19,876 Topics
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| | So 2 questions. 1) MPI_Init. I'm trying a python -> c -> cluster project. So I have no problem with the python -> c, but the problem comes with the c-> cluster. I'm making a python wrapper (I believe this is the correct term) around a premade c driver for … |
| | For Input 4 15.01 15 3 3.01 The value of 'avg' is becoming 9.00. I don't understand why this should be 9.01. Please help. [CODE] #include<stdio.h> #include<math.h> double round(double x) { return floor(x * pow(10.0,2.0) + 0.5)/pow(10.0,2.0); } int main() { //freopen("10137.txt","r",stdin); //freopen("out1.txt","w",stdout); long i,n; double sum,avg,sum1,a[1005]; while(scanf("%ld",&n) == 1 …  |
| | Hello, I google and search through about the 2 dimension array and I still not really understand how to do it.. for example: I got a file input called namelist.txt with following thing John Jason Leonard Kelly Kate Ash and I got the following code: #include <stdio.h> int main () … |
| | Greetings All, I was wondering about how a build process goes on in Vc++. I want to know that is there any intermediate assembly file generated while building a source file as what happens with gcc. If the answer is no ,then why gcc build process has this ones step …  |
| | Ok, so this is confusing me alot, right now I have a structure as such: [CODE]struct f_c_8 { union { float f; unsigned char c[8]; }; };[/CODE] now I declare a variable of that type [CODE]f_c_8 Time;[/CODE] However, The following prints correct number [CODE] fprintf (output_file_pointer,"\t\tTime: %f\n",event_data->Time); [/CODE] And the …  |
| | Hi, Look I'm new to C# and I have a working knowledge of VB .Net. I would like to learn C# but I'm having a problem. It's probably a basic problem but, for a console program how to I check what someone has typed in so that the console can … |
| | I am making a program that has a bunch of embedded if statements. I need random number that are between 0 and 1. In order to get really "random" numbers, I set up the program to get the seed from the cpu time. Then, to get the number between 0 … |
| | I have an array of floats: float net_pay[5] . Each element is a decimal number ie. 999.99, 35.42, 318.34 etc . What I would like to do is to scan the decimal portion, in first case it would be 99 to a variable cents. I know how to do it … |
| | Can anyone help me to program standard deviation? Here is the instructions for this program: Write a program that takes as input five integers and outputs the mean and standard deviation of the numbers. If the numbers are val1, val2, val3, val4 and val5, the mean = (val1 + val2 … |
| | i need help I need to display Example 23.4 and display 23 and .4 how do i do this? so i need to convert a decimal into fraction like this [url]http://www.cimt.plymouth.ac.uk/projects/mepres/book7/bk7i17/bk7_17i1.htm[/url] i need to display 4 and 0.276 |
| | I need help to sort this numbers, but the problem is it won't like i want it to be with the decimals. I tried changing the int to double but then the program will not run. Here is the code, please provide feedback. [code=cplusplus]#include<iostream> using namespace std; // function prototypes … |
| | I am trying to make a dialog box that can open, edit and save .txt files. I referred my codes in this [URL="http://www.winprog.org/tutorial/dialogs.html"]tutorial[/URL]. How am I going to modify the code so that instead of a "save as" function, it will directly "save" the file that it opened/edited. Thanks in … |
| | Ok, so i've made a bootloader in assembly but I think its very hard to write the operating system (the kernel) in assembly so I wonder if it is possible to write it in C#? The question is: Can you write a C# console application and convert it to .bin …  |
 | Does anyone here have any tips on using inb and outb for interacting with hardware on a Linux system? iopl(2) and inb(0x61) don't seem to work very nicely... Infact, inb(0x61) gives me a segfault. PS: My reliance on this forum is starting to become embarrassing :P |
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| | I am extracting information from SQL and writing reports. This [I]should[/I] (I hate that word) be easy... but : All is fine as long as the formatted text fits on one page. However, if the report becomes more involved (more data in SQL) more than one page is required. I'm … |
| | I need help to write this program. Create a data file that contains 15 integers, some positive and some negative. You may create the file in Notepad or any other text editor software. Save the file to the same folder your program will be in. Write a program that reads … |
| | This is a just simplified case because my C file is too big to post it here: [CODE=C] int main(int argc, char **argv) { GtkWidget *window, *vbox, *toolbar, *locationentry; GtkToolItem *locationbar; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); vbox = gtk_vbox_new(FALSE, 0); toolbar = gtk_toolbar_new(); locationentry = gtk_entry_new(); locationbar = gtk_tool_item_new(); gtk_container_add(GTK_CONTAINER(locationbar), … |
| | im about to make a program, that changes the desktop background at morning, day and night... right now i uses a bat file, but it pops up all the time.. and that does not look nice.. i want it to be done through the c++ program (need the help before … |
| | [code=c] #include<stdio.h> #include<conio.h> typedef struct { int rno; char name[10]; float marks; }stu; stu stu3; void getf(stu * stutmp); void show(stu * stutmp); void main() { clrscr(); getf(&stu3); show(&stu3); getch(); } void getf(stu *stutmp) { scanf(" %d",&stutmp->rno); printf("%d\n",stutmp->rno); scanf(" %s",stutmp->name); printf("%s\n",stutmp->name); scanf(" %f",&stutmp->marks); printf("%f\n",stutmp->marks); getch(); } void show(stu * stutmp) … |
| | need help 1. Which of the following options is a correct C++ instruction to calculate the number of containers filled with milk that can be sold? 1. nrContainers = totalLitres - litresLeftOver; 2. nrContainers /= 5; 3. nrContainers = totalLitres / 5; 4. nrContainers = totalLitres % 5; 5. nrContainers … |
| | I am getting this exception when I run my code in a C# Web Server Application, but if I copy the same code to a C# console application, it works fine. [code] System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. [/code] And help would be … |
| | Greetings, Is there any way may be some tools to view and explore contents of .obj files (in a formatted or unformatted way) or an executable. Can we do it using gcc? Please guide. Cheers!!  |
| | [CODE] #include <iostream> #include <algorithm> #include <conio.h> #include <cmath> #include <iomanip> using namespace std; int main() { int terminals[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}; int count,row,col,i; int limitcomp[20]; int coordinates[2][20]; double smallest = 0.0; double current = 0.0; double x, y; int network = 1; double chunk, total; do { cout<<"Enter number of computers: "; … |
| | Hi everyone, So I am writing this program that is supposed to do the following: Create a program that accepts a string from the user (not from the command line) and displays: 1. The string using upper-case letters, e.g. all lower-case letters are converted to upper-case letters 2. The string …  |
| | Hi, I am having a problem trying to get a callback function to work within a class. Its from the DXUT Direct X source code example. I'm basicly trying to get a callback to call a function within a class. I'm stuck, been reading around looking at all these pointers … |
| | Hey guys. I was just following lazyfoos' SDL tutorial when i got stuck on lesson 08. Everytime i try to compile and run the source code the program closes immediately and a window pops up that says "An access violation(segmentation fault) raised in your program.". :S The compile log: Compiler: …  |
| | Hi, I have SQL Server on a server. I need an applet, to appear within other peoples web sites that has read and update access to my database on my server. I would like it to be written in C# as the rest of the application is C# and I … |
| | our task is to determine how the computers should be connected into such a chain to minimize the total amount of cable needed. there are 20 terminals each has a corresponding coordinate(x,y). the user will just choose which terminal he will put his pc's. 1. you wil ask the user … |
| | Hi, Im Kiran. Can any one help me with the C# code for denying access to the local drives?? when anyone try to access a drive ( thru cmd or double clicking the drive directly) it shud nt b allowed.. for that.. So hw can we do that programattically..??? Plz …  |
| | Hello, Could anyone assist me in starting out with pointers. I know that pointers direct to the memory location where a value is stored, but I am having some issues with understanding the concept with arrays. Could you suggest a simple startup code, where a pointer points to a memory … |
| | Hi, Need help to write the below mentioned program. Create an employee struct with following fields EMP_NAME EMP_ID DOJ (Date of joining) Read in the values from a file and store them in the above structure. Print the employee details if an EMP_ID is given. Regards, Shaju |
| | hello, i am trying to store some values in an array dynamically. doing this as i dont want to over allocate memory to my array. so the code goes as follows:: [code] #include<stdio.h> #include<stdlib.h> int *p; main() { int i; for(i=1;i<6;i++) { p= (int *)malloc(sizeof(int)); *p++ = i*i; } printf("\n … |
| | Hi, I am looking for a C++ library for 3D data visualisation. The main features that I'm looking for are 1. Capability to handle large data sets(MB's to few GBs) 2. Interactive 3D visualisation 3. Slicing through the data cube 4. Real time visualisation from buffer without having to save … |
| | I have an xml file that looks like this for example: <money> <bank id="1"> <name>Checking Account</name> <description>John Doe account</description> </bank> <bank id="2"> <name>Savings Account</name> <description>Bob Smith account</description> </bank> <bank > ..... </bank> </money> I need to parse through, and get the attribute value of <bank>, and the node value of … |
| | I write a small program like following: 1, firstly create a process waiting for keyboard input commands(via getchar()). 2, secondly create a thread in the process waiting on a message queue. each time after the thread receive a message, it can handle the message but cannot print the log message(via … |
| | This is a catalogue of some experiments on just two aspects of undefined behaviour. This was inspired by yet another long bout of explanation in a recent thread, so I thought it was time to dust off a bunch of compilers, and compare. This is the test code. [code] #include … |
| | this is the code #include<stdio.h> void main() { int i; printf("%d, %d",++i,i++); } and following is the output 8429558, 8429556 |
| | I have found Recycler folder on mr c drive...is it any error?.... |
 | Hello, i can not quite figure out how to write a function to take numbers from an array and sort so it displays even numbers first and then odd numbers. the output should look like this: [QUOTE]Original: 9 8 7 6 5 4 3 2 1 Reversed: 1 2 3 … |
| | I'm a .net programmer so forgive me if this is a stupid question, but here goes. I'm working with a vendor to interface our system with theirs. We are sending text data via modem. The protocol specifications they have given us require a checksum value to be appended to the … |
| | After going through lots of stuff about declaration and definition,in a nutshell I understand that the difference is in the memory allocation. In definition yes and in declaration no memory is allocated. Fine ,Is there any process that shows that yes [code] int a; //which is a definition [/code] allocates … |
| | Hi Everyone, I am having some trouble with the code I am writing. I am supposed to find the sum all ASCII codes in the string, omitting the newline character at the end of the user input. Here are the directions I am given: Create a program that accepts a …  |
| | Hi guys....i have a problem and I hope you can explain me where am I wrong... I am doing some kind of Breadth First Search (BFS) ("some kind of" because this is my first program to use this algorithm) I have an array of size 4^9 (262144 for those of … |
 | Hi, I am new to the forum. I am in the learning process and I will stick around until I learn everything from you. I try to create count down starting at 15 seconds. But when I compile, "clock identifier not found." I am !ondering the same thing, too. Perhaps … |
 | Hi There.... # include <iostream> using namespace std; int one (int x, int y); double two (int x, double a); int main () { int num, x, y; double dec, a, first; cout<<"please enter two integers numbers: "; cin>>x>>y; cout<<"please enter a double number: "; cin>>a; num = one (x, … |
| | Hi, I already asked but haven't had an answer. What I am trying to do is to write a program which will read the data from the file into BST with the ability to search by surname (surname is the key). After sleepless nights I have managed to do something, … |
| | When i was runnning the graphucs c program in turbo c the program was terminated. I gives an error message as 16-bit MS DOS subsystem The NTVDM CPU has encountered an illegal instruction. CS:d000 IP:03e2 OP:ff ff eb 05 ea Please provide me the solution I also tried using dosbox.. … |
| | Hi, This is a basic question that's why i am confused. When I do printf("%d",sizeof(long double)) in Linux(i am using a vmware) Ans:12 bytes in msvc 2008 Ans:8 bytes My underlying arch for both implementation is intel IA32. What is the reason if the arch is same.If the fundamental data … |
| | Hi, I've just started using Netbeans 6.5.1, and I was wondering if you can run a single C file independently of the other C files in the project. This works for java. For example, you can run test1.java and test2.java independently in the same Java project. But it doesn't seem … |
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