19,876 Topics
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| | Hi There. I am trying to use libCurl to copy the contents of a webpage into a string in C. This is what I have so far: [CODE]void Cmd_translate_f (char *message) { CURL *curl; CURLcode res; curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, va("http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=%s!&langpair=en|fr"),message); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); res = curl_easy_perform(curl); … |
| | Can someone help me to make my function getbase2 to work? It needs to return a string value. [CODE]#include<stdio.h> char GetBase2(int iBase, int iNumber); int main() { int i; int number; printf("Enter number: "); scanf("%i", & number); printf("Enter base: "); scanf("%i", & i); printF("Conversion: %s\n",GetBase2(i,number)); } // Base 11 upwards …  |
| | 1. What is the difference between the system and exec family of functions? 2. I want to collect the output of the call from the system functions say. Say I execute this system("date"); Now say I don't want it to display the output rather it give the output as an … |
 | hello guys, the output of the program should be like this: [ICODE] With how many numbers do you love to work with? 3 Enter no 1: 23.4 Enter no 2: 15.54 Enter no3: 55.48 In ascending order the numbers are: 15.54 23.40 55.48 [/ICODE] I've written this program: [CODE] #include … |
| | #include<stdio.h> void squeez(char s[],char z[]); int main() { char s[100] = "Hey wassup !!!!!!"; char z[100] = "Wow cool!!!!!"; squeez(s,z); return(0); } void squeez(char s[] , char z[]) { int j,dummy = 0,i=0; char x[100]; for(j = 0 ; s[j] != '\0';j++)/* the starting loop */ { while(z[i] != '\0') … |
| | If say I have only the binary of a another source file (no original source is available), then how to create this with my own program. Like say I have a source file containing some function print_hello() Now I compile it and get the binary lib.o Now another program test_lib.c … |
| | [CODE] #include <iostream> #include <fstream> // I/O #include <iomanip> // For setw() using namespace std; ofstream outputfile("output.txt"); // Output file const int MAX_FILE_NAME = 35; const double INTEREST_RATE1 = 0.010; const double INTEREST_RATE2 = 0.010; const double LEVEL_ONE_BALANCE = 1000.00; const double MINIMUM_PAYMENT = 10.00; const double MINIMUM_PAYMENT_PERCENT = 0.10; … |
| | Hi. I am also having a standard deviation problem. When I try to calculate the sandard deviation of the numbers below with the suggested algorithm, I run into square root of a negative number. The algorithm does work for some data sets, but neither this one or 8 others. Does … |
| | Here is the source code I came up with: #include <stdio.h> #define SPACE ' ' int main(void) { char c, prev; int space, newline; long other; space = 0; newline = 0; other = 0L; printf("Enter text to be analyzed (# to terminate):\n"); __fpurge(stdin); /* clears buffer */ while((c = …  |
| | number of iterations in the following loop [CODE]main() { int x=5, y=10, z=9 for (;x<=5;) {y++;z--; x=x+1/2; if(z==0) z=y;}}[/CODE] |
| | hi all, i need help... ok, about the 2nd statement... [CODE] unsigned char buffer[BUFSIZ]; ... buffer[i] ^= argv[3][j++]; [/CODE] ok buffer contains characters from a file... so im a little confused about what that statement does... both the "^=" and the argv part... can anyone explain? thanks in advance... |
| | Hi. I have a bit of a problem with this code: [CODE] #include <stdio.h> #include <conio.h> #include <stdlib.h> main () { FILE *data; char let; int prior, ctr; data = fopen("huffman_table.txt", "r"); while (fscanf(data, "%c%d\n",&let, &prior)!='\0') { printf("\nLetter: %c Priority: %d", let, prior); } fclose(data); getche(); } [/CODE] The huffman_table.txt … |
| | Hello guys, this is my first time in these forums, so I apologize for my bad English. Well, here's the problem: I need to get the frequency of integer numbers that are stored in a file, their range is from 0 to 100, their amount is unknown and depends on … |
| | I really need some help implementing counters. I have to count the suits and faces drawn from the deck but for some reason all outputs is junk numbers. Am I missing something? I what it to come out something like this: Say a player is dealt: Ace of Hearts Ten … |
| | Hi people, my first post here, hope its a good one. I am trying to develop a program which will simulate a very simple name server, using the client-server frame. My problem appears after the server receives the data (in form of a string) from the client and tries to … |
| | I'm teaching myself C, and wrote this string reverse function. I cannot figure out why it is crashing... [code=c]#include <stdio.h> void ReverseString(char *inStr, int length); void ReverseString(char *inStr, int length) { char temp; int j=length; int i=0; while( i != j) { temp = *(inStr+i); *(inStr+i) = *(inStr+j); *(inStr+j) = … |
| | Hello, I am currently trying to create a server/client file transfer system in which the server sends the client .mp3 files. The file transfers fine but when I go to play the file, it is all scratchy and skips and I think it has something to do with the bytes … |
| | it is not complete.........u may need to do some modifications Regards, Bhanu[code]#include<stdio.h> #include<pthread.h> #include<signal.h> struct lift { int status; int movement; }l[8]; struct floorno { int curfloor; int destfloor; }f[8]; int i; void main() { int ch; int j; for (j=0;j<8;j++) { l[j].status=0; l[j].movement=0; } pthread_t lift[8]; j=0; while(1) { … |
| | Hi I am trying to malloc align each location of an array to 128 bits. I am using the method malloc_align in linux to align arrays and so on. But in this case I want to align each position of an array to 128 bits for(i=0;i<size;i++){ //N=7 2^N=128 array[i]=malloc_align(sizeof(double),7) ; … |
| | hi, i i recently installed dev c++ 4.9.9.2 ....the first hello world program i wrote gave me some insane messages when i compiled & the exe files which gets created...my antivirus detects them as trojan flies & deletes them....i tired & re -installed dev again but it didnt help...please help …  |
 | I've just learned how to use vectors. I'm thinking about, what is the best way to create a vector, IF you do not know its initial size. Here are some of my options. 1.) This is the simplest I think, but is there any memory issue about this technique? [CODE] …  |
| | Hi,am newbie to c programming.can u explain the above c program which reads a file more than its capcity.. i couldn understand more than this.. Thanks,Yasokrish.[code]#include <stdlib.h> #include <stdio.h> #include <string.h> int bof(FILE *badfile) { char buffer[12]; fread(buffer, sizeof(char), 40, badfile); return 1; } int main(int argc, char **argv) { … |
| | Good evening, I have been working with derived classes and what could seem like an easy problem has had me look into it for hours. [U]My error message:[/U] Square.h(14) : error C2512: 'Rectangle' : no appropriate default constructor available Everything works well if I don't use my derived class "Square.h" … |
 | I need to write some contents in the text file (notepad), with some specified font, and size .is it possible in C, kindly let me know. |
| | I have problems in decrypting the text using AES in C. the code is belwo. [CODE]#include <stdlib.h> #include <openssl/evp.h> #include <string.h> int main(){ //declaring the variables char source[6]="Shahab"; char target[6]; char output[6]; char mykey[EVP_MAX_KEY_LENGTH]="hardtobreak"; char iv[EVP_MAX_IV_LENGTH] = "an_iv"; int in_len, out_len=0; int check; EVP_CIPHER_CTX ctx; in_len=strlen(source); printf("This is the text … |
| | Hey, guys, to begin with, I'm a complete newbie to C and I'm writing a Knight Tour program. The idea of my program is to check every possible way (it is necessary for the assignment), so I start with x + 1 & y + 2 and so on. If … |
 | Hi, all. Just been asked to help design a motion rig for a flight sim for a charitable museum in the UK. I have built robotic and control systems for a few years now mainly with PLC's some python and PICs. they are running Microsoft FS2004, and there is a … |
| | Hi Good Guys, I encounter another interesting problem due to my lack of C# knowledge. Please Help me. I am trying to use DATAREADER to fill TEXTBOX controls on the FORM and it's not working because this coding generate error message: [COLOR="Red"] sqlDR = sqlCmd.ExecuteReader(); <---- Error [/COLOR] Error message: … |
 | Hello using conditional operators I want to make a program that ask user to input three values and print the maximum among those three values. i have done for two values but dont know the logic for three values. [CODE] int main(void) { int a,b,c,d; printf ("first value"); scanf ("%d",&a); … |
| | Hi, here is the thing, I'm trying to make my university grading table on C++, when i fill in the grades it should tell me what i have accumulate. the thing is that when i insert the text grades it shows a zero when i click the buttom. the math … |
| | How can i convert this pr0gram in conditi0nal operat0rs...? I don't kn0w h0w to use more than tw0 conditi0ns in c0nditi0nal 0perat0rs. We've learned to use two conditional operators conditions s0 far, for example, [iCODE] (a>b)? a:b ; [/iCODE] but don't kn0w how t0 apply it for 3 c0nditions ? … |
| | program to calculate number of spaces in the string |
| | Hi all Could someone please explain this program to me, especially lines 25 and 30. I understand that line 30 is a for loop and I understand how it works. However, I am unclear why it is minusing 3 from n and is n the variable passed from line 14? … |
| | The prototype for setsockopt is: [CODE]int setsockopt(int socket, int level, int option_name, const void *option_value, socklen_t option_len);[/CODE] Are the following all correct ? Which are not ? [CODE]int buffsize = 50000; setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&buffsize, sizeof(buffsize));[/CODE] [CODE]int buffsize = 50000; setsockopt(s, SOL_SOCKET, SO_RCVBUF, (void *)&buffsize, sizeof(buffsize));[/CODE] [CODE]char *buffsize = … |
| | Hi, which is fastest coding algorithm? I need to cycle to encode a lot of data. Now, using RC4. Maybe a faster version. I do not need high security. |
| | Hi Good Guys, [B][I]I am learning how to use C#Net2008 to develop Window Application. I was a VB.NET2008 developer. I need your help, Please Help me. [/I][/B]I am encountering 2 problem trying to fill LISTBOX with [COLOR="Red"]DATASET[/COLOR] and [COLOR="red"]CATCH [/COLOR]to display error message. In the LISTBOX dropdown list instead of … |
| | For example i have an array like: a[20]={1,5,7,8,4,3,12,15,15,15,11,...} lets say that the max Value of this array is 15. i want to write : "The max value of array a is 15 and it is located at 8th,9th and 10th element in array. " Is it possible to write a …  |
| | Cant figure out whats wrong with code. This is code should "write a program to compute the interest due, total amount due, and the minimum payment for a revolving credit account. The program accepts account balance as input from a file, then adds on the interest to get the total … |
| | i know the general answer to using [ICODE]goto[/ICODE] is always "No!". I understand why, especially when teaching basics to new programmers, because it can lead to very bad practices and horrible spaghetti code. but ... when i write certain hardware drivers, i have to immediately cease executing a function if … |
| | I am doing some AES encryption using C. But the errors ocurred. The code is following by the error displayed. 1 Code [CODE]#include <stdlib.h> #include <openssl/evp.h> #include <string.h> int main(){ //declaring the variables char source[6]="Shahab"; char target[6]; char mykey[EVP_MAX_KEY_LENGTH]="hardtobreak"; char iv[EVP_MAX_IV_LENGTH] = "an_iv"; int in_len, out_len=0; int check; EVP_CIPHER_CTX ctx; … |
| | Thanks for any help. Most of this works, but I get a compiler error on lines 60, 84, and 105, where it says [CODE] current = currentStore->link [/CODE] The error reads "assignment from incompatible pointer type" It runs, but in the printStores function when i gets incremented on line 81 … |
| | hi how do I put words into a specified location of a 2d array using scanf? string movies[100][6]={}; in main i need at least 100 rows and 5 columns i want the user to enter the movie id, name year, type and availability it will be stored in a 2d … |
| | hey guys where can i get some homework especially on writing C programs |
| | I'm trying to write code for finding the number of same number in array. For example, in [1, 2, 3, 3, 4], the number of same number is 2. In [1, 2, 1, 3, 1], the number of same number is 3. How can I implement this? Please, help me. |
| | I am making a linked list template. a can search a string input and determine if it is an int. i can declare a node of type int or string. when i try to add to my list, my string node cannot point to an int node and vice versa. … |
| | [CODE]#include<stdio.h> #include<string.h> #define count 2000000 void add(char word[],char meaning[]) { FILE *fp; fp = fopen("words.txt","a"); fprintf(fp,"%s = %s\n",word,meaning); } void processing(void) { int i = 0,delay; printf("Processing....\n\n"); for(delay=0;delay<count;delay++) ; printf("\n"); } void getwords(void) { FILE *fp; fp = fopen("words.txt","r"); if(fp!=NULL) { printf("\n/**************************** DICITIONARY **********************************/\n\n\n"); char words; while((words = fgetc(fp)) != … |
| | Hey so I'm trying to get one of my c variables to be a bash variable. Is there a way that I can do this? |
| | I want to know what is const type in C and what is its uses etc. i dont know anything about this term used in C so please give detailed description... |
 | hello everyone I am teaching myself c++ and I was wondering if anyone could give me a site that has some c++ exercises particularly on 2d arrays and string manipulation. thank you. |
| | Hi all, I'm trying to write the Hufmann code to encode a given file & give me the compression ratio. but when I run this programme, I'm getting segmentation fault. Can you please help me with correcting it ? [CODE] /*************************/ /*************************/ // HUFMANN.C /*************************/ /*************************/ #include<stdio.h> #include<stdlib.h> #include<input.h> #define … |
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