I must be going insane. This is incredibly simple so I am apparently overlooking something:
Here is my code:
int salesarray[20];
scanf("%d",&sales_input);
printf("sales_input is %d",sales_input); ...
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I am trying to make a simple client and server. Right now I am able to prints the contents of a file out to the screen. I would now like to ... |
Hi Suppose that I want to create an array of read only items I overload the [ ] operator. How can I detect if I am being called within a read context foo = Array[23]; or within a write context Array[23] = foo; As far as I remember, this is not possible in C++. Thanks |
I am lost on my homework and need help .... here is what I am trying to do and the code I am working on is below it Write a program for Matrix addition for two 3 by 3 matrices. -Take the input from the user. -Print both the input matrices and the output matrix. #include main() { int aArray[3][3]; int ... |
hey guys, i am trying to read a csv file into an 3d array. the file format is the following: ABC,"12 aug 2006",323.343,5454,4545.4545.4545... .. ... ... ... for 762 rows and 7 columns. how can i read this file into a 3D array, one for the column one for the rows and one for the length of the stream.. thanks guys. ... |
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#include #define SIZE 4 int main (void) { int matrix[SIZE][SIZE]; // 4 x 4 element 2 dimensional array... int xpos,ypos; // x and y matrix positions // fill the array with numbers for (xpos = 0; xpos < SIZE; xpos++) for (ypos = 0; ypos < SIZE; ypos++) matrix[xpos][ypos] = xpos * ypos; // display array content for (xpos = ... |
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Hi, I was just wondering if anyone can help me with this problem? For some reason it won't allow me to store the input from the user into a single element of the array for example: > Please Enter Your Full Name: David Jones >Please Enter Your Phone Number: > Please Enter Your Credit Card Number: > You Have entered: Name: ... |
n Nothing is expected; instead, the number of characters consumed thus far from the input is stored through the next pointer, which must be a pointer to int. This is not a conversion, although it can be suppressed with the * assignment-suppression character. The C standard says: "Execution of a %n directive does not increment the assignment count returned at the ... |
So I thought this was the simple bit of my project but already have run into trouble! This does not bode well... I am trying to read 2 files which contain a list of numbers. These files could be in windows or unix format so I need to consider \r\n or just \n I want to put these numbers into 2 ... |
Hi, I am new to this board and thanks for reading my post. Here's my problem. I need to write a code, that could import arrays from csv or txt (and preferably xls - but read it online that it seems rather impossible) into the code. The situation is that, I have an existing code and need to modify it so ... |
/********************************************************************** read_vector(): This function will read in a vector of size n into the array v. It will prompt the user to enter n elements, then it will read in the elements, one at a time. The elements entered will only be separated by white space, but they can span over multiple lines or be on the same line. **********************************************************************/ void ... |
So, i have this program for correcting syntax errors written in C, from the K&R book. Here is the code below. My question is, how can i modify this code so that the program does this: 1. I enter the program in console mode - after that i write in the name of the C project which i want to check ... |
Hey, I have 0 experience in C (although I know R somewhat well and know a little with Perl) and was assigned a completely unreasonable assignment in my R computing class. I'm trying to read in a text file into C as a multidimensional array. The data is 100 rows by 6 columns and contains positive and negative values with decimals ... |
Code: #include #include int main(int argc, char* argv[]) { int count; //ask the user for how much array to make printf("How many double values do you want me to average? "); scanf("%d", &count); //make array double *array = (double*) malloc(count * sizeof(double)); assert(array != NULL); //read in the values printf("So you want me to read in %d values. What ... |
/* The following function takes a file name and an address of a character array and read the file of characters into the array. Array and size are passed by their addresses Reads the BMP image from a file to an array */ void readImage(char* infile, Bitmap *bitmap){ FILE * input = fopen(infile, "br"); } |
int read_in(int array[MAX_PRICES][MAX_NAMES]) { int dataIn; double ch; int prices = 0; int names = 0; FILE *fp1; fp1 = fopen("INPUT.txt","r"); if (fp1 == NULL) { printf("Error opening file\a\a\n"); exit (100); } while( ch != EOF) { if(names < 6) { while (prices < 6) { fscanf(fp1, "%lf /t", &ch); ch = array[prices][names]; prices++; printf("%lf",ch); printf("\n"); } names++; } printf("%lf", ch); ... |
Hi Guys, I haven't used C for a while so I am abiot rusty, so I need to revert back to basics. I want to create a logic gate sim in C and run it throug the CMD prompt. The user will select the gate that they want, then they will be asked how many inputs for that gate(some gates can ... |
#include #include void main() { int **ptr,**ptr1,i,j,row1,row,col; ptr1=NULL; clrscr(); printf("\nenter no of rows "); scanf("%d",&row); printf("\nenter no of columns "); scanf("%d",&col); printf("\nenter matrix\n"); for(i=0;i0 && col>0) { for(j=0;j1) { for(i=0;i |
Code: int x, y,z; char arr[5][5]; for ( x = 0; x < 5; x++){ for ( y = 0; y < 5; y++){ z=read(pipe, buf, PIPE_BUF); // You read into buf, and z contains the number of bytes read. // as a side comment, z is really not a good name here - it implies that it's // got something ... |
#include #define MAX_SIZE 100 int getinput( double outputList[]); // function prototype int main (void) { int array[] = {3,4,5,67,5,43,2,2,3,4,5,5,6,5,4,2,3,5}; getinput(array); // function call return 0; } // end main int getinput( double outputList[]) { // function definition int numFound = 0; // counter for (numFound = 0; numFound < ; numFound++) { printf("%d\n", outputList[numFound]); } return numFound; } // end ... |
#include #include int main (void) { static const char filename[] = "file.txt"; FILE *file = fopen(filename, "r"); if ( file != NULL ) { int ch, word = 0; while ( (ch = fgetc(file)) != EOF ) { if ( isspace(ch) || ispunct(ch) ) { if ( word ) { word = 0; putchar('\n'); } } else { word ... |
#include #include FILE *fin, *fout; main() { int A [4] [5] ; int r = 0; int c = 0; int r_max = 4; int c_max = 5; int i; fin = fopen("matrix.txt", "r"); fout = fopen("output.txt", "w"); for(i = 0; r < r_max; i++) { for(j = 0; c < c_max; j++) { fscanf(fin, "%d", &A[i][j]); fprintf(fout, "%d ... |
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Ok, I'm not an expert here of course but I'm having a difficult time with array's. Here's the question... User enters in a number regarding how many inputs to be entered (ie. 2.3, 4.5, 2.0). Then the user is asked to enter a number 1-10. Now what this number does is starts at the predetermined array and goes back wards to ... |
Read Array pro!!Plz help!! Hi all, i got trouble reading array file sample file to be read: --------------------------------- START 3 . 000 2 100 . 000 . 000 0 100 1 050 . 000 . 000 . 000 . 000 . 000 . 000 . 000 . 000 . 000 . 000 END START 2 . 000 2 100 . 000 ... |
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Array, reading in response etc... Hello, First thanks to all who have helped me get to this point. I have a general question on how to tackle this section of problem. I need to read in a response from user (from 1 to 7) to determine the size of font to use in the text held in the structure array. Understand ... |
Hi everybody I am trying to write a code in C to read a text file that consist of 2 lines, the problem is i would like to read each line into a different array, ex. line1 into array1[], line2 into array2[] .. etc so in the end i will have the lines stored into different character arrays, and i can ... |
Code: #include #include // for log using namespace std; double complexity(const double* S, double T) { double c = 1.0; int l = 1; do { int kmax =1; for (int i=0;i= T-1) return (++c); } if (k >= kmax) kmax = k+1; } ++c; ... |
firstly, thanks for your help peenie, u were awsome... and for that other guy who replied my message before (the guy telling me to correct all that stuff), chill out man, i've never done this whole posting a forum thing before.... i hope this more to your satisfaction... oh sorry, i'm not doing capital letters, will u be able to read ... |
I have the following two functions... Code: void printList (Listtype List) { int i; system("cls"); cout << List.size; for (i=0; i < List.size; i++) cout << i+1 << " " << List.person[i] -> lastname << " " << List.person[i] -> firstname << " " << List.person[i] -> age << endl; cout << "\nSize of list = " << List.size << " ... |
I think the problem is actually here: return numb1[i], numb2[i]; The line number referenced is showing the open bracket of the function, and it's indicating that bracket isn't closed. However, I think it ignored the close bracket in the "for" loop because of this line. The function can't return anything, it's declared as return void. Even if it had a return ... |
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If i have a data file which the first line contains the row column information of a matrix, followed by on the next line the actual matrix data. Im having trouble reading in the values of the matrix into an array ive been told the [] has to be overloaded 2 times, int row, int col infile>>row>>col; for (i=0,i |
#include #include #include int main() { int i= 1; int number, integer,choice; int ArrayN[20]; for(i=0;i<20;i++) { printf("Enter 20 Integers\n"); scanf("%d", &number); printf("ArrayN[%d]=%d\n",i,number); } printf("\n"); getch(); do { system("cls"); printf("Type 0 to Exit or 1 to Continue then press Enter\n"); scanf("%d",choice); switch(choice) { case 0: exit(EXIT_SUCCESS); break; case 1: printf("What Number would you like to search for?\n"); scanf("%d", &integer); ... |
#include #include #include typedef struct{ char lname[20]; char fname[20]; int salary; }employee; const int max = 2; int main (){ int count = 0; int j = 0; employee emp; FILE *input; input = fopen("input.txt","r"); while (!feof(input) ){ fscanf (input,"%s\n ",emp.fname); fscanf (input," %s \n",emp.lname); fscanf (input," %d \n",&emp.salary); } do{ printf ("FNAME: %s \n ",emp.fname); printf ("LNAME: ... |
Permalink Jul 2nd, 2009 0 Help with arrays and reading and writing txt Expand Post In this c program I have to be able to read from a file that can have up to 40 students. print the high, low, and average of quizzes, and students grade while quiz 1, 2, 3 are 50% and 3, 4 are the other ... |
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