[c] Forum Topics

Hi - Spent best part of an hour writing a thread to intoduce myself yesterday evening, only to have it lost in the ether it seems! So this is a shortened version: My name is Paul. I'm from Portsmouth (GB) and employed as an electronics engineer. Likes: most sci-fi films …

Hello, I'm trying to read dictionary words from a file and store the output in a struct element of type unsigned char *. I keep getting a bunch of memory related errors and segmentation faults which Im sure are totally related to me trying to access something that's not really …

i dunno im sure this output the good result i dont understand why it got not the output that i want [code] #include <stdio.h> void Squeeze2(char *str,char *save) { int i,x; int buffer=0;//used to save stuff for( i=0 , x=0 ; str[i]!=0 && save[x]!=0 ; i++, x++ ) { if( …

hey there, i need some help in understanding pointers. this is an example from school but i cant quite figure i out. i know the basis of pointers but could someone give me some more info. [CODE] #include <stdio.h> #include <string.h> int string_len(char *s); int main() { char s[80]; strcpy(s,"Hello"); …

i m trying to code htoi function in chapter 2.3 for K&R but problem i dunno where to start should i first read all string then after that change each character to its decimal and then add them ? or any better ideas?

[code=c] #include<iostream> using namespace std; int fact (int num); int main () { cout<<"Enter a number"<<endl; int number; cin>>number; cout<<"Displaying number: "<<number<<endl; cout<<"Calculating Factorial for the number"<<endl; int fact; fact = fact(number); return 0; } int fact (int num) { if(num==1) { return num; } else { return num * …

"I am a boy\r\n" if this string is readed through using fgets in an array what will get readed

I have an array of integer of size 20 and there values range from 0-9 and i want atleast the value 0 placed in one location in the array once. how can i control rand() to be able to do that? cause there a possibility 1/10 will randomily generate 0 …

Hello., Have a question about array being set from function argument. I wrote this little program, and want to know why cant i set an array size from the function argument. Any help would be greatly appreciated. [CODE] int money(int deposit, ...){ int i, sum = 0, nextvar; // myArr[deposit]; …

write a program to find size of a file without traversing it character by character? will anybody tell me the logic hw to approach it is there any trick involved

void openfile(char *,FILE**) what does double stars indicates

hai i am new to sas.i want to do base sas certification can anyone provide me the material and what is exam code for base sas certification.

I am writing a simple program for managing the final grades of students. The program first read original data from a file called "final.txt", and create a linked list to store the imfornation in memory. The format of the orginal data is "Class_Character Seat_number Computer_grades Laboratory_grades". There is only data …

Hello Everybody, I am working on a project and i want to compose one main string out of several substrings in C. for example: I have 3 variables: Float Vx=1,66 Float Vy=1.55 Float Vz=2.3 My first step is to convert them to character arrays usin snprintf. Then i want to …

This may be be a silly question, but its baffling me. If I set up a receive interrupt, process the data and clear the flag. All works well. The problem is I need to use printf. I realize that this will of course also generate an interrupt, I handle this …

Hi, I want to pass tree as an argument to other function in C. I am able to pass the tree comfortably,but how do I access the children of the tree in the called function??? TIA Best Regards Vishal Agarwal

Hi All, I am trying to read a file line by line. If a line contains the following character ':' then that line will be parsed word by word and put in a list. I am trying to do that but the head pointer is changed when we go to …

Below is my prime generator, it works fine only thing it gives me 1 more prime than i want eg., if num=40, i need primes uptill 40 but it gives me 41 also...i want it to stop at 37. It works fine with 90. sample run ======== Enter the number:40 …

Hi, i am looking to create a standalone ordering system for a fast food business as project using java (but perhaps another language if it is easier). I want the system to be able to run without an operating system ie the program should run from booting from an USB …

could someone please point me to a link on how to convert my char* temp = new char[3]; to a char test[3]?

Could anyone please show me howi can assign a char* pointer[2] to a char temp[2]? been looking around can i cant find any examples of this

is there any function absread() if it is then whats its usage?

Hello friends, i have some doubt and hope i will get an satisfactory answer from here. 1) Can memory addresses be negative........i have initialized an array and check the address of element and found it negative...so i want to know can it be negative and if yes then how addresses …

Hi I've been think about this for a while but the answer eludes me. I know its a pretty simple program but here's the snippet: [code] int main(void){ printf("Enter the operation of your choice\n"); int a; int b; int ch; while((ch = getChoice()) != 'q'){ printf("enter a value: "); if(scanf("%d", …

the first time my program runs it gets the character from the keyboard the second time it gets a 10 and I have not pressed any keys on the keyboard [code=c] #include <stdio.h> #include <stdlib.h> void showone(); void showtwo(); void showthree(); void showfour(); void showfive(); void showsix(); int randx(); char …

Hi... I've been trying to make a program where the input is txt file, and the output will be saved in txt file. But, I keep getting error Message. My code looks like this: [code] #include <stdlib.h> #include <stdio.h> int main (){ int i,j; float H [100][100]; FILE*in; in=fopen("0.txt","rt"); FILE*out; …

hi... everyone !!!!!. i m Narendra Singh Rawat from India. I m final year Computer Engg. Student. My hobbies are playing and watching cricket and reading . I Know C,C++ and Little about java. I joined this community to learn new things and get some help for my project . …

Hello friends, I have have found lots of ways to implement a stack using different data structures. But i want to what us the best way (best means code understandability , performance) to implement a stack!! Share ur thought so i can reach to any final answer. Different ways ->1. …

Hello everyone! So, I've been given an assignment to create something of a simplified Scrabble game in C. I'll start of by mentioning that I'm aware of the vastness in similarities between C and C++, but I am more versed in C++ and so I'd consider my C to be …

Hello., I'm very green in c++, and at school we just had a first lesson on pointers to functions, and I'm going over teachers code using debugger and dont understrand why the line age = getInt(IsValidAge); executes before printf, i thought C++ compiler executes lines sequentially. Any help would be …

[code][/code] Hello everyone ! I am still a beginner, and am posting the code in which I have problems - I compiled it in VC++ 6.0 standard edition, and it gave two warnings and no errors. The warnings disappear if i use double everywhere instead of float. the warning (same …

Input a list of positive numbers, terminated by 0, into an array Numbers. Then display the array and the largest and smallest number in it.

Hi all, I just get stuck with this kind of simple problem. Such a novice i am. Could you help me guys.:$ I try to built the code and for the first procedure i should open first the file. The file which i should opened its depend on the input …

Hello: Anyone know of an easy way to cast the unsigned char in[16] in the below code to an LPCWSTR using just the CRT? I tried swprintf but it wasn't working. I've been googling this for a week and appreciate the help. [CODE]/* ****************************************************************** ** Advanced Encryption Standard implementation in …

I am trying to insert a node before another node in a doubly linked list and I have been trying to do for awhile, but I still can't get it =/. I keep getting error whenever I try to display the list after I insert in a new node. Please …

I was trying out a very simple calculator program: Here's the code: [code=c] #include <stdio.h> #include <stdlib.h> // Calculator Program // By 0xCMD int main() { double number1 = 0.0; /* First operand value a decimal number */ double number2 = 0.0; /* Second operand value a decimal number */ …

This is a newbie question regarding Bitwise Operators in C: The variable original is initialized to 0xABC. [code=c]unsigned int original = 0xABC;[/code] I know that 0xA = 10 in HEX but what does 0xABC mean? Testing it in the compiler I get the following value "2748". But how does this …

So here's the thing, im reading a binary file wich is an image. I think im reading this correctly, so i have the whole binary info i red stored in a buffer and i wanna display this in my screen like '0100010010011' is there a way for me to do …

Hi there, this is my first post here so please tell, if im doing something wrong. Ok so heres the the struct [CODE] typedef struct _CMD { char nome[100]; char arg[100]; struct _CMD *prox; }*CMD; typedef struct _sCMD { int cont; CMD inicio; CMD fim; }*sCMD;[/CODE] The function i use …

Ok...i've been getting a weird error in Gtk+. I've narrowed it down to this line: [code]gtk_menu_shell_append(GTK_MENU_SHELL(helpmenu5), about);[/code] that gives me this error: [code](packing:5236): Gtk-CRITICAL **: gtk_menu_shell_insert: assertion `GTK_IS_MENU_SHELL (menu_shell)' failed [/code] Now my program compiles, however the menu wont pop up and the terminal prints that error...does anyone know what …

Hi, I am writing a program that allows a user to enter a string of 0s, 1s, and x's. The program will then print out all of the possible combinations that a binary number can have with the string. Example: If the input is 1xx0 The output would be 1000 …

i have recently started to learn c programming. while learning i came across a problem in which we are supposed to find the product of divisor of numbers of range upto 10^6. so, plz if someone can give me any direction on this problem.

I was wondering if there's a simple way to create a wget-like program in C? If anyone could point me in the direction of a short guide/tutorial focusing on fetching web pages in C, that'd be great. Beej's guide is a bit too detailed, for me -- I just want …

Hello People. ive been in Daniweb for quite some time(1 year almost) but haven't used Daniweb to the extent i should have. Well my name is Gany , i am doing MCA from Mumbai University MCA (Masters in Computer applications) Well in a few months From now i will have …

hi i need help with my grading program i need to do something so the menu comes up and make it work property i have no idea on my switch statement and how to delete student from list please help me [code] #include <stdio.h> void main() { int ssn[1000]; int …

Hi, Is there a possibility of creating fixed length file in C and when the file is filled up with the contents to the limit of it's size then it should wrap up to include the new contents? Thanks.

If You Want Something To Do, Try This Exercise... Define a human struct that has 3 fields: char name[50]; char gender[10]; int age; Try and use typedef in your program for your struct. Write a program that reads in a text file containing names, ages and gender of cartoon characters, …

Hi all, Sorry if its a newbie post, but I'm currently trying to finish a program that sorts a binary search tree using the quicksort method. It seems like it should work, but whenever I run it, the program stops at a certain part in the program and encounters a …

[code=C] int main() { char *p = "hello all "; printf(p); } [/code] I thought the above code should ve showed a compile time error. but it din , any reason how it worked?

0AFE:02B0 00 00 00 00 00 2C 44 63-71 1F 71 1F 00 00 80 01 .....,Dcq.q..... 0AFE:02C0 01 00 07 FE FF FF 3F 00-00 00 EC ED E1 04 00 FE ......?......... 0AFE:02D0 FF FF 0F FE FF FF 2B EE-E1 04 96 9C BF 0D 00 00 …