I need to dynamically build a control file for a SQL loader but when tokenizing line values read from a file i am unable to work/assign the last value to a variable even though i can print the actual token value while in the loop.
Below is the code snippet i have and get:
Code:
//headElement declared as headElement[42]
//getCol function is used to decode column keys present in line being read
istringstream ss(line);
I need to dynamically build a control file for a SQL loader but when tokenizing line values read from a file i am unable to work/assign the last value to a variable even though i can print the actual token value while in the loop.
Below is the code:
//headElement declared as headElement[42] //getCol function is used to decode column keys present in line being read istringstream ss(line); wfile << "LOAD DATA " << endl << "INFILE * " << endl <<
I'm get input from the user and then storing it in "s " and then trying make tokens, but it is not working, and after making tokens I'm counting them. Here is My Code
Code: #include <iostream> #include <sstream> #include <string> using namespace std; int main(){ string s;
[Code] ....
Here is my Output
Enter text: Entered Text is: This is String token 1: This token 2: is token 3: String token 4: Number of tokens: 3
The problem is that i want to store the first two strings "This" and "is" into two variables and how to remove token 4: which is unnecessary .
I'm making a game that requires the user to enter a correct username and password to play. I have a list of accepted ones saved in a txt file. How do i read each line of the file and check it with the one entered? I know how to use strcmp(string1, string2). I just need to know how to move from one line to the next. This is what I have for this part of the program so far. Also, I think im using the feof() wrong.
In another forum, this example code fragment was stated as being an example of undefined behavior. My understanding is that a literal string exists from program start to program termination, so I don't see the issue, even though the literal string is probably in a different part of memory.
Code: /* ... */ const char *pstr = "example"; /* or even */ char *pstr = "example"; /* as long as no attempt is made to modify the data pointed to by pstr, */ /* unless pstr is later changed to point to a stack or heap based string */
I am having problem in writing the code for the problem "To assign the elements of 1-D integer array into 2-D array of integers such as if the array is 1,2,3,4,5,6 The resultant 2-D array should be like :
I want to assign a char to an array inside an if statement after the user has input the grade as an integer, but it has to fill an array with characters, such as:
char grades[5]; int grade; char A, B, C, D, F; cout << "Enter da grade" << endl; cin >> grade; if (grade < 59) { grade[0] = F;
[code]....
A, B, C, D, and F won't transfer to the array, thus giving me the uninitialized variable error in microsoft visual studio 2010.
I have been attempting to store mathematical functions in a file by parsing them into a linked list with a variable sized char ** array as my storage device. I have ran into problems with the memory management detail. The program crashes before output is flushed to the console, so printf() wasn't a debugging option. Neither is my actual debugger, since it seems to get a SIGTRAP every time. I have my warnings turned all the way up, but no errors or warnings are appearing. The part I know works is the actual code that opens the file and gets a line from the file. As far as the two functions that implement the linked list, that is most likely where the problem lies. My current attempt is basically to store the size of the dynamic array in the structure and keep resizing it until there are no more tokens. Then I will store the number of elements of the array in the structure and move on to the next node.
I have a problem with rotating an array and assigning it to different variables. This is wat i have done.
Code:
#include<stdio.h>#include<stdlib.h> #include<conio.h> #include<math.h> int n[16],a[16],n1[16],n2[16],n3[16],n4[16],n5[16],n6[16],n7[16],n8[16],n9[16],n10[16],n11[16],n12[16],n13[16],n14[16],n15[16],n16[16], c=0; int x[16],i,j,k; int rotate();
I'm trying to write a very simple program that takes values in through variables, and stores those values in a two dimensional array. The values are already passed into the void function, I need to have those values write to their corresponding locations in the array.
void planeSeats(int seats[13][6], int ticket, int ticketRow, int ticketColumn) { if (ticket = 1) { if (ticketRow >= 1 && ticketRow <= 2) {
[Code] ....
For example, lets say that ticketrow is 2 and ticket Column is 4 .
What I need is for ticketRow and ticketColumn to assign that data to seat[ticketRow][ticketColumn], turning it into seat[2][4]. How to do that.
I'm working on a program in C++ that is supposed to read in a file, store the content of the file into a 2D array, assign characters to each of the numbers in the array and store in a char array, and print both of these arrays. It's then supposed to go through the initial array and make sure that each number doesn't differ in value from it's neighboring numbers by more than 1, correct these errors by replacing these numbers with the value of the average of their neighbors, assign characters to this corrected array as it did before, and print both arrays.
The character assignments go as follows:
0=blank 1=. 2=, 3=_ 4=! 5=+ 6=* 7=# 8=$ 9=&
I have the code written that opens the file and loads the array, but where to go from there. To me the obvious, although probably not best, way to do the assignments is to go through the array with a for loop and use a series of if statements to check for the value of the number at each index and assign the appropriate symbol.
Here is the code I have so far:
#include <iostream> #include <fstream> using namespace std; int main() { int size = 100, i, j; prog >> size; int **numArray = new int* [size];
I have a simple problem about memory allocation.In the function Nr_elements() i assign a value which represent the elements of array. The pointer p is initialised with the address of variable n, but when i compile i dont know why but dont work. This function return a pointer.
Code: #include<stdio.h> #include<stdlib.h> int *Nr_elements(); int *allocate(int); void deallocate(int *); [code]....
I want to assign prime number to the element of an array.
#include "stdafx.h" #include <iostream> #include <conio.h> //For Console Input/Output function like clrscr & getche using namespace std; //Using the "standard" namespace of iostream class
Basically I am making a console RPG (isn't every beginner nowadays?) and I am having an incredible amount of trouble assigning specific characters their own color. e.g. monsters being red, cash being green, etc.
I took out Left, Right, and Down controls because of character constraint.
#include <iostream> #include <windows.h> //%%%%%%%%%%%%%% COLOR CALL %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% void setcolor(unsigned short color) { HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE); SetConsoleTextAttribute(hcon,color);
I'm okay with 2-dimensional arrays, but when I get to 3 or more, I can't seem to wrap my head around how to assign and/or pull values from specific parts.
To give an example, let's take the following example:
We know that a player can take up to 5 total quests, and each quest can have a max of 5 tasks.
Let's assume I have the following multi-dimensional array holding all of a players quest data:
quests[0] = 78;// Store the questID quests[0][0] = 3945;// Store the 1st creature ID quests[0][1] = 2230;// Store the 2nd creature ID quests[0][2] = 3045;// Store the 3rd creature ID quests[0][0][0] = 2;// Store how many needed of the 1st creature quests[0][1][0] = 5;// Store how many needed of the 2nd creature quests[0][2][0] = 13;// Store how many needed of the 3rd creature
As we know, the above code can't be done. How do I assign certain values to each specific dimension?
I'm trying to create an array of function pointers and then assign compartilbe functions to them, so I can just call *pf[0](xxx);
The functions are all of the type
void func01(unsigned char*, int, int)
how would I create an array of function pointers and assign the address of the functions to them? So I could call them like
ptrToFunction[i](charBuffer, 10, 20);
I've read a bit on line and I thought I could do it but so far I've failed.
It seems trivial and I feel I'm close but close isn't good enough.
I'd like to assign the fuction addresses like this: for (int i=0; i<10; i++) if (i==1) ptrToFunction[i]=func01; if (i==2) ptrToFunction[i]=func02; etc.
The actual logic is somewhat different than this but this close.
I am attempting to read values from a file into a 2d array temp[31][2] (31 rows, 3 columns).I only want the values from the file to be read into the first two columns.I believe I am accomplishing that but when I go to print the array, I expect the first two columns to have the file data and the third column to have all zeros. The third column, however is printing such that the value is the next row/first column.
I'm not sure for instance why on the bottom loop for line 1 it doesn't print:
Where col is a 'vec4' struct with a double[4] with values between 0 and 1 (this is checked and clamped elsewhere, and the output is safely within bounds). This is basically used to store rgb and intensity values.
Now, when I add a constant integer as a pixel value, i.e.:
buffer_rgb[i] = ((unsigned char)255;
Everything works as it should. However, when I use the above code, where col is different for every sample sent to the buffer, the resulting image becomes skewed in a weird way, as if the buffer writing is becoming offset as it goes.
You can see in the 'noskew' image all pixels are the same value, from just using an unchanging int to set them. It seems to work with any value between 0-255 but fails only when this value is pulled from my changing col array.
Whole function is here:
// adds sample to pixel. coordinates must be between (-1,1) void Frame::addSample(vec4 col, double contrib, double x, double y) { if (x < -1 || x >= 1 || y < -_aaspect || y >= _aaspect) {
I have to write a loop assigning a variable x to all positions of a string variable and I'm stuck. I don't have extensive experience with arrays and I'm also a bit confused about C-String. The problem is below.
"Given the following declaration and initialization of the string variable, write a loop to assign 'X' to all positions of this string variable, keeping the length the same.
char our_string[15] = "Hi there!";
(Please note this is a 'C-string', not C++ standard string.)"
Very new to programming, and I know that there must be another way on inputting a string into each array cells not by just inputting it one by one, but as a whole. My code at the meantime is: [URL]
/*assume array is already initialized and declared and is of array type string.*/
int i = 2; int j = 1; string newvalue; cout<<"Current value at array[i][j] is "<<array[i][j]<<endl; cout<<"Enter new value "<<endl; cin>>newvalue; array[i][j]= newvalue; //PROBLEM IS IN THIS LINE. cout<<endl; cout<<array[i][j]<<endl;
I'm having lots of trouble with storing a cin string text into a string array. It just seem that after I cin newvalue, the program crashes. Is this way of storing it considered illegal? I'm just a beginner with 5 months of coding experience in C++.
I'm trying to "tokenize" a string using std::string functions, but I stored the text in a char array. When I try to convert it to a string, the string has the first character right but the rest is garbage.
// Get value from ListBox. char selectedValue[256]; memset(selectedValue, NULL, 256); SendMessage(GetDlgItem(hWnd, IDC_LB_CURRENTSCRIPT), LB_GETTEXT, selectedIndex, (LPARAM)selectedValue); // Convert to string. string val(selectedValue);
