[c] Forum Topics

I've been dealing with this problem for about 2 days now. Write a program that accepts the price of an item and displays the discounted price. Accept also the amount given by the customer (assume the amount is greater than or equal to the discounted price) and display the change. …

Read the age and weight of 5 people. Calculate the sum of the ages of people over 70 Kg #include <stdio.h> int i, age, weight, sum; main() { for( i=0; i<5; i++) { printf("Age: "); scanf("%d",&age); printf("weight (ex: 92.5): "); scanf("%d",&weight); if(weight>70) sum=sum+age; } printf("\age sum: %d", sum); return(0); }

how to insert photos in c programming?

How do i make a validating of only number and make characters invalid if entered. Using this method #include<stdio.h> #include<string.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<ctype.h> int main() { int arr [100],el,number ; // for(int i=0;i<100;++i) //scanf("%d",arr[i]); while( el == 0 ) { printf("Enter a number between 1 to 100"); scanf("%d", &number …

Say I have this definition: #define SIZE 2000 typedef enum { TRUE, FALSE }Boolean; typedef struct{ char jobTitle[30]; char jobDesc[255]; char jobLoc[255]; float salaryMin; float salaryMax; Boolean isAvailable; }jobInfo; typedef struct cursorNode{ jobInfo jobRec; int next; }HeapSpace[SIZE]; typedef struct hnode{ HeapSpace heap; int Avail; }*VHeap; typedef int List; typedef struct{ …

I have a problem. I have a function that search a string in a text file. This function return an int: 0 if the string I must be search isn't in the file, 1 otherwise. The problem is: if the searching string is "input1" and in the file there is …

Write a code snippet to declare and accept an integer and calculate the cube value of the integer. The integer should be passed by reference to a function cube(). The function would calculate the result of cubing the integer. The function prototype to be used is: void cube (int *p); …

**Program:** #include <stdio.h> int main(){ int array[5] = { 0,1,2,3,4} ; int * p1, **p2 ; int * parray[2] = { NULL , NULL }; p1= & array[2] ; *p1 = 20 ; p2 = & p1 ; ** p2 = 30 ; parray[0] = & array[0]; parray[1] = & …

Hello guys, okay? I have a problem and I wonder if anyone can help me. Well, as the title of the topic says, the problem is about the C language, and more specifically on GUI. I made a C program it is working and everything is ok. But the problem …

In Turbo C , I am using bios.h to send and receive data on serial Port. I am using bios(2, 0, COM1) to receive data.... and bios(1, in, COM1) to send data..where (let int in=65 I am receiveing data from Port but unable to send... I copied code from [url]http://electrosofts.com/serial/[/url] …

Is C really a good language do have under your belt? Would it be better just to learn C++?

Is C a good language for webapps compared to python and ruby?

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I need to know if I'm doing this right. I just recently started Psuedocoding and I'm still confused about it. If I was to test this code would it work? Declare Employees[100] as String Declare Salaries[100] as Integer Declare K as Integer Declare Average as Integer Set Sum = 0 …

Here's the problem: Write a program that will input values for A and B. Compare two values inputted and print which of the values is higher including the remark “Higher”. So here's what i've done so far main() { int A, B; clrscr(); printf("Input Value for A: "); scanf("&d", &A); …

I am using C/C++. I am using geany for editing my codes. I want to use beecrypt in my programs. But ofcourse, it is not included by defualt. I have downloaded beecrypt library already but don't know how to use it with my programs. I have put my program in …

Main.cpp #include <iostream.h> #include "functions.h" int main(){ print_hello(); cout << endl; cout << "The factorial of 5 is " << factorial(5) << endl; return 0; } hello.cpp #include <iostream.h> #include "functions.h" void print_hello(){ cout << "Hello World!"; } factorial.cpp #include "functions.h" int factorial(int n){ if(n!=1){ return(n * factorial(n-1)); } else …

Hi! I'm a student learning C language. During my exercise I have faced a weird problem(atleast to me). I have encountered two declarations: int size; int arr[size]; I'm unable to figure out the actual dimension of the array and its lenght as the variable `size` is only declared not defined; …

Often times it is useful to instrument a program you do not have the source to in an attempt to learn more about it. This can be for debugging purposes, blackbox testing, or for providing alternate versions of common functions/libraries (to name a few). On Linux, there is a very …

I want to build an own interpreter using c programming and I want to call it in command prompt. How would i do this? I just want to start a command "display" which can display the contents of a file like type in cmd.

Hi, What is the difference between "__inline__" and "inline"? I have programs with both. "inline" works, "__inline__" has an error "Unable to resolve identifier __inline__" thanks

This is my first post on Daniweb so forgive me if I make any mistakes. Introduction: I recently graduated from Dev Bootcamp. It is an accelerated 9-12 week camp which teaches Ruby and Rails. A traditional computer science degree will teach students algorithms, data structures etc before moving onto higher …

I'm trying to search a text file for a string indicating the path of a folder which I will then use as a path to write a text file into. My code above successfully returns the location of the path /home/caars/speech_reg/commands/ to the pointer to find. Now I am trying …

I want to Delete every occurrences of Pattern in String. But What's the problem? Please help with the following C Code. #include<stdio.h> #include<string.h> #include<stdlib.h> char* SUBSTRING(char *STRING,int POSITION,int LENGTH); main() { char STRING[100],PATTERN[90]; int X,P; printf("(Input)Enter string & pattern with space between them: "); scanf("%s%s",STRING,PATTERN); X=INDEX(STRING,PATTERN); P=strlen(PATTERN); printf("Output: %d\n",X); while(X!=0) …

1. What is the difference betwen high level languages and low level languages? 2. What does a high level language do that a low level language cant? 3. Is c# an extnsion to c++?

I am trying to make a function that rounds number.. I declared the function above the main and voided it Then I recalled the function in the program and listed the variables needed in brackets and then I wrote the function I can't work out what is wrong. [ICODE]#include<stdio.h> #include<math.h> …

As a beginner at programming, I have been programming with OO languages for 3 years and I can not really imaging programming in a non OO environment so I have a few questions: 1. Is there any advantage using procedural than oo? 2. What kind of programmes do you write …

I am confused about pointer , it takes value of a vairable or only takes adress of vairable ??

I've just finished my programming course in college and I need some projects or ideas for 'practicing' and making sure I don't forget some part of C programming. I would love for you to either give me some ideas or point me to sites with mini project from easy to …

I'm trying to remember the name of a site - *pretty sure it was a wiki* - where you post different ways of writing the same program in different languages. I. E. writing "Hello World" or heap sorts in C, C++, Java, Haskell, etc. My google-fu is failing me, so …

Receive a number from the keyboard and tell you if it is divisible by 10, 5, 2 or if it is not divisible by any of these. Why this dont work? #include <stdio.h> #include <stdlib.h> #include <math.h> main() { int num; printf("number: "); scanf("%d", &num); if (num % 10 == …

I guess most of you would have seen the algorithm for the following problem: **Input:** Set of intervals(time) **Output:** Partion of intervals into minimum subsets such that no interval in a subset overlaps. **The Algorithm:** Sort intervals by start times and look them in this order, put each interval in …

Calculate the total area and volume occupied by a cylinder. Correct or not? #include <stdio.h> #include <math.h> int main() { float At, V, r, h; printf("\n ===========Calculate the total area and volume occupied by a cylinder============\n"); printf("\n the base radius.......: "); scanf("%f", &r); printf("\n Cylinder height.: "); scanf("%f", &h); At …

i need help programming in quincy 2005 its about changing money for example i bought 2 $6 pencil and my money is $1000 grr.. dont know how to explain.. sorry for my bad english.. i forgot my notes at school and i need this code to pass it tommorow grr …

Hi I'm trying to undrestand socket functions.... (in C) arguments of bind() and accept() functions is ambiguous for me! signature of bind() : int bind(int sockfd, struct sockaddr *my_addr, int addrlen); // okay, no problem but in example's codes or in the program : bind (sockfd, (struct sockaddr *)& my_addr, …

I'm am a 44 year old male & due to a work related injury I am unable to work but am trying to plan for my future. I have a very messed up lower back. I don't know which way to go as far as the information technoloy field. I …

I know there are benchmarking programs that exist, but I've decided that as an exercise, I want to try and create some sort of simple benchmark program to test schedulers of my Raspberry Pi (CFQ, noop, deadline). I have been switching the schedulers and testing some linux commands using time …

Hi. I have created a blog on the blogger which teaches C programming language, and I am now concentrating on adding more programming languages to my Blog. But I am confused, how to optimize the content in my blog to make it more Search Engine Friendly. [Here](http://codingus.blogspot.com) is the link …

how can i create my own library in turbo c\c++ compiler (v.3)

Hi, I want to write a sniffer program which sniffs the packet from a Unix socket. Is it possible? I have written a small server and client programs using unix socket (sockaddr_un). Now I want to write a sniffer program which sniffs the packet from the socket. Am not able …

Hello I have to write a thesis on External Computer Devices and i have a problem decideing what to make as an application. Basicaly i write about ports, how they work, intrerupts, standards etc. I know the topic is very vague, unfortunately was to late to change the topic. Did …

Here is a code for those who wants Tic Tac Toe [CODE]#include <string.h> #include <stdio.h> #include <conio.h> #include <dos.h> #include <io.h> main() { //_setcursortype(_NOCURSOR); int x1=0, x2=0, x3=0, x4=0, x5=0, x6=0, x7=0, x8=0, x9=0; int o1=0, o2=0, o3=0, o4=0, o5=0, o6=0, o7=0, o8=0, o9=0; int a1=0, a2=0, a3=0, a4=0, a5=0, …

Hello guys, i have an .txt file like this -- Brasil Portugal Chile Espanha -- And i have to read this and put it in a array, i've been looking for this all day, but everyone ask me to do this in C++ using getline(), the problem is that i …

any suggestions on how to repalce the specific character with a different character within the string while running a loop? I am in a no prereq class and am not really connecting with this programming, any help, suggestions, tips on the specifically the replacment issue?

This is my problem. I am taking a class that is designed to be an independant study and the book only touches on the surface of the ideas covered. this code is a project that i am stuck on and cant really find any help anywhere else so i am …

I'm trying to parse equations like these which only has two values or the square root of a certain value from a text file: 100+100 -100-100 -(100)+(-100) sqrt(100) by the minues signs, parenthesis and the operator symbol in the middle and the square root, and i have no idea how …

Hey i was just writing a simple server i'm using accept() in a loop to emit constant greeting but i dont know why my code stucks at single send() i mean it asks for input only once --> it asks for input --> i give input--> it emits succsfully to …

please help me to understand the output void main() { printf("%x",-1<<4); return ; } -1 is represented as **1111 1111** so in hexadecimal form it should be FFh but compiler displays ffff ffff

My code is to open a window.(SDK)(dev c++, orwell) Instead of five seconds it takes a few milliseconds. Please help solve the problem. Just few day ago it worked but now ti does'nt. #include "SDL.h" //cool graphics API. Only works with 32 bit for me. #include <stdio.h> typedef struct // …

` #include<stdio.h> #define MAXLINE 1000 int getline(char line[],int maxline); void copy(char to[],char from[]); /*print longest input line*/ main() { int len; /*current line length*/ int max; /*maximum length seen so far*/ char line[MAXLINE]; /*current input line*/ char longest[MAXLINE]; /*longest line saved here*/ max=0; while(len=getline(line,MAXLINE)>0) if(len>max) { max=len; copy(longest,line); } if …