19,876 Topics
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| | Hello folks, I have some doubt regarding the creation of header files and libraries using C. Suppose I am defining all the functionalities related to the Stack and I wan to create it as library, for eg. stack.C which will get me the object file, Stack.o in Linux OS and …  |
| | Hi I am trying to read a text file which has a few lines of double values I need to go line by line and put them in several arrays ex 4.2,3.4,5.7,8.7 2.5,6.4,4.4 How can I do this in C I also need to save the values in an arrays …  |
| | [I]<< Thread split from [URL="http://www.daniweb.com/forums/thread29933.html"]here[/URL] >>[/I] hello.. i did not get it the programs that u wrote it.. for my own.. im looking for the factorial of the number that we entered.. for example.. 12 the factor of this is 2 2 3..that wat i want to mean.. in wat … |
| | I have some code to parse POST and GET parameters passed to a CGI program written in C and I'd like to test it out. To parse GET parameters, I need to access the QUERY_STRING environment variable, so I'd like to set that environment variable to different things and see … |
| | Hi, I have this problem. If the sender sends messages consecutively, like message 1 and message 2 and at the receiver attempt is made to read each message individually, then the receiver gets the both messages as the message 1. Is there any built-in mechanism such that the receiver delivers … |
 | Hi all, I'm beginner in c++, I'm trying practice on c++ basics, since few minutes I tried practice "setw" operator, I wrote this trivial program to print some data in console screen, but when I tried build it it gave me error..! [CODE]//print game names and my prefer rating in …  |
| | hi, i'm having trouble compiling this code: SparseMatrix.h: [CODE] #ifndef SPARSE_MATRIX #define SPARSE_MATRIX #include <ostream> class SparseMatrix { //class data ... SparseMatrix operator+(const SparseMatrix& rhs) const; SparseMatrix operator*(const SparseMatrix& rhs) const; }; ostream& operator<<(ostream& out, SparseMatrix& rhs); #endif [/CODE] SparseMatrix.cpp: [CODE] #include "SparseMatrix.h" ostream& operator<<(ostream& out, SparseMatrix& rhs) { ... … |
| | the code takes each character and stores where and how many times a roman numeral appears and the assess the integer. this is my first code im posting. anything to make the code better is most welcome. roman numeral refers to M=1000 D=500 C=100 L=50 X=10 V=5 I=1 and uses … |
| | Hello, While compiling my code, I'm receiving a "Data access misaligned address violation" error. I tried to find the reason for the error, but am unable to pin point the location. I am trying to manipulate the amplitude envelope of an audio file, but this error occurs when i'm trying …  |
| | hi all, i am really stuck with c++ pointer issues. what my program is supposed to do is to take input from user and recognize whether the entered string is a valid word from the grammer S::= a|(S) hence grammer should accept words like... a, (a), ((a)),(((a))).... i have done … |
| | Hey, I was just wondering, but what code do you need to be able to press a few buttons on your keyboard. Like, if I want to type "Cheese is yellow on the moon!" I'll just run the program. Or if i want to do ctrl+alt+del to go to task …  |
| | [CODE=c] #include<stdio.h> #include<math.h> main() { int i=0,j,c,s[100]; double t=0; while((c=getchar())!='\n') { s[i]=c; ++i; } for(j=i;j>0;--j) { t=t+(s[i-1]*(pow(16,(4-((double)i))))); --i; } printf("%d",(int)t); return 0; } [/CODE] HI, i need to write a program that converts an hexadecimal number into integer form (for convenience i'm only considering hexadecimal no. without alphabets from a … |
| | Hi, I'm just wondering if there is a good place where I can find some tree implementations for c++ (Splay trees and Heaps, in particular). Any input on resources where there is source code for different tree implementations would be appreciated, as I don't have the time to write one … |
| | if I have this code : [CODE] # node* search2(node **root, int val){ # # node* temp = *root; # if(temp -> value == val){ # printf("found!\n"); # printf("ang root nfaun ay nasa : %d \n", temp -> value); # printf("dapat tigil na."); # return temp; # } # # …  |
| | I need help with this problem. I have tried writting the program, i just can not get it to run properly. Problem is: Create a function named 'circle_area' that will find the area of a circle. This function should have the following prototype: float circle_area(float radius) circle_area should return PI*r^2. …  |
| | Hello, I have a web app that on a buttonClick event it goes and checks a database for a particular field. if that field = a certain value, the app does something. is there a way to make this app run every x seconds rather than on a buttonClick? do … |
| | i am making a binary search tree, but when i use some functions and return their values, i get an error when i have to print those values. i don't understand why. please help. [CODE] #include<stdio.h> #include<stdlib.h> #define N 10 typedef struct nodetag{ int value; struct nodetag *left; struct nodetag … |
| | Hi, i'm trying to create a program so i can log every person I meet, which i have done quite easily with databases. However i would also like to be able to log each time i meet that same person which is where i can't figure out what to do. … |
| | [CODE=c] #include<stdio.h> void astrcat(char s[], char t[]); //to concatenate two string main() { int i=0,p=0,q=0,c; char s[100],t[100]; while((c=getchar())!='\n') s[p++]=c; while((c=getchar())!='\n') t[q++]=c; astrcat(s,t); while(s[i]!='\0') printf("%c",s[i++]); return 0; } void astrcat(char s[],char t[]) { int i, j; i = j = 0; while (s[i] != '\0') /* find end of s */ … |
| | Hi, I need some assistance in how to count the number of lines in a given file. It is a small part of a homework assignment I have and I am having problems figuring it out. I am to assume that in each line there will be a maximum number … |
| | [CODE] #define fst 1 int main() { #if( fst ==1 ) printf("FST\n"); #else printf("Dummy FST\n"); return 0; }[/CODE] if i replace the statement in line 4 with [ICODE] #if fst [/ICODE] also the code is working. can any one tell me what is the correct way , advantages and disadvantages.  |
| | I'm new to using delegates and invoke methods. Can someone please quickly identify what I'm missing here. I know this code is no where near completed right now, but as is, it's working for what I'm trying to test. Basically I'm creating a simple client application that is receiving a …  |
| | I am new to C programs. I have tried to write the code for game of life. I started with just the first part. But its still not done. There are some errors. could you please point out where I am wrong? [code] #include<stdio.h> #include<stdio.h> #define NUM_ROWS 100 #define NUM_COLS … |
| | Hello everyone I have been working on generic C data structure (Doubly Linked List) and I have a question: ------ List.c ----- [code] struct node { void *data; struct node *next; struct node *prev; }; struct list { unsigned int length; struct node *head; struct node *tail; }; typedef struct … |
| | I am attempting to get an input that can have varied types, float, int and a string are the three, I'm using sscanf to analyze the input from a buffer but for some reason I am getting memory access violations and I don't really know why. Main program: [ICODE] #include … |
| | I have binary search - this one , but i need to change it like this , that it will search : for example we have array {1,10,11,12,15,16,22,22,22,22,30,40} I want to find 22 but not randomly - or it will be first 22(that goes after 16) or last 22 (that … |
 | Hello! I have a question regarding the set up of my binary search. For my program I am working on, I have taken a .txt file full of first names and sent those first names to a string array. The names are then sorted, and from there I ask the … |
| | I am getting a seg fault when I try to run this code. The compiler is also giving me odd warnings about how an integer constant is too long for "long" type. Here is the code: Declarations [CODE] #include<stdio.h> #include<string.h> #include<stdlib.h> void printstates(){ printf("Enter the number for the corresponding state:\n\ … |
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 | oke I was coding some stuff involving 2d array allocating i normally know how to do it in main coz you don't need to pass adr main ptr that get's allocated but when i made it i got somewhat confused I don't know why it went wrong [code] #include <stdio.h> … |
| | Hi programmers, I want read line by line a Unicode (UTF-8) text file created by Notepad, i don't want display the Unicode string in the screen, i want just read and compare the strings!. This code read ANSI file line by line, and compare the strings [B]What i want[/B] Read … |
| | The leap year thing is troubling, eg 29-02-2009 is not a leap year but it still displays a day which it should not. [code] #include<iostream> #include<conio.h> using namespace std; int main () { int d=0,m=0,y=0,r1=0,r2=0,r3=0,r4=0,l=0; cout<<"Enter day : "; cin>>d; cout<<endl; cout<<"Enter Month : "; cin>>m; cout<<endl; cout<<"Enter Year : … |
| | hiiii... I wanna create a small application .And by giving a user name and password only it allows the user to enter in to the application . Here I wanna store the user name a and pass word in a text file and I've to check it with the password … |
| | Hello Friend i want C program to scan Operating System on network,and display the output and can it is possible to connect to that particular OS.....or is there any other way to achieve this thing.  |
| | [code=c] union u { union u { int i; int j; }a[10]; int b[10]; }u; main() { printf("n%d", sizeof(u)); printf(" %d", sizeof(u.a)); printf("%d", sizeof(u.a[4].i)); } [/code] Hello People. I just came across this piece of C code. I have a couple of question The third printf statement gives me the …  |
| | bad.c [CODE]#include <stdio.h> main(t,_,a) char * a; { return! 0<t? t<3? main(-79,-13,a+ main(-87,1-_, main(-86, 0, a+1 ) +a)): 1, t<_? main(t+1, _, a ) :3, main ( -94, -27+t, a ) &&t == 2 ?_ <13 ? main ( 2, _+1, "%s %d %d\n" ) :9:16: t<0? t<-72? main( _, … |
| | Well hello! I'm having problem with reading data from notepad.. So here is what I'm trying to do. etc.. I have notepad file "Doc" and in it there are few things: Level= 5 Cash= 100 And what I want from my program to do is to read Level and Cash … |
| | [CODE] #include<stdio.h> void reverse(char s[], int i); main() { int i,c; char s[1000]; for(i=0;(c=getchar())!='\n';i++) { s[i]=c; c=getchar(); } void reverse(s,i); [B] //getting error in this line[/B] return 0; } void reverse(char input[], int n) { int i; for(i=n;i>=0;--i) { printf("%c", input[i]); } } [/CODE] i am writing a program to … |
| | I need help on getting started with a simple program. I made the mistake of taking too long between classes and it has slipped my mind. Design and implement an abstract data type for a matrix of integers. Include a function that will multiply two matrices. Write a small driver … |
| | I wrote an Ansi C# code that finds the smallest number in a several unknown function calls. You can see the code, it is very clear. just need help with how to make the program to not ignore always the first number in the list of each argument list... and … |
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| | The idea for this came from another thread in the C++ forum that wanted to duplicate the _getdelim() function that is supported by GNU compilers g++. I made one major change in that this version does not allocate new memory every time it is called, which is grossly inefficient. Instead, … |
 | Hello Daniweb, I'm trying to create a very simple shell for practicing purposes, but i'm a little bit puzzeled about the usage of execve, the function i use to execute a file. The code fragment underneath shows my usage: [CODE="C"] childPID = vfork(); if (childPID == 0) { execve(input.process, input.parameters, … |
| | hi is there any way by which we can write a program that displays its own source code???????:?::-/ |
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| | So I have this C code which is supposed to check if words from a input.txt are in a dictionary.txt document that I have created. Words in both texts are separeted by comas ej. dog,house,car@ and end with the "@" char. So far I have adjusted the code and it … |
| | I am getting all sorts of incorrect type warnings when I compile the following code: [CODE]// hw1.c // Josh Soileau // 1/19/10 // Program: Asks / stores info on a bank // #include<stdio.h> int main(){ char name[25] = "blank", rating[25] = "blank", state[25] = "blank"; int lobbyists=0, prevemploys=0, number=0; double … |
| | I am very very blurry about when to use pointers or not. I am writing a function (given below), and trying to pass in two variables, statenumber and state. I have them being passed in as chars, and not char *s. I get error messages both ways. I dont know … |
| | Hi! please tell what is the function intead of getdelim to work as getdelim in windows. because it is supported for windows envirnmnt na.. |
| | My question is Y DLL? i know that it saves memory and many process can use 1 DLL file at a time blah blah blah...... but is there any task which can not b achieved without using DLL files?? Please reply in details. |
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