19,876 Topics
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| | I am getting an error when I do this in C program: execl("/bin/cp","../data/data_.txt","../data/data.txt",0); error is as follows: ../data/data_.txt: missing destination file operand after `../data/data.txt' Try `../data/data_.txt --help' for more information. I tried this too, it didn't help. execl("/bin/cp ../data/data_.txt ../data/data.txt",0); All I am trying to do is this: cp ../data/data_.txt … |
| | i can say u r so professional if u finish it just after 1 day it contain many things and it will improve ur programming for sure the programs in Attachment file if anyone just try to start it ,,, let me know 2day plz and connect with me at … |
| | Is there any way to detect that I am no longer receiving data on a TCP connection in C#. For example, I have the following program: [code] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Net; using System.Net.Sockets; namespace SocketTest { … |
| | How to make win32 app with login? Is there some command or i need to make my function by myself?  |
 | Hi I'm wondering why you would learn C++ for use in finance when you can do so many calculations on an excel spreadsheet and use VBA. I am not an expert on either though could someone tell me why C++ is better and if not why excel and VBA is … |
| | int file file = open("./some.txt", O_RDONLY); Above line file=open giving me compile error: 'O_RDONLY' undeclared (first use in this function) What is the problem here? I am running linux and gcc 4.1. |
 | If I call the MessageBox function: [CODE]MessageBox(NULL, "Message", "Message", MB_OK);[/CODE] for example, the box will not appear. It will make the beeping sound, though. |
| | Hi , [code=C] /* Inputs a list of strings from the keyboard, sorts them */ /* in ascending or descending order, and then displays them */ /* on the screen. */ #include <stdlib.h> #include <stdio.h> #include <string.h> #define MAXLINES 25 int get_lines(char *lines[]); void sort(char *p[], int n, int sort_type); … |
| | Hi i always mix up a NULL and '\0' and 0. Can you write me when to use these things? |
| | Hello people......just wondering if i can get some help.... I need to solve the next problem: We insert a number of students "k" and a number of chairs "n".....we need to print on the screen all the possible seating arrengments.....as one space always got to exist between two students.......the formula … |
| | Okay i need some help doing a payroll system using master/transaction files in C++. I have done the pseudocode (we will use text files to simulate tapes) can anyone see any probs with my pseudocode? how would i do it in c++? [code] ======================== get payroll transaction file for $month … |
| | Hello everybody, For my university graduating's project i'm looking for a challnging C# project. It doesn't matter neither it a web, windows is or another project's type. Will any body give me such a case scenarios. Thanx Anunnaki  |
| | I have a config file which includes how many files I need to create. So my program reads the config file and will create those files. Where I am stuck is I do not know before hand how many File pointers I need. I get to know quantity of files …  |
| | When you read file in C and move to next line and so on. This seems you have to access file top to bottom sequentially without skipping lines. I need a way to read very 5th line or something similar to it. I am just concerned with data that is … |
| | I am reading a text file from an input file. The problem is that when I cout the text to the screen not all of the original text file is showing. The text file is large, but I was wondering if there was any way I could possibly display all … |
| | Hi all, I am zawpai. I would like to create the timer function in C to do some checking. Could you please show me how to write the code about it. Thanks, zawpai |
| | Well hello.. I am making an CSV (comma seporated values) loader, in which the first row are strings and all the other are integers. From what I've got when I load each indivisual string into an individual char array first few char arrays when printed are twice as big as …  |
| | Hello all, i have a little problem printing the upper symmetry of the multiplication as shown in the attachment (in C). can anyone help? |
| | [QUOTE]aptr = malloc(nrows * ncols * sizeof(int)); rowptr = malloc(nrows * sizeof(int *));[/QUOTE] What is the different with have no * inside sizeof(), eg sizeof(int), vs sizeof(int *)?  |
| | char stmt_buf[1024], buf[(1024*2)+1]; stmt_buf ="SELECT id, title FROM post LIMIT 5;"; I get an error: connect2.c: In function ‘main’: connect2.c:217: error: incompatible types in assignment |
| | I am running linux. This problem maybe implemented many times over. I am not hitting right google search term. I need a way to send email from my c program, if that program fails to excute some other part of the code. Any gurus like to shed some light on …  |
| | Hi friends, I am sita I want to know more about storage class in C language.I think you can help me for finding out the answers. First of all Can you please tell about Local and Global variables? Or What are Local and Global variables? Can you please show some … |
| | Hello , please help with a code to write in a Microsoft word file . |
| | When I execute this code ,it accepts 2 nos,prints the msg enter your choice and terminates.. [code=c] #include<stdio.h> int main() { char ch; int a,b; printf("enter 2 nos :"); scanf("%d %d",&a,&b); printf("\nenter your choice:"); ch=getchar(); printf("%c",ch); switch(ch) { case '1': printf("sum : %f",a+b); break; case '2': printf("diff : %f",a-b); break; … |
| | Its pretty rare for me to post questions here but I came across this one about qsort I can't answer. If I try to sort an array of character strings such as [icode]char array[255][20][/icode] qsort works ok as expected. But if I declare the array like this qsort fails: [icode]char*array[255][/icode] … |
| | [I]<< split from the "[URL="http://www.daniweb.com/forums/thread66649.html"]removing the null terminator at the end of string[/URL]" thread >>[/I] But, Lets say what you have stored in your buffer is the contents of your file that you've open,. How do you get all the content of that file into your string without it stopping … |
| | Hi, I want to write a program to split one file into multiple files. At any line that contains: "# Name:" i start writing to a new file. My problem is that i want to save each file with a name i extract from the same line. Example: # Name: … |
| | The following code consists of 2 functions: one called Options and the other called checkOptions. The Options function is fine. No problem, it is taken from Johnson M. Hart's book. The second function was added on to attempt to complete an exercise at the end of the chapter. Okay, the … |
| | hello i am george.i have to do 2 exercises in c/c++ and i dont know a lot of programming.the exercises are: 1) code for depth first search with adjacency list for every graph 2)code for Dijkstra algorithm with weight graph if somebody knows something(code,links,etc...) that could help me please contact …  |
| | I want to pass a float array from one function to another function I want to make use of the float array type(here container) [code=c] void funct1() { float container[4]={0.1,0.2,0.3,0.4} void funct2() ----(1) {return container;} } void funct3() { void funct2(); use container array; }void funct1() { float container[4]={0.1,0.2,0.3,0.4} void … |
| | [code=c] void main() { TRISA=0x00; TRISB=0x00; while(1) { PORTB=0x06; PORTA=0x01; delay(10); PORTB=0x5B; PORTA=0x02; delay(10); PORTB=0x4F; PORTA=0x04; delay(10); PORTB=0x66; PORTA=0x08; } } [/code] This a few program that i make in creating a scoreboard for basketball using PIC 16f84a..Is this program correct?? |
| | I have a C program I am writing and need this program to write to syslog and have the logs in a separate file for my program. Eg. My program is called "example.c", then I want to have a log file called "example.log" in /var/log. Do I define log file …  |
| | [QUOTE]The function time() retrieves the current calendar time from the system's clock. It has the following prototype: time_t time(time_t * tp); In systems in which no clock is available, the function returns -1.[/QUOTE] Part 1: I found this on the internet. I have a question about the above quote where … |
| | hi, i have the following program [CODE]see the attachment[/CODE] when i try to compile through the command line {with the scipt compile} everything works fine... when i try to use my makefile...i get tons of errors.... It is my first serious try with makefiles and i would like some assistance … |
| | I'm clueless as to how to fix the errors in this contact information manager program. please help. Thanks in advanced [code=cplusplus] #include <iostream> #include <string> #include <fstream> using namespace std; struct Date { int month, day, year; }; struct Address { string street, city, state, zipcode; }; class Person { …  |
| | Hi, I am trying to find the header file monetary.h and the function strfmon() to do some currency conversions, but Visual Studio 2005 compiler doesn't seem to support those. Does anyone know if there is an alternative function I can use ? Thanks a lot.  |
| | im trying to sort my random numbers to odd numbers and even numbers,, the last part of my code is really wrong.....(the sorting part) [code] my code: #include<time.h> int main() { int num[50]; int x,odd,even; srand(time(NULL)); for(x=0; x<50; x++) { num[x] = (rand()%60)+40; } for(x = 49; x>-1; x--) { … |
| | Can someone tell me what value would each of the line of code will have, when you go through this code: Here is the full code: server.conf: [CODE]interface=192.168.0.2; log=/var/log/example; [/CODE] example.c: [CODE=c] conf_fd=open("/etc/example/server.conf",O_RDONLY); read(conf_fd,conf,100); close(conf_fd); /* Get server IP */ buffer=strtok(conf,";"); buffer1=strtok(NULL,";"); strtok(buffer,"="); server=strtok(NULL,"="); server_ip=inet_addr(server);[/CODE] What is the value at … |
| | Hi, I need some information regarding the APIs to use, to get the drive letter, if I know the label of that drive. For eg, my hard disk has been partitioned into 3 drives, C:, D:, E:. The labels (label1, label2, label3 )for these drives have been assigned dynamically. I … |
 | i have an array which contains third level pointers : [CODE]char * arrP1 [ ] = { "father", "mother", NULL}, * arrP2 [ ] = { "sister", "brother", "grandfather", NULL }, * arrP3 [ ] = { "grandmother", NULL}, * arrP4 [ ] = { "uncle", "aunt", NULL }; char … |
| | i have to write a program that checks a palindrome to see if it is in fact a palindrome but i get this warning warning C4800: 'char *' : forcing value to bool 'true' or 'false' (performance warning) and its not quite working any help would be great thanks. [code]#include … |
| | Hello, C question here (running on Linux, though there should be no platform specific code). After reading through a few examples, and following one in a book, for linked lists i thought i would try my own small program. The problem is, I seem to be having trouble with memory, … |
| | hello i have this code int main () { char * arrP1 [ ] = { "father", "mother", NULL}, * arrP2 [ ] = { "sister", "brother", "grandfather", NULL }, * arrP3 [ ] = { "grandmother", NULL}, * arrP4 [ ] = { "uncle", "aunt", NULL }; char ** … |
| | HEY FRIENDS THIS IS MY EFFROT I'VE MADE A PROGRAM THAT'LL ADD OR SUBTRACT 2 AND THREE DIMENSIONAL MATRICES !! PLEASE SEND YOUR REVIEWS ABOUT THIS PROGRAM AND SUGGESTION ON WHAT IMPORVEMENTS CAN BE MADE IN IT !! AND ALSO I NEED TO KNOW CAN THIS PROGRAM BE MADE BY … |
| | I have a question. I have been studying C++ and it seems to be getting a tad repetitive. What I really would like to do is more with electronics but also with C++. My laptop only has USB ports. I never wanted to be a programmer but would like to … |
 | I'm trying to create a simple little program that will accept arguments of files (i.e. file1 and file2), and look for occurrences of the "match" string in the included arg files. Then I want to print out the whole line where the match is found preceded by the number of … |
| | i need to use large integers of the size 1024 to 2048 in a cryptography project using C... are there any header files available which will make my work easier if not ... how do i hanlde these integers using structures ??? By handling i mean multiplication , exponentation , … |
| | Hi all.. can any one explain me how to implement a byte array in c++. regards wijitha. |
| | im a 1st year comsci student and we are given an assignment that will display in words the number that is entered using logical operators and what we've learned so far(printf, scanf,etc.) I only have problems in displaying the numbers from 11-19 (when I input 12 is displays two twelve), … |
| | I did a quick search on the forums and there was another problem similar to the one i'm trying to solve. I'm supposed to use the first word of a sentence as a search parameter and check the rest of the string for occurences of the word. If the word … |
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