[c] Forum Topics

hi guys, i'm new in c++ programming in this forum too, seen many helpful threads so far, but i just can't get over this one, something wrong with my return value , it says so "total" is undeclared identifier (line 46), but when i declare it in main function as …

Is there a way to split a string every 30 characters and store them in smaller strings without looking for a token?

Hello everyone, I'm new here. I was working on a homework problem for a basic intro to C class and I'm getting a syntax error for an if statement and I have no idea why it's popping up. [code] #include <stdio.h> // Function Declarations int Sum (int x); float Average …

I need to scan a crossword king of thing like this: [CODE]a b c o d e f g h i j k l m l n o p q r s t r z a l q w s x c d e r f v e b g …

/*i know how to convert but i dont know how, if its a larger no. ex. thousands??? because it has no restriction in nos.,,what can i use?*/

I'm a IT student I hope I will finish my dergree soon. My day time job is auto mechanic I can fix most cars out there. I love anything that has to do with computer and IT. I'm on my second programming class right now and I love all about …

can we save the objects , we draw using C, to a file,in the same way we used to save text to a file?Plz help me with an example, of how to save such drawings to a file and load it later.?THANKS.....

The Programming languages started with the low level language( 1's and zero's , so no conversion is needed. Assembly language is used mnemonics ( ADD,INC,DEC) so needs conversions as the machine cannot understand it directly. there comes the Assembler. Now the question is how the Assember was implemented, i mean …

Hello, There seems to be a multitude of different unit testing frameworks for C and I'm having difficulty in choosing which one to use. (I have no experience with C development at all) Is [URL="http://cunit.sourceforge.net/"]CUnit[/URL] generally the well known and widely used framework as NUnit is for .net and JUnit …

My prob' is that when I type 'Amanda' when the program asks for my name, it returns Hi. I want it to return Howdy when I input 'Amanda', and hello for all other strings. This is my program: [CODE]#include <stdio.h> int main() { int nothing; char namn[20]; printf("What's your name?\n"); …

Basic, I'm trying to read in a file that has lines of data, where each set is on a new line, and each variable is separated by whitespace, save for the name, which can have multiple white spaces. Here's basically my code, the parts that matter. [code] #include <stdio.h> #include …

can anyone help me by telling how to save a diagram that ive drawn in C to a file?

I have a project that I am working on. This is basically an extension of that. There is this weird error (Seg fault) when I run this code. What makes this error weird is that I print the value stored in the pointer and in the next line I pass …

Hello there, I have a set of variables that need to be overwritten onto a certain [U]row[/U] on an multidimensional array (char array[100][80]; ) of [U]strings[/U]. the variables are [U]integers[/U] and they need to be in the form [I]00:00:00,000 --> 00:00:00,000[/I] I don't know how overwrite the existing row and …

Hi, guys. I've been reading your forum for some time. Now I need a little help again. I am trying to read a bitmap file using BITMAPFILEHEADER, BITMAPINFOHEADER and RGBQUAD in windows.h - I need RGB values or only one of them. All the info in header structures is OK. …

I made an Electronic Dictionary for a college project and it's around 85-90% done. The two final issues I'm having is to figure out how to get a count on each individual word ( there are over 1000 words ), keep track of each of them, and display them ( …

Hi all, I'm helping my girl out with her hw, (/me not knowing C at all, but someone has to help, right?) I am supposed to read user input, and then try to execute a given command plus the arguments in every given $PATH. I managed it all, but I …

I need to use an if/else statement like the following in another program of mine, but for some reason there is a problem with it. The statement seems to work for all values, except when I enter the N_MAX value of 0.1. It should be considered valid, but it's not. …

hi i need a litle help.....i must write a program that search for a string in a text file and return the line in the text file were string was found...string its an argv....i wrote this code but it returns the whole text file when i search for something [CODE=c] …

how can i declare something like this? int main(int argc, char *argv[]){ char *users[] = {}; char *names[] = {}; openPasswd(users, names); return 0; } void openPasswd(char &users[] = {}, char &names[] = {}){ } as you see i want to populate the 2 char arrays from the function back …

i want to know the whole concept of file

I know how to use the file_pointer=fopen("location","type") to open and check if a file exists. But I'm not sure how I would use this command or a similar one to check if a folder exists? What command do I have to use to check if a folder exists in the …

How to create Floating Components for a Software ? I would like to create something like a Shooting Object and a Target, which is in itself a Desktop App. What kind of API should I use to create Objects which are Discrete parts of the same App unlike Windows... Thank …

[code] #include<stdio.h> int m,i,c; main() { clrscr(); for(m=1; m<=10; m++) { for(i=1; i<=10; i++) { c=m*i; printf ("%d\t",c); } printf ("\n"); } getch(); } [/code]

N00B here. I need to reuse a function's return in other functions. The problem is that the function's return changes every time it is called. How to achieve this? [CODE]int FUNCTION1(void) { // do stuff return FUNCTIONRESULT; // return to be reused in other functions } int FUNCTION2(void) // <- …

Write a multi-module C program to manage an auto-parts database for a manufactory. help translate the bash script into c [code=script] #! /bin/sh #Project 2 CSC 3320 #echo menu test program stop=0 # reset loop termination flag. while test $stop -eq 0 # loop until done. do cat << ENDOFMENU …

Any one has an idea how to develop Header of GPRS tunneling protocol using C language or even has interest in something like that I am a professional C/C++ programmers living in jordan

So I've already got one function that takes a list of va_args, ..., and then formats it, like such [code=c] string form_string(string format, ...) { va_list args; va_start(args, format); ostringstream output(""); for (unsigned int i = 0; i < format.length(); i++) { if (format[i] == '%' && format[i+1] != '%' …

i have to write C code for linux commands wich , apropos ,whereis(for a linux mini shell)..... if someone can tell me how to start...or help me with some links... which - shows the full path of (shell) commands --i need that comand to show me only the path of …

can anyone help me doing my simple assignment,please. I feel fed up and got confused so far

bobsced0$ gcc -g -o prog ss.c bobsced0$ ./prog File size is:906984 Segmentation fault bobsced0$ gdb prog GNU gdb 6.8 Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO …

hi, how do I create an array of pointers to a struct using malloc? using malloc like this- [CODE=c] abc * a = (* abc)malloc(sizeof(abc)*10); [/CODE] I get an array of struct objects. I can access member elements using the "." operator. eg a[2].xxxx what I want is an array …

Hey guys, how would i convert the code in option ascending and descendingGPA to where it sorts all students in ascending order by lastname and all students in descending order by gpa. thanks! [code] #include <iomanip> #include <iostream> #include <fstream> #include <cstring> using namespace std; struct StudentRecord { char lastName …

hi..pls help me with this ...when i run this c program i get in result segmentation fault message (i run in ubuntu terminal): [CODE=c]#include<stdio.h> #include<utmp.h> int main() { char *s,*c; struct utmp *u; int i; c=getlogin(); setutent(); u=getutent(); while(u!=NULL) { if(u->ut_type==7 && strcmp(u->ut_user,c)==0) { printf("%-12s",u->ut_user); printf("%-9s",u->ut_line); s=ctime(&u->ut_time); for(i=4;i<16;i++) printf("%c",s[i]); printf("(%s",u->ut_host); …

Hi, I'm studying the basis of C, C++ and Assembly languages at my university (I have two exams about these subjects, for now) ... and I have a problem ^^. I wrote a program in C (not so optimized, this isn't our present goal for my professors) that recieves in …

1. command line program for match two string and also allow the character • * -- any number of character • ? – Single Character Ex.: I/p:- This is a string Th?s is *g O/p Both string are Same pls help me to solve this program in c

I need to generate and reuse a 5 digit random number every time my program is executed. But the following generates random numbers every time the function is called. [CODE]#include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <string.h> #include <time.h> int RANDOM(void) { int RANDOMNUMBER = 0; srand((unsigned int)time(NULL)); …

Hello guys! I have an assignment in my data structure class and I want to ask following thing: I have txt file which is unordered (not sorted) say like this: red apple blue sky white car handsome boy hello world My program should read file into linked list and sort …

My file contains: [CODE] Hook,Mark,In, , ,Tire,Matt,Out,01/01/2001,Mike [/CODE] My structure: [CODE] struct part { char name [NAME_LEN+1]; char owner [OWNER_LEN+1]; char status [STATUS_LEN+1]; char date [DATE_LEN+1]; char renter [RENTER_LEN+1]; } parts [MAX_PARTS], temp [1]; [/CODE] And the code: [CODE] FILE *fp; fp=fopen("parts.csv","r"); printf("%d", fp); //Added this for debugging char buf[100]; …

I've started on an assignment and just can't get it right PLEASE help! The assignment is :Write a program that will do the following: 1.) Continuously prompt the user for words and store the words in a linked list. Do not use an array or in any way pre-allocate any …

Hi, This is the code fragment: [CODE] #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> int main() { int* bugs_bunny; bugs_bunny = (int*)malloc(3*sizeof(int)); memset(bugs_bunny, 5, 3*sizeof(int)); printf("bugs_bunny[0] %d\n",bugs_bunny[0]); bugs_bunny[0] = 17; printf("bugs_bunny[0] %d\n",bugs_bunny[0]); return (1); }[/CODE] The outcome is: [CODE]bugs_bunny[0] 84215045 bugs_bunny[0] 17 [/CODE] Why is the value printed for …

Hello, I am having a problem. The task I have been given is to implement a queue using a linked list. One of the functions of the program is it accept input from the user and write this to a file. The program, thus far, accepts the information, but prints …

This program was written and tested in unix/linux environment (in EMacs editor )with a GCC compiler.

I am trying to take a user's input and assign it to a certain part of a structure. This code is in my book so I assume it's correct: [code] scanf("%d", &part_number); inventory[num_parts].number = part_number; [/code] I need to do the same thing but with a string instead of a …

hi, this is the code for switch:[CODE] include <stdio.h> main() { int i=2; switch(i) { case 1; printf("i am in case 1\n"); break; case 2; printf("i am in case 2\n"); break; case 3; printf("i am in case 3\n"); break; default; printf("i am in default\n"); } }[/CODE] and this is the …

Dear colleagues I am currently working on designing a scheduler using Borland C. I am struck with the concept of interrupts. I am trying clock tick interrupt for task switching. In all materials they say you will continue to your regular job until the interrupt occurs. I don't think it …

Hey, I have a program that it supposed to read two columns of data and then perform a calculation on them. The problem is reading the data in from the file. I have a function to count the lines, this works correctly. It returns it's value into a variable called …

In the following c code, the num_elements is gobal. But if i make it as local and return , it gives strange value just before return it becomes '0' ...can anybody explain why ? [code] int num_elements =0; //generates a psuedo-random integer between min and max int randint(int min, int …

I've got a large array of coordinates (a struct containing x and y, among other things) and for each pair of coordinates, I'm trying to find another pair that's closest to it from that array. [code] int i, j, d = 0, cd = 0, closest; for(i=0;i<size;i++){ closest = 0; …

Hey everyone I am trying to read a hexadecimal registry value from a registry key, I am opening the key and then calling RegQueryEx, but I can't seem to get it right. Can someone post an example. Thanks.