDL, SFML, Open CV, STK
There are no special functions in C++ from which we can create such libraries, If I wanted to create a library that processes sound signals, how would I do that? How can I access the mic, speakers and process the signals.
Open CV processes videos but which functions does it use?
I have an array in a class with some numbers in a specific order. Now I want to create a set with references to that array ordered after the arrays content. I thought a solution could be something like
class Holder {
int o[10]= {1,5,7,2,3,8,4,9,6,0};
public:
set<int,my_order> m_s;
Holder() {
for(int i=0; i<10;i++) {
m_s.insert(i);
[Code] ....
How to create the my_order.
I have to make an email validation program and i am halfway done. I only have one more problem, consider the ff. example:
Enter email:
myemail.@something.com //this is the input
Invalid //this should be the output
How can i determine if there is a special character near the '@' sign? and vice versa?
how to rearrange lists in an special manner.
I have heard about the hashset but I do not fully understand how that thing works or if it is the best option for this issue.
Basically I have 3 lists: LIST1, LIST2 and LIST3.
LIST1 is a set of xyz points and LIST2 shows how the points are connected (clockwise, counter clockwise, coolinear).
For example the fact that in the first line of LIST2 appears 0, 1, 2,-1 means that the points in LIST1 are connected as follows:
(0 0 128.588459085565)->(25 0 134.979628462965)->(0 0 134.979628462965)
Same for line2 of LIST2: 1, 4, 2,-1
(25 0 134.979628462965)->(25 0 140.100717207301)->(0 0 134.979628462965)
etc...
The value -1 at the end of each line does not mean anything but I need to keep it.
Finally LIST3 tells me if the points are connected counterclockwise (-1), clockwise (1), or coolinear (0).
The thing is that I want to get things as follows:
If the values of list 3=1 then I need to extract all the points in the list 1 that correspond to the value 1 in order. However the values in LIST2 cannot keep being 1, 4, 2,-1 they need to be reorganised starting by zero. Expected result in LIST2= 0,3,1,-1.
We need to do this for each value in list3 (1,-1 and 0).
The idea is to get 3 groups of values:
- Group 1 including all the values that are clockwise (list3) with the points in order in list1 and showing connections starting from zero on in list2.
- Group 2 including all the values that are counterclockwise (list3) with the points in order in list1 and showing connections starting from zero on in list2.
- Group 3 including all the values that are coolinear (list3) with the points in order in list1 and showing connections starting from zero on in list2.
The idea is to be able to print 3 files in the following way:
FILE1:
Points which are clockwise in LIST 1
...
Connections of those points in LIST 2
...
FILE2:
Points which are counterclockwise in LIST 1
[code]....
Code:
Exercise. 1.5 A number is special if it is divisible (no remainder) by 15. A number is big if it is greater than 999. A number is weird if it is divisible by 5 and 6 but not 18. A number is scary if it is big or weird.
Write a program to check which of the following, 450, 540, 600, and 675 are special but not scary.
Declare four variables called special, big, weird, and scary and make suitable assignments to these variables as a number is tested.
I want to do it with a function, but it just output that everything is Special and Scary, and that everything values 4199536.
Code:
#include <stdio.h>
#include <stdlib.h>
/* Function */
int test(int);
int test(int a) {
int sc, sp;
[Code] .....
Let assume that there is an array of integer numbers in the range from 1 to N that are located in the ascending order. For example
#include <iostream>
#include <numeric>
#include <iterator>
int main() {
const size_t N = 20;
[Code] .....
How can it be converted using some one standard algorithm such a way that the resulted sequence would look like
1 3 5 7 9 11 13 15 17 19 20 18 16 14 12 10 8 6 4 2
I have a file that contain different content, some lines inside that file looks like that :
Time : xx:xx:xx
Time : xx:xx:xx
So, I want to grab lines that start with "Time : " and put them inside a list<string> for later use. I am using windows so I don't know if the newline character is '
' or '
' also I don't want my grabed line contain any special character.
I have this code, but didn't work well because some special characters remain inside the string.
Code:
string buf;
list<string> ls;
ifstream read("test.txt", ios_base::binary);
while(!read.eof())
{
getline(read,buf,'
[Code]...
In my app the user can select the pages to print by typing in a start and an end page. I think this is the standard dialog.
How can I give the user the possibility to select e.g. page "1,2,6-9" like in Word?
I have this code which performs the analysis part of discrete wavelet transform. It works pretty well. However, I wish to reduce the time that it consumes even further. I did use reserve() and it worked upto few msec.
int rows = signal.size();
int cols = signal[0].size();
int cols_lp1 =(int) ceil( (double) cols / 2);
vector<vector<double> > lp_dn1(rows, vector<double>(cols_lp1));
vector<double> temp_row;
temp_row.reserve(512);
[Code] ....
I'm searching a program that can detect a special type of memory leaks, like these:
int a = 12;
char c[10];
char cc = c[a];