18,490 Topics
I want find size of array by pointer in a function.example : //char array[] is a random array,i can alloc dynamic,so i can know size,i want access a random possition in array. char* pointer; void myfunc (char * array) { pointer = array; //how many elements in the array??? } …
Hi I would like to write program that calculate the sum of all integers from a minimum number up to the maximum number.by using the following formula? sum = 1/2 * number of integer * (minimum numbers + maximum number) How can I do it?
I am working on a program in Pro*C that uses fscanf to read a CSV file. This is a naive CSV file, with no commas allowed in the strings, and it is packed, with no whitespace between the fields. I read in a header record, which has some important information, …
hi I need some help in the subject of compiler.Please suggest me some links to develop a compiler using lex and yacc.The input should be a simple C or C++ program and the output should be all the 7 stages of the complier(lexical analysis,synatx analysis,sementic analysis,intermediate code generation,machine independent code …
A program that will create scrambled words by circularly rotating the middle characters of each word by 1 character. Place the scrambled words, 1 per line in an output file. Example: hamster becomes hmstear Sample input file: 4 dog pepper marker teapot Sample output file: dog pppeer mrkear tapoet
actually, i have given a task of a fb development. woek is that when ever any one allow the app, then that app will scan the posts and likes of that person. and that app will have database which will check that words (in posts and likes) with its database …
I am currently working on my assignment about a simple text editor that can open, add line and delete line and so and so... I designed an algorithm to add new line to the doc and it works for the first time but didnt work after it, I dont know …
Circuit, [Circuit Diagram](https://picasaweb.google.com/116591322380497799116/December52012#) Video: [Video](http://www.youtube.com/watch?v=qGoM_ydAtBc)
Hello I am just testing how to get the fatorial of a number by using MACRO - Here is my wrong code - #include <stdio.h> #include <conio.h> #define FAC(n) for(typeof(n) i=2; i<=n; i++){f *= i} void main() { int i=5; int j=FAC(i); printf("%d",j); getch(); } And these are error Error …
Hi, i have this piece of code, the encoding function creates a file of binary 1's and 0's but since i am getting output in a text file, the result is shown as ASCII characters which appear as garbage. can anyone please tell me what should i add in the …
so I haven't used pointers to this extent for a few years so I'm a little rusty. I'll give a quick explanation on what the code is supposed to do, but from looking at my output I am messing up pointer arithmetic somewhere along the lines. I'm pretty sure it's …
I am not able to see the desired output. Please let me know where I am missing a point. #include<stdio.h> struct node{ int data; struct node *next; }; void push_node(struct node *node, int data){ struct node *new_node = (struct node *)malloc(sizeof(struct node)); if(node!=NULL){ new_node->data = data; new_node->next = node; node …
I have a course (reverse engineering) in uni and i have a homework. I got a .obj file (which was compiled with visual studio 2008), and i have to disassemble it, figure out the control structure and call it in a little c program. I used IDA decompiler, here is …
i want solution of a c prog using functions ie to find lcm and gcd using functions in same program but to find lcm we will be using formula lcm=(a*b)/gcd; please help me out this is my code if modifiction are to be done then please send me modified code …
Hi everyone. I have written an MS-DOS based screensaver program by hooking timer and keyboard interrupt. After 10 seconds the screen is cleared and on clicking any button from the keyboard the contents of dos screen are shown. I want to know how can I make this screen to blink …
actually, I just want the idea here. I have a server, a client . client will request to display the files names in its directory(server's current directory). server will send the list. my thinking : system command will be used here. when clinet enter "-ls" then server will have system() …
I want to assign an array to a pointer variable. The way I am doing it is like this: int array[] ={1,2,3}; int **p_array = &array; (*p_array)[1] = 99; But when I run the program, it fails. Could anyone help me with the issue? Thanks in advance!
I have made a code and when I compile it I recieve the error saying "/tmp/cc9UNQMJ.o:in function bulbasaur: pokemon.c(.text+0x1074):undefined refrence to print collect2:ld returned 1 exit status" anyone have any idea what this could mean? (i will place full code after work)
how do you manually convert a multi digit ascii string into the hex equilavent of a decimal integer with out using a C library function. For instance If I have a small program asking a user to type into the keyboard a decimal number and lets say they type in …
ok, im working on an assignment implementing a circular queue (fixed size 15), shared memory, normal producer consumer problem, using three semaphores (one for the queue and one for each process). The objective is to have the producer put the characters from mytest.dat (max 150 chars) into a circular queue, …
Can anyone give a simple code to explain the statement"a funtion ca have multiple declaration but only one definition"?
Why is it compulsory and necessary to initialize static variables during compile time only?
#include <iostream> #include <cmath> #include <stdio.h> using namespace std; int main () { int n, x=0, ans; int b=0; do { x++; cout << "\nINPUT NUMBER: "; cin >> n; if(b<n) { b=n; } } while (x<=10); cout << "\n"; cout << "\nHIGHEST: " << b; system ("PAUSE"); return 0; …
Hello I am try to learn Brasenham Line Drawing Algorithm. I wrote this program in Turbo C # include <stdio.h> # include <conio.h> # include <graphics.h> void main() { int dx,dy,x,y,p,x1,y1,x2,y2; int gd,gm,errorcode; clrscr(); printf("\n\n\tEnter the co-ordinates of first point : "); scanf("%d %d",&x1,&y1); printf("\n\n\tEnter the co-ordinates of second point …
i was searching for a code to perform binary XOR addition. Exams coming up, and needed to a quick way to create and verify standard array tables. However, i didnt find anything substantial on the internet, so made my own version of it. can anyone take a look and tell …
I'm writing a C library to export SDL_Surfaces to various image formats as an exercise. Now I'm working on the GIF format and I feel I'm very close to getting it working, but I've been at this for a while with no luck. I've already re-read all the specs, wiki …
i would like to ask what exactly do need absolutely need to know......i persue 'Information Technology'-Btech.What according to u do we must know....whther be it cracking tests or job pi.The core subjects as per my interest says is OS,networking,dbms,ds,c,java. Do u think that is it?Spm is nt my liking bt …
Hello, I am using Code::Blocks, and recently any time I try to compile any program I get the errors "stray '\302' in program" and "stray '\206' in program" about every 20-30 lines. I know how to fix these (by deleting the non printing character(s) in the line in question) but …
I am undergraduate student and I have to do a final year project I wish to do something related to new technology ! not frquent idea but i do not konw in which field I have to work I've taken : c, java, web languages(HTML,PHP,Javascript,CSS) , Database systems(Oracle, MySQL), Assembly, …
I've been trying to write this program and so far this is the best I could come up with. It doesn't work though. #include<stdio.h> #include<conio.h> void main() { FILE *fp,*fp1; int i=0; char str[80],fname[]="a1.txt",fname1[]="a2.txt"; clrscr(); fp=fopen(fname,"r"); fp1=fopen(fname1,"w"); if(fp==NULL) { printf("\n Cannot Open File : %s",fname); getch(); exit(1); } printf("\n File …
Wondering if anyone has used SQLite. I'm having trouble with the basics. sqlite3_get_table function. The Apress book 'The Definitive Guide to SQLite' provides the following example. The first problem is that when declaring char *result[]; Things start to go wrong. I get an error message saying that *'the size of …
Hi guys I got a question about how to reversethe little endian. My questions is how do I do it. Say the user inputs hex 4423, how do I get it to reverse in the program to read as 2344? and help would be greatly appreciated. I need this because …
The following piece of code outputs 0.1000000000001 float a=0.1; printf("%lf",a); But if I add a 10 times as long float b=0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1; printf("lf",b); It outputs as 0.999999999999989 But if a=0.1 is stored as 0.1000000000001 then the answer should be greater than 10 due to the 1 in last column.Then why is …
Hello. I am trying to find out how to write a function to replace a string in a text file. So far i got this: find -> is a word i am looking for replace, rep -> new word, f1 -> my file. And i'm stuck with that piece of …
Why this piece of code doesnot display array contents #define TOTAL_ELEMENTS (sizeof(array) / sizeof(array[0])) int array[] = {23,34,12,17,204,99,16}; int main() { int d; for(d=-1;d <= (TOTAL_ELEMENTS-2);d++) printf("%d\n",array[d+1]); return 0; }
So my teacher gave us this file #include <stdio.h> #define MAXVALS 100 /* max number of values we can process */ int tableFill(double a[], int max); void tablePrint(double a[], int num); double tableAverage(double a[], int num); int tableMatchingElements(double a[], int num, double target); int main() { double table[MAXVALS]; /* array …
I'm trying to figure out how to set up RSS feeds for specific DaniWeb forums. How can I find out what valid forum ID numbers are? [This page](http://www.daniweb.com/rss/pull) says to set it to 0 for all forums, so what if I only want C and C++ forums?
Hi guys can you please help me with this. All I need to do is input a number and display the corresponding alphabet.For example 2 then the output should be A B.. I am working on a code but my problem is the output is displaying together with a special …
How to write a calculator program in c language using command line arguments??? The calculator only needs to perform basic functions of addition, subtraction, multiplication and division of 2 integers only.
I am making a text editor in c language and have been stucked with code of go to line number,selecting a text,copying a text,cut text and pasting a text... so please any one can help me out of this as soon as possible....i have submissions by 1st december....
I have attached a quick class model of what I am trying to achieve (Also, sorry for the mass of code but I figured I'd post everything I have thus far in case anyone saw other improvements I could make). I can give a customer an 'Account' but I want …
im trying to make my own Serialization library but I have some problems with the following. I have a package wich I serialize to a t_stream and then I need to serialize the t_stream to a char * again. This is the complete code: typedef struct{ int16_t port; int16_t priority; …
#include<stdio.h> #define ROW 5 #define COL 5 int main(){ int array[ROW][COL]; int r=0, c=0; for (r=0; r<ROW; r++){ for (c=0; c<COL; c++) array[c][r] = (c+1)-(r+1); } for (r=0; r<ROW; r++){ for (c=0; c<COL; c++) printf("%5d", array[c][r]); printf("\n"); } printf("\n\n"); system("pause"); return 0; } i need help in this code I …
Hi, I seem to be having a problem with my code below, which I would like to be able to use to return 2 values from the result of a quadratic equation operation. The eReturn function takes care of negative square root values. I'm not getting any errors back, just …
i want to print myname mynam myna myn my m i have done in numbers but i can't print in string/char my code is i want to print myname mynam myna myn my m i have done in numbers but i can't print in string/char my code is main() { …
Does the following code make p as a null pointer static int *p; since `printf("%u",p);` outputs as 0 though the syntax is `int *p=NULL or int *p=0`
Find the number of sequences in an integer array. A sequence is a list of numbers that comes in strict numerical order like [3, 4, 5, 6]. Sample Input : [1, 2, 3, 6, 8, 10, 11, 15, 16, 17] Sample Output : 3 sequences Any one can hlp please? …
**C++ Code:** #include <iostream> using namespace std; int sum(int n) { if (n <= 0) return 0; else return n + sum(n-1); } int main() { cout << "Range num? "; int num; cin >> num; cout << sum(num) << endl; return 0; } **My Pep/8 try at it:** br …
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