15,550 Topics
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| | How can one write a c password program that accepts only 3 attempts of password input |
| | ok here are the files [B]globals.h[/B] [CODE] #ifndef _globals #define _globals #define DATA( L ) ( ( L ) -> datapointer ) #define NEXT( L ) ( ( L ) -> next ) typedef enum { OK, ERROR } status ; typedef enum { FALSE = 0 , TRUE=1 } … |
| | Hello everyone, I wrote a c program in order to write 5 students records (name, ID and average) to a file. Now the difficult step is to firstly to find the highest average among students. Have anyone any clue how I can do this? Thank you  |
| | Memory allocation. Pretty simple, but I guess there might be some people here who do not know what it is... [CODE]#include<stdio.h> #include<iostream.h> int main() { int *n = new int; *n=12; printf("n's value is %d\n",*n); *n=25; printf("n's value is %d\n",*n); delete n; printf("n was deleted\n"); system("PAUSE"); return 0; } [/CODE] |
 | The problem is I use malloc in the last function(toString()). I just wanna know if there is anyway to free it? or that I dont have to? Thanks [CODE] #include<stdio.h> #include<string.h> #include<stdlib.h> #include<ctype.h> /* Function prototypes */ void process(char input); void update(char words[][51], int position); char * toString(char character); /* … |
| | for(j=0;j<3;j++) { repeat:if((int*)ch[j][l]>(int*)ch[j+1][l]) { strcpy(tmp,ch[j]); strcpy(ch[j],ch[j+1]); strcpy(ch[j+1],tmp); } else if((int*)ch[j][l]==(int*)ch[j+1][l]) { l++; } goto repeat; } for(i=0;i<3;i++) { printf("%s",ch[i]); } return 0; NOt gettin any output |
| | How do i prevent a C string input from the user from exceeding the capacity of the array? is this not possible? [code]int main() { char buffer[8]; printf("enter a string"); scanf(%s,&buffer); return 0; }[/code] |
| | Im a noob in C and I got this simple code working.. [CODE]#include <stdio.h> #include <conio.h> #include <string.h> int main () { char str1[20]="burke",str2[20]; printf("Dog's name?:"); scanf("%s",str2); if (strcasecmp(str1, str2)==0){ printf("Gratz you got it",str2); } else{ printf("Wrong Answer!!!"); } getch(); } [/CODE] My problem is what if instead of "burke" … |
| | Hi, can anybody help me with this program output. Program is based on GCC compiler standards [CODE=c]#include<stdio.h> main() { int *ptr=10,j; j=ptr+19; printf("ptr=%d\n",ptr); printf("j=%d\n",j); } [/CODE] [CODE=text]output: ptr=10 j=86[/CODE] when ptr value is 10 in statement "j=ptr+19", why the j value is 86??  |
| | I was coding snake game. The game is working normally but I have a little problem.I can't set again commands block.For example The commands are accumulating when I have pressed the buttons,frequency. And note:My language is Turkish. If you want understand variable mean, may be want use googletranslate or boubletranslate.. …  |
| | Hi, I have wrote a program to do multiple linear regression (form the matrix ) and solve the relevant matrix using Gaussian Elimination,Unfortunately it is not running and once I get it to run it is gives me the error stating det=0. Please have a look and let me know …  |
| | hi guys please help writing this shell script in C..please count2:[code] #! /bin/sh # count2 also increments and appends a value to the numbers file # but only when it can successfully create a new hard link to the numbers file count=0 while [ $count -lt 200 ] # still … |
| | Hello! I've got a little problem... I want to make a program which puts 10 random character, but the characters should NOT be digits. [CODE]#include <ctime> #include <stdio> #include <iostream> using namespace std; int main() { time_t t; time(&t); srand(t); int i,c; char ch; printf("Generating 10 random characters...\n"); for(i=1;i<=10;i++) { … |
| | when i run the program it skips the Int Tax(); function an i tried changing it to void an taking out return 0; but its still not working [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <math.h> char vehicle[5]; int car; int truck; int hrsn; //Hour the vehicle entered … |
| | Hi guys, I'm trying to do a client server socket program, where the client writes a list of numbers for the server to compute, and then finally server returns a result. I've managed to get my functions working the way I want (not in client/server) But I've problem implementing it … |
| | I need to read words from a text file, build a structure to store the word and its occurrence. From what I was told from my TA, I need to read words, determine its size (how many chars) and allocate memory for its size. Then I need to build an … |
| | Hello, i am trying to figure out what i did wrong. i am trying to add a subtraction flag to my current 32 bit adder, and i keep getting the incorrect output back. For example, if the user enters: input 32 bits: 0 0 0 0 0 0 0 0 … |
| | Can any one help me to run this program? I am trying to modify it for multiple linear regression and use Gaussian elimination to solve the matrix.I found this in a book but it is not working:(Does anyone have anything related?I am a beginner so please something not so complicated … |
| | Hi all, I have a doubt regarding finding a loop in a linked list.I searched on internet and found 2 different ways of doing the same. But my doubt is that if a linked list has a loop, then wouldn't it be a circular linked list? If yes, then the … |
| | hi every one i want to ask is there any way through which i can retrieve column number of csv file using c programming. those number which are by default set in cvs file also the row name i-e A B C.............. Z AA AB AC........... thanks in advance  |
| | I'm trying to write a simple program that takes arguments and concatenates them into a single string. It compiles fine, but when I run it, I get a segmentation fault. Here's the code: [CODE] #include <stdio.h> #include <stdlib.h> #include <string.h> main(int argc, char *argv[]) { int i; int strlen; char … |
| | Hello, I'm reading data in from a serial device and I'm having trouble parsing the data into a human readable format. The serial device sends out a 75 byte packet at a rate of 3hz. Using read() I get data from the serial port as it becomes available, and write … |
| | Question:How many main() in one C program is possible? Answer:(a)Exactly one or (b)More than one If answer is b than write easiest program having two main()s... |
| | hi.. i wanna make my own library in turbo c. For this problem i have gone through net and i found something that is stated below. plz correct me where i am missing somthing. 1- make 2 file with extention .c and .h i am also confused about that where … |
| | hi: i need to make a code for the process scheduling like round robin,first come first serve, preemptive and short job first. it should display all average waiting time for each scheduling.. and suggest what type of scheduling should be used... please help me... i need some help here... |
| | Does anyone know of any examples or tutorials for how to create a pthreads server? I have built a web server using fork() which works fine. I want to convert it to multi threading but I really cannot understand how the variables work in respect to mutexing, i don't understand … |
| | Hello DaniWeb! I'm trying to return an array of strings from a function but I'm not sure how to do so. I've done the prerequisite Googling and have found people on this discussion board recommending to return char** which, it is said, can then be converted back into 2d array … |
| | [CODE]double a,b; printf("%f",a^b);[/CODE] error occurs as shown in heading. any alternative method? |
| | Hi, what would be a easy way of taking chars from the BEGINNING of a string, and placing them in another variable, ensuring that they are removed from the original string, ideally at the same time? basically, say i have 2 strings, string1 and string2. string1 contains "helloworld" string2 is … |
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