15,552 Topics
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| | Hi, I am trying to make a program which reads 6 integers , insert into a file numbers1.txt then copy numbers1.txt content to numbers2.txt and finally print numbers2. The problem I have is that when I am trying to copy the file to another the system crashes. My code is …  |
| | Is there a reliable method to extract the quantized DCT coefficients of a jpeg image? I can see that there is the jpeglib for manipulation of jpegs but I am wondering if someone has already used it and does the job I want to do. To extract the quantized DCT … |
| | Greetings, I've got a working flex/bison parser that I would like to run from an exe file. However, I can't find the knowledge to achieve that. Do I need to create a C file, with an exec function to call the files? If so, what files do I call in … |
| | Hi all, I am new in C programming, currently learning about linked list. I know that there is a lot of examples about linked list, but I decided to write my own code, to make me more understand. I managed to build a linked list, insert a new node after … |
| | hi can someone give this a quick look over and tell me where im going wrong [CODE]#include<stdio.h> #include<stdlib.h> #include<string.h> #include<ctype.h> void main() { struct Rainfall{ char city[20]; int month; int rainfall; }; Rainfall Rainfallarray[18]; int count=0; FILE * readfile; readfile=fopen("CityRain.txt","r"); if(readfile==NULL) { printf("CityRain.txt failed to open."); exit(1); } printf("CityRain.txt Opened\n"); … |
| | HI, I am looking for faster input and output method for the C other than just normal scanf and printf modules. Please elaborate by simple example. thanks :)  |
| | i have written code to move a dot from on end of the lcd screen to the other end. [CODE] /*move dot across the creen with pixel increments of 10*/ for(x=10;x<120;x+=20) { Glcd_Dot(x,y,0); Glcd_Dot(x,y,1); Glcd_Fill(0); delay_ms(100); } [/CODE] i have seen examples in C, but this is on a 128x64 … |
| | i want to make rot13 encryption this program convert ascii code from a caracter, and work only with uppercase character (65-90) please help me [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> void rot13(const char *input); int main(void) { char *input; printf("Enter string (max. 255 characters) : "); gets(input); printf("\nConvert result %s … |
| | Your program will have a 3x3 array. The user will input the sum of each row and each column. Then the user will input 3 values and store them anywhere, or any location or index, temporarily in the array. Your program will supply the remaining six (6) values and determine …  |
| | so I am in the process of creating a lc-3 compiler that is written in C and I am stuck on how to convert the BR command into C language, the assignment asks that i get a file and then spit it out in zeros and ones , but with …  |
| | Hi Say I want to write a header file as an exercise. It will contain a bunch of functions and some constants. Q1. I noticed that the standard header files only contain the function prototypes. a> Where are the actual functions? b> How do I write a header file such … |
| | [CODE]#include <stdio.h> void getInput(); void calculate(int num1, int num2, int num3, float num4); void printTable(int num1, int num2, int num3, float num4,int calc1, int calc2, int calc3, int calc4, double calc5, double calc6, float calc7, float calc8); int main (void) { int num1, num2, num3; float num4; int calc1, calc2, … |
| | Hello, I'm attempting to learn C through the K&R book and am having some trouble with Exercise 1-13 at the moment. I'm just attempting to do a simple horizontal graph and can't figure out why this isn't working correctly. It seems to be ignoring my first "if" statement and just … |
| | I want to get some direction which will help me solve insertion sort problem |
| | [CODE]#include"stdio.h" #include"conio.h" #include"alloc.h" struct node { int age; char name[25]; struct node * next; }; void add_end(struct node **q); void display(struct node *); void main() { struct node *p; p=NULL; add_end(&p); //display(p); getch(); return; } add_end(struct node **q) { struct node *temp,*r; temp=*q; if(*q==NULL) { temp=(struct node *)malloc(sizeof(struct node)); printf("\nEnter … |
| | I have the following code. It's a memcmp implementation for the Renesas R5F Embedded Chip family and I'm trying to test it. [code] #include <stdio.h> #include <time.h> #include <stdlib.h> #include <math.h> #include <stdbool.h> #include <stdlib.h> #include <assert.h> typedef char SInt8; typedef unsigned char UInt8; SInt8 one_net_memcmp(const void *vp1, const void … |
| | [code] #include <stdio.h> #if 1 //! Set Pin string const char* const ONCLI_SET_PIN_CMD_STR = "set pin"; #endif const char* const SINGLE_APP_STRINGS[] = { ONCLI_SET_PIN_CMD_STR }; int main() { printf("%s\n", SINGLE_APP_STRINGS[0]); getchar(); // pause return 0; } [/code] Line 12 Error message... [code=text] 12|error: initializer element is not constant 12|error: (near … |
| | hello ! i have a program id like to code , and it uses from 3 upto 15 members of a structure , id like to ask , [COLOR="red"][I]1,[/I][/COLOR] is there a way to not define all members of a structure at the start but add members as needed ? … |
| | Hello Everybody. I'm with a classic problem in C preprocessor concatenation. This is the situation: [CODE] #define BAUDRATE(VAL) (B ## VAL) //... const uint32_t BAUDRATE_VAL[] = {1200, 2400, 9600}; //... br = BAUDRATE(BAUDRATE_VAL[i]); //... [/CODE] This code, result in the error: BBAUDRATE_VAL undeclared I need that the result of concatenation … |
| | im trying out using malloc in array of characters by reading each word from that text file and putting it in a array so the array size is exact my problem is when i run the program it makes segmentation fault im not sure where the problem is and if … |
 | Hello im makin a program in C tht will query my database when i use the following code i get an error "segmentation fault" [code] //retreive configuration items from the mysql database mysql_query(conn, "SELECT callcost FROM imds.testset Where callcost BeTWEEN 900 and 1000;"); results = mysql_store_result(conn);[/code] even when i use …  |
 | Hello there, I recently decide to learn and code Windows Services, After I learned the bare basic I thought I would make a program that logs the users program usage every 60 seconds I have coded the same thing without putting it in a service but apparently Services work differently … |
 | Hi ,programmers! Please tell me why it's possible to use such condition - [CODE][U]if (!fork ( ))[/U] return 1;[/CODE] as I know the fork() returns pid_t-type but at the same time "if" needs boolean.. big thanks in advance) |
| | Hi, I was wondering what libraries there are out there to do some simple sound generation. For example sine waves, square waves etc.. I'm on Linux, so no Microsoft stuff please. |
| | In the below snippet,Rewind() wraps up the file but still the no of records exceed the MAX value set. if(no_of_msg_records >= MAX) { rewind(fp_msg); no_of_msg_records=0; } ie the no_of_msg_records in the file exceeds MAX value. |
| | Ok heres my problem the code is working fine but i cant read extended ascii characters i got a tip that the problem is that extended ascii characters are 16 bits not like the original 8bits per character i dont know where to start can you gets give me tips … |
| | [CODE]#include<stdio.h> #define UN_IN -1 #define COL 10001 #define ROW 5000 int main() { int r,c; long int a[ROW][COL]; for (r=0;r<ROW;r++) for(c=0;c<COL;c++) { a[r][c]=UN_IN; // b[r][c]=UN_IN; } printf("%d %d", a[34][56],a[12][67]); getch(); return 0; } [/CODE] I was solving a problem which required large input. Am using a two dimension array but … |
| | Hi, I am new in C, trying to create a simple C file, that assign a value for a struct member with the type of string. I can't figure out why it said error : string.c:20: error: expected expression before ‘{’ token, but I don't find any syntax error.. [CODE] … |
| | I''ve got a struct like this: struct Node { int n; Node *left; Node *right; } I build up a binary tree from this struct. Now, how can i save the binary tree onto the hard disk, and how can i rebuild it from the hard disk ? |
| | [CODE]#include<stdio.h> #include<conio.h> #include<stdlib.h> struct a{ char *c; int b; }t; int main() { scanf("%s %d",t.c,&t.b); printf("%s",t.c); getch(); return 0 ; }[/CODE] I guess there is some problem in receiving input (more precisely in t.c part). Further assistance will be appreciated. |
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