C :: Finding Next Day Using Structures

Jul 21, 2013

Ok, for my Sunday homework I have to find the next day of the year using structures. Now, I can get the structure to read the entered date (tested that with a simple scanf to printf entered data), but I need to get it to be able to tell that it is the end of the month and print out the next month when necessary. Here is what I got so far:

Code:
//Cameron Taylor
#include <stdio.h>
struct Date{
int month;
int day;
int year;

[Code] ....

As you can see, I am trying to use an array for the max day of each month (excluding Leap Year for now).

Where I use the entered month to = 'i'. Then I use 'i' as the position in the array to see if next.day is = to the max day of that position of the array.

I am having no compiler issues with GCC using -w or -Wall, but after entering the current day the program stops working and doesn't go beyond the input.

commiedic@localhost Project18$ gcc -o -Wall Exercise4.c
commiedic@localhost Project18$ gcc -o -w Exercise4.c
commiedic@localhost Project18$ gcc -w Exercise4.c
commiedic@localhost Project18$ make Exercise4
make: `Exercise4' is up to date.

[Code] .....

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C :: Reinforce Use Of Data Structures / Finding Highest Score

Apr 16, 2014

We're writing a program in class using data structures and arrays and I'm stuck on writing a loop to find the students' highest test score. I only return the first student's ID, test score, and grade. For some reason unknown to me I'm not actually looping through all 12 or so records.

Code:

#include <stdio.h>
#define MAX_ENTRIES 50
struct records
{ //declare my student records structure
int ID; //the student's ID number
int test_score; //the student's test score
char grade; //the student's letter grade of aforementioned test score
};

[code]....

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Apr 5, 2013

I have to do a project for Programming and he said in quotes

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Assume, as known, the ten (x,y)-values corresponding to x=0.0, 0.1, 0.3, 0.45 ..etc and use y-values from the

function xsin(x); as in (x,y)=(x, xsin(x)) = (0.3, 0.3sin(0.3)).

Use value n+1=10, so the LaGrange polynomial will be order = 9."

What does it mean to not represent the points using structures??

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Jun 23, 2013

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Nov 26, 2013

A user is supposed to enter student name, id, and grade then sort them by name, id, or grade. I managed to get it to sort by name and id correctly, but not by grade.

Code] .....

#include <string.h>
#include <stdio.h>
struct student{
int student_id;
char name[30];
char grade[15];

[Code] ....

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Aug 9, 2013

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Code:

int count = 0;
struct addx {
int a;

[Code].....

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Feb 26, 2014

I am bit confused in passing the structure to a function. I made a small code and it doesn't build !

Code:
#include<stdio.h>
struct Compute_off_Time(struct WHATTIME);
typedef union _Time {
unsigned long int Value;

[Code] ....

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May 4, 2013

So i have a program with the structure

Code:

char record[20];
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int level;
char fname[25];
}report;
int recno,i;
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Aug 12, 2014

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Mar 26, 2013

I wanted to sort two structure-arrays according to their element values and get their indices changed accordingly.For example if my array is

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indices[]={ 1 2 3 4 5}

then after sorting it should become

A[]= { 1 2 4 6 8}
indices[]={ 3 1 2 5 4}

I tried implementing it using the following code but I failed to get correct output.

Code:

#include<iostream>
#include<cstdio>
using namespace std;
#define inf 100000
struct array
{
int x;
int y;
};

[code]....

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Apr 28, 2014

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Sort the payroll data, and output the data to the file in order by gross pay (lowest to highest)

#include <fstream>
#include <iostream>
#include <cstdlib>

[Code]....

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concepts on pointers to structures and referencing for the following two lines.

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Jul 2, 2014

I created one structure and the created structure is using in few more structures, but i did not get the proper data.

typedef struct _MSG_HEADER{
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char AlphaChar[2];

[Code]...

My requirement is have to fill the MessageHeader structure & we can use that header in all the structures entire program.

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Mar 1, 2014

# include <conio.h>
# include <stdio.h>
# include <stdlib.h>
# include <string.h>

[Code]....

I tired changing the conditions in the for loops, but then I end up entering information multiple times and I want that to be the user's option. Do I have to change the for loops or something else? I've tried everything to get what I want but nothing works. When I print the receipt, only the last food Item that I entered prints.

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Feb 25, 2014

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[Code] ....

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here is the structure that I've defined:

typedef struct  {
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[Code] ....

I believe I have serious problems with pointers, values and dereferencing a pointer.

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Aug 4, 2012

I would like to write a program that prompts the user to enter a series of client names which the program will then store in an array of structures. I'm thinking something along the lines of:

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float fClientHoldings;
};
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I'm trying to write an object oriented application framework. The programs can be console or GUI based, but I'm having some difficulty providing a consistent interface for outputting structures. The structures will be displayed by a variable description and its value. So, for a RECT structure the output on console would look like the following.

Code:
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top 0
right 100
bottom 200

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Code:
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Dec 12, 2013

I do this because I want to transform the .x format into xml... The "frame" data structure can contain other frames, and a name for the frame and a transformation. For example:

Code:
struct frame {
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std::vector<struct frame> child;
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[Code] ....

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I have written library in c++ for c++ application. Here, data exchange between library and client through structure. This structure has 20 members ( strings, integers, reals, pointers).

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I think, If library provides functions for every combination, then it would end up with lot of functions. I want to avoid that.

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Code: struct Container
{
private:
int count;
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Nov 29, 2013

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Code:
if((stsPtr = fopen("status.dat", "rb")) == NULL){
prinft("File could not be created/opened.
");
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Jul 20, 2014

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Method 1:
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Method 2:
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Jun 9, 2013

I have to write a program that reads from a text file, which contains a list of stock hourly prices and the company names. Something like this:

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My question is, how do I read the data from the file and put the data from each line into the next structure in the array of structures? I read the numbers in fine. I just use:

Code: fscanf(fp, "%f", &companyAry[i].hourlyPrices[j]);

But my program crashes when I try to read the name.

Code: fscanf(fp, "%[^]", &companyAry[i].companyName);

I'm thinking it has something to do with the fact the companyName is a pointer.

My structure looks like this:

Code:

typedef struct {
char *companyName;
float hourlyPrices[NUM_PRICES];
float avgPrice;
}
COMPANY;

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Apr 9, 2013

I tried normal swapping method like this (counter is number of structures written in file) :

Code:
fopen("books.txt","r+");
system ("cls");
for(i=1;i<counter-1;i++){
for(j=1+1;j<counter;j++){
fscanf(f," %[^,], %[^,], %[^,],

[Code] ....

But it doesn't do anything.

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