[c] Forum Topics

Write a function to remove all trailing blanks from the right end of a string. Assume the prototype is void trimRight(char a[]); Write a function to remove all leading blanks from the left end of a string. Assume the prototype is void trimLeft(char a[]); Write a function to add extra …

Difficulty in programming.

hey how to compare longest decimal number using == operator??

I'm trying to emulate bash/cmd type program. I have written programs like cat, ls, grep (simple one) and kept it under \bin\ directory. This program will take user input and run programs present in \bin\ accordingly. I'm using `_spawnv ()` as the argument list is going to be variable. When …

Is this correct? #include <stdio.h> #incluede <string.h> void getname(char name[][50],int num) int main() { void getname(char name[][50]) { for(int i=0;i<numofname;++) scanf("%[^\n]",name[i]); }

Hello folks, This nitty problem is haunting me today. Here is the code I have written, but am not getting the expected output. This is a program for printing matrix in spiral order. #include<stdio.h> #include<stdlib.h> int main() { int rows,cols,i,j; int tr=0,rc,br,lc=0; /* tr = top row index. rc = …

Ok the admin said to me not to post in C++ if my problem is in C language. Ok here's my problem with my program now. #1 If I put this in a array what should I change? #2 In my looping I needed to press double enter to enter …

// Shortest function to convert an ascii hex digit to binary // (assumes a valid hex digit 0-9, A-F, a-f) char asciihex2bin(char ascii) { if (ascii > 0x40) ascii += 9; return (ascii & 0x0F); }

IS IT POSSIBLE TO PASS AN ARRAY INTO A FUNCTION AND THEN CALCULATE THE PRIME NUMBERS OUT OF THE LIST?

#include<stdio.h> #include<math.h> #include<conio.h> #include<string.h> #include<stdlib.h> int main() { int i, n, diff; int x=rand() % 100; int bMoveHigher = 0; int bGuessedCorrectly = 0; printf("Welcome to Guess a Number Game\n"); for(i=1; i<=6; i++) { printf("ATTEMPT %d: Enter your number: ", i); scanf("%d", &n); if(n==x) { printf("Congrats! You have guessed the …

#include <stdio.h> #include <math.h> #include <conio.h> #include <process.h> #include <string.h> void main() { int i, n, diff; int x = rand() % 100; int bMoveHigher = 0; int bGuessedCorrectly = 0; printf("Welcome to Guess a Word Program\n"); for (i = 1; i <= 5; i++) { printf("ATTEMPT %d: Enter the …

Hello please i have a problem with my compiler. When ever i try compiling a program it gives me warning saying" Source code not compiled" I use Devc++ compiler. Do i change the compiler or what do i do? This is the program i typed in it

I am implementing Priority QUE as a doubly linked list. My structs: typedef int kintyr; typedef struct qElem { struct qElem *prv; kintyr *dat; int *priority; }qElem; typedef struct que { qElem *fr,*bk; int cnt; }que; And this is my functions to create empty PQ, and to insert elements: que …

Hello :D I would like this to be explain. What is meaning of this following codes and why are they in there? I really don't understand. void Binary2Decimal() total=0 "%16s" len=strlen(bin2); value=bin2[i]-'0'; total=(total<<1|value); void Octal2Decimal() for(i=0;i<len;++i) value=buffer[i] - '0'; if (value < 0 && value > 7) void Hexa2Decimal() digit=toupper(buffer[i]); …

The question: Modify the first Loop so that the values in the array data are initialized to multiples of 2 as follows: 2,4,6,....,20. here is the original codes that has been set in the question paper: #include <stdio.h> #define numitems 10 int main(int argc, char* argv[]) { int data[numitems]; int …

Can smb exaplin me how to instal sdl2.0 in codeblocks.. i tried different tutorial..they didn't help.. Ty a lot

here is the original codes that has been set in the question paper: #include <stdio.h> #define numitems 10 int main(int argc, char* argv[]) { int data[numitems]; int i; int *ptr; for(ptr = data; ptr < &data[numitems]; ptr++) *ptr = 0; for (i=0;i<numitems;i++) printf("data[%d]=%d\n", i, data[i]); return 0; } HERE ARE …

here is the original codes that has been set in the question paper: #include <stdio.h> #define numitems 10 int main(int argc, char* argv[]) { int data[numitems]; int i; int *ptr; for(ptr = data; ptr < &data[numitems]; ptr++) *ptr = 0; for (i=0;i<numitems;i++) printf("data[%d]=%d\n", i, data[i]); return 0; } HERE ARE …

i have two different programs that compare float and double variales and gives output , i shown that below : 1. #include<stdio.h> main() { int r; float f=22.5; double d=22.5; r=(f==d); printf("r=%d",r); } **Output:- r=1** 2. #include<stdio.h> main() { int r; float f=22.7; double d=22.7; r=(f==d); printf("r=%d",r); } **Output:- r=0** …

i want code of Sorting techniques like insertion sort , merge sort , bubble sort , quick sort. i want their output in gui or in any animation form in any language like c , c# or java. can any one help me plz ?Any one sorting technique is ok.

Hi guys, I am try to open a socket to connect a email account on C language, but i don't know how to use this protocol into a socket, in some links i found that i will need to use SSL protocol, but i don't understood. Any can explain how …

I recently started coding in Java and have been trying to use the native methods to link code from other languages like C and C++. My code for the file is: [code=java] public class NativeDemo { int i; public static void main(String args[]) { NativeDemo ob = new NativeDemo(); ob.i …

I am trying this: int test(int **a){ return **a; } int main(){ int p[2]={1,2}; int *a=&p[0]; int **d=&a[0]; //for (int i=0;i<2;i++) // printf("\na=%d\n",a[i]); //ok this works for (int i=0;i<2;i++) printf("\n%d \n",test(&a[i])); return 0; } I want this ` printf("\n%d \n",test(&a[i]));` to work. I want to use a pointer. Thanks

Trying to implement a history function in C, I know my array size for the history is 100 and i have a max of 9 arguments. I just wanted a little help or advice on where to start! I also know that i need my history initialized before i start …

I have been asked to build a group of functions that carry out set theory operations such as intersection and union. The functions below that I must complete are set_intersectWith, set_unionWith, set_minusWith, set_powerset, where: > set_intersectWith = A ∩ B > set_unionWith = A ∪ B > set_minusWith = complement …

My programm wont let me input all the data I need. And when I try to display them it won't even use the data that I could input. Please help me and sorry for my bad English it is not my native language, that's why all the data is in …

i have to add two matrices and i am having this error: "error array subscript is not an integer" line 24 here are my codes: #include <stdio.h> void inputarray(int arg[][3], int rows); void printarray (int arg[][3], int rows); void inputarray2(int arg[][3], int rows); void printarray2(int arg[][3], int rows); int main …

Hi everyone, Hope you are all doing very well. I have run into a new problem with this project I am working on... Currently, I get data in the following format across my UART communication: g_Uart1RxData[0] = "1" g_Uart1RxData[1] = "2" g_Uart1RxData[2] = "3" g_Uart1RxData[3] = "4" g_Uart1RxData[4] = "5" …

Hi everyone my Binary2Decimal is okay now because it can now hold 16 digits. But how come my Octal2Decimal and Hexa2Decimal can't hold 16 digits to convert to decimal it can only up to 5 digits. Can anyone correct this problem? #include<conio.h> #include<stdio.h> #include<string.h> #include<ctype.h> char base; char key; void …

So I am working on an old project that uses libnet, actually it is a book example, and I cannot find a version 1.1 or 1.0 of libnet. I am going to somehow have to track the depreciation of certain functions and I have never done something like this before. …

I'm new to the gdb debugger and was wondering how to i step through my code in gdb.

Hi there, I am having a problem of passing arrays to functions, here is my code: void zeroMatrix(float **arr); void main() { float e[2][2]; zeroMatrix(e); } void zeroMatrix(float** arr) { int i,j; for (i=0;i<2;i++) { for(j=0;j<2;j++) { *( *(arr +i)+j) =0; } } } The problem is I want to …

would like some ideas of how to acutally create my own cd function from scratch using C programming.I'm building a shell program in C.

Hi, i have this project where the size, 2d array of size n is scanned from a file; asks for the vertex pairs from the command prompt until the user decides to stop inputting them. There is something wrong with my code because it skips the scanning of int variables …

Hello, I was wondering if someone could help me in this case. I need the program to open a txt file. But the User shall inform the location where the file resides. Can be by text. Example: "C: \ documents \ test.txt". To open files I know just the fopen.

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hello i'm trying to make this into a switch statment but i'm having trouble. Any help would be great!!! this is for a shell commands in C. if(strcmp(command->comm[0], "exit") ==0) //exit { printf("EXITING.....\n"); break; } else if(strcmp(command->comm[0],"history")==0) //history { int i=1; for(;i<hisSize;i++) printf(" %s ",history[i]); } //history end else if(strcmp(command->comm[0],"echo")==0) …

I was having a little trouble with parsing my command upon input, I'm new to C so any help would be greatful! Here is what i have so far i'm trying to make a simple unix shell char*token; while(1){ //prints users prompt printf("\n%s@myshell:%s>", username,curDirect); //gets string from command line fgets(buffer, …

Hi All, I am new to c programming. I have mulptiple c files which uses the client.h Currently I am using my header file in each and every place where my c code is placed. Can I put it at one particular location and use it as #include<client.h> in my …

Hi, I need some help with starting a program. Kind of lost on how to begin it, any guide to start it would be helpful. Here is the link of the program: http://home.earthlink.net/~craie/122/labs/strfind.html I need to do all the different levels for this program. Thanks

Dear all, I am learning C language. I got the following problem while running the problem. Program: [CODE]#include <stdio.h> #include <math.h> #include <stdlib.h> main() { int x; for (x = 1; x <= 250; x ++) printf("x = %d\n", x); }[/CODE] OUTOUT should be: x = 1 x = 2 …

One of the things which attracted my attention was that there are often newbies asking how to create a password program in C/C++, often they don't succeed, well here's my response, you can use it for any purpose you want, one thing you'll have to keep in mind is that …

Hello, is this for loop possible? Im trying to get each new value for for(a;a<sum;a++) sum variable. After countless tries i am stuck and don't think it's possible to change that... When sum = sum + laikai[i+1]; exists compiler CMD window is not responding and checking for solution... Help would …

In the last few days, I have noticed a very old thread ... resurrected ... about a non-standard C getline function. To all who may like a C readLine function ... a C function that reads in a dynamic C string of any length ... a function with a similar …

OK so I'm almost done with my program. How to put this in function like putting each case like void Binary2Decimal() , void Octal2Decimal() & , void Hexa2Decimal() in "TURBO C++"? Call a function like I only want to display only the Binary to Decimal case. #include<iostream.h> #include<conio.h> #include<stdio.h> char …

I have a rich text box in my winform. I want to format the text so that i can write a simple C code in it. I mean the indentation should be done accordingly (like the code tag on websites). Is it possible??

I installed the New version of dev c++ 5.6 for implement graphics programmes in c and i done all the steps like put graphic.h files,and add linkers in parameters. i done every step correctly but when i go to compile the simple graphics programme it will show the error line …

Hi all, First time poster here, I've referenced posts here on daniweb in the past and it has always been helpful, thanks! But I can't find the answer to this particular problem here on the forums. I need to write a basic string parser as part of a coding assignment …

#include <stdio.h> #include <stdlib.h> int main() { int i=1,fact=1,n; printf("enter the no of fact: "); scanf("%d",&n); factorial(n,fact,i); return 0; } int factorial(int x,int y,int z) { int r; if(x==1) { r=y*z; printf("the fact is %d",r); } else { factorial(x--,y*z,z++); } } hello iam trying recursion using factorial the complier stops …

I am trying to parse a date stored as an array of characters. I have a problem to paerse the date with a loop otherwise it works fine. char date[]="20141018"; //the date is 10/18/2014 char _mypointer=date; char year= "YYYY"; char month="MM"; char day= "DD"; year[0]=*my_pointer + 0; month[1]=*my_pointer +1; What …