I am trying to practice different concepts in C++ programming. Following is the program which compile successfully but gives seg fault at runtime.
#include <iostream>
#include <string.h>
using namespace std;
class A {
char *name;
int i,j;
const double k;
static float l;
int &m;
[Code] ....
how to use strcpy on a 2D array. The names of the students are suppose to go along with the correct score(descending order).
Student's name are:
Jack 83
Pete 100
Shawn 75
Tim 40
Turns out according to their score:
Pete 100
Jack 83
Shawn 75
Tim 40
Code:
char students[20][50];
char name[20];
temp = 0;
for(i = 0; i < count; i++){
for(j = i + 1; j < count; j++){
if(averageScore[j] > averageScore[i]){
temp = averageScore[i];
[Code]....
I am attempting to assign "randomChoice" as the array index of the "listOfWords" array then copy "listOfWords[randomChoice] to "selectedWord". I am not sure if it is that I do not fully understand the use of strcopy() or something wrong with my arrays.
This is my error:
Code:
hangman.cc: In function ‘void SelectWord(char (*)[80], int, char*):
hangman.cc:84: error: invalid conversion from 'char' to 'const char*' And my code:
Code: #include <iostream>#include <fstream>
#include <cstdlib>
#include <cassert>
#include <cstring>
[code].....
How to use strtok and strcpy in a file?
View 1 Replies View RelatedI am trying to implement own strcpy function, but no output is being printed.
#include<stdio.h>
#include<string.h>
void strcpy_own(char dest[], char src[], int len);
int main() {
char src[15]="jeevan", dest[15];
[Code] ....
This for loop replaces the stars ******** in an array that contains a word to be guessed with the correct letter (c) that the user inputs if the word contains that letter.
Problem: After every guess the same hidden string of stars ******* is displayed instead of ex: ***W**** (assuming W was entered by the user)
How can I update the old ******** string in the Stars array with the new string that includes the correct letters chosen, so after every correct guess at a letter in the word a new string is displayed including the correct letters chosen?
I'm pretty sure I have to use strcpy but not sure how to implement it using a loop.
Code:
for(i = 0; i < strlen(unscrambledWord); i++) {
if(unscrambledWord [i] == c) {
Stars[i] = c;
} }
identify the reason why I am getting a seg fault run error? I hate to bother but I've been trying for several days now to fix the same function.
class adjacencyList {
public:
explicit adjacencyList(int size);
void buildGraph(Edge inEdge);
void print();
[code].....
I have a c source file:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <regex.h>
typedef struct
[Code] .....
But the problem is i get a seg fault at the read function.
I've received a segmentation fault in this part of code:
Code:
for (; str[i] != ' ' || str[i] != ' '; i++) {
result[result_pos] = str[i];
result_pos++;
}
which, should mean:
Code: If str[i] is not equal to NULL character nor ' '; then, keep printing the chars within the word to variable result.
To understand what the function does, here's the whole code:
static char result[999];
/* char *split_word(const char *str, long n);
* Splits a string word-by-word. Where N is the word number. */
char *split_word(const char *str, long n) {
[Code]....
I'm trying to accomplish an easier way round to split string by word than using "strtok_r()". It might sound like "re-inventing the wheel", but... i will try to make it neat later.
The code looks okay, why would it segfault?
I am working on a distributed application in C. My program gives segmentation fault and aborts execution. But, when I try to run it through gdb, it keeps on running although without giving a useful output. I realize that I do not put much information in my query. But, what general causes could generate this behaviour. I am interested to find the cause of segmentation fault.
View 8 Replies View RelatedI am currently working on a program and Originally I was to create a bash program to extra information from youtube and create a table of users, views, titles, duration, etc. (I sent each to a txt file)..Then I was to create a C program to use the extracted information. In this case Users and read in the conents of user.txt and construct a linked list to hold the information. Then print from the Linked list.I managed to do that,
Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define LINE_LENGTH 100
void build_a_lst(), print_a_line(), print_lst();
void insert_at_end();
}
[code]...
What I have to do now is start reading in The other files and construct a table. And radix sort it by views. But to get to the radix sort part I get stuck on reading in all the files correctly and having the linked list hold them. I keep getting seg faults when I change my code.
I can't understand why my program keeps on getting "Segmentation Fault". The last time I checked (in UBUNTU) it was already working, now I'm testing it in Windows and I keep on getting "Segmentation Fault".
Code:
#include <stdio.h>
#include <string.h>
int main(){
char string[1500];
char word[100];
}
[code]....
Writing a program to search a file and print out the occurrences of each letter in the alphabet.
Code:
#include <stdio.h>
char input[500];
int input_c[26];
int i;
char count=0;
}
[code]....
I am using scientific linux. In the directory user/project/Build, after I ran 'make' to compile and link all the cpp files,I had no problems. But then, when I went to directory user/run/run.sh, which runs the project binary in user/project/Build/bin/project, I get a segmentation fault error. In the directory user/run, I enter 'gdb' in the command prompt and get the message "*** No targets specified and no makefile found. Stop." What am I supposed to do to detect the segmentation fault?
View 2 Replies View RelatedI can't work out why I get a Segmentation Fault with my C++ program.
Here is the code:
#include <iostream>
#include <string>
#include <stdexcept>
[Code].....
GameMaster.h
#includes ...
class GameMaster
{
[Code].....
I get the segmentation fault whenever it tries to insert the first player.. however whenever i do this :
void MakeSquad(char type, string name, int coordX, int coordY, char dir, int squad)
{
GameSpace::MapSquadType MapOfSquads;
MapOfSquads.insert(make_pair(name , Squad(squad)); // Squad( int ) just converts the int squad number to the Enum.
}
I do not get any errors or segmentation faults..
#include<stdio.h>
#include<stdlib.h>
#include<sys/time.h>
#include<time.h>
#include<math.h>
typedefstruct points{
float axis[2];
[Code] .....
if you need it here is the header file:
#ifndef INTSET_H
#define INTSET_H
class Node {
int key;
Node *left;
Node *right;
Node *parent;
[code].....
Code:
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define FILEPATH "./input.txt"
#define FILEPATH2 "./copy.txt"
[Code] ....
The problem is probably the fact that I'm using the variable s in the wrong way, but as I'm very bad at C and C++, at least so far anyway, I've no clue what's wrong. Is it my size that I passed in the marked method?
Also, how do I tell it, later, once this starts to work, to pass the file name of the file it'll copy to as the first param and the file it reads from to the pipe as the second param?
I'm supposed to be reading from a file, and as I was given some code, but it's probably in C and not C++, even if it is, I'm still not that great at C++ either, but anyway, I'm to have the program read from the file and write to the pipe and have the child read from the pipe and write to the output file.
FileCopy copy.txt input.txt
The point of this code is to get 15 names and then hash them. After one name is entered I get a segmentation Fault and the program crashes.
Code:
//driver file
#include <iostream>
#include <vector>
#include <string>
using namespace std;
[Code] ....
I have this piece of code that causes segmentation fault:
Code: .... check argv[2] exists ....
std::string* op_file;
...
std::cout << "argv[2] is: " << argv[2] << std::endl;
op_file = new std::string(argv[2]);
...
The result I am getting is:
Code: argv[2] is: somefile.txt
Segmentation fault (core dumped)
I have written a small program for a class to convert decimal to binary and the program itself works, however, I am storing the binary bits in a stack that is in a header file (which I have used successfully before). It appears to push the bits to the stack just fine, however, when I use the printStack function I get a segmentation fault.
Here is the stack.h header file:
Code:
#include <stdlib.h>
#include <stdio.h>
struct stackNode {
int data;
struct stackNode *nextPtr;
[Code].....
And here is the main program that does the conversion:
Code:
#include <stdio.h>
#include "stack.h"
int binary (int x);
int main() {
int choice = 0;
printf("
[Code].....
One other thing of note, whenever I try to modify the printStack function, that function then seems to not work at all.
Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
/* h(a)=abcab,h(b)=acabcb,h(c)=acbcacb */
void h_i(int i, char *w, char *a, char *b, char *c)
[Code] .....
Above program increases string like this example.
Let say h(0)=01 and h(1)=10 and let say our first string is w=0 h(w)=01, h^2(w)=0110 h^3(w)=01101001..etc.
We have used h map, which is given in the program comment statement. Same thing, program is doing for three letters. These three letters we have passed as argument in h_i function. e.g. h_i(2,w,"a","d","g") function will apply the 3 letter map h(definition is given in commented form in program) 2 times on string w.
In program w=a; and three letters are a, d and g. /* h(a)=abcab,h(b)=acabcb,h(c)=acbcacb */ here b=d and c=g.
Above program gives core dump at free(w2) free(w1). if we remove these free statements then it gives correct answer. But, we want to free w1 and w2 in the above code. How can we make free both w1 and w2 strings?
I want to know what was wrong with my code when I submitted. It's a Traveling Salesperson Problem, and the code is complete for the most part. I just can't seem to find what's causing the segmentation fault even after attempting to debug with gdb. Something is supposed to be wrong with line 76, but I don't see how my arrays are messing up. I've looked through this code countless times, and I know I'm just missing something small. I just don't want to end up making whatever mistake I made on this again in the future.
Code:
#include <stdio.h>
#include <stdlib.h>
#define SIZE 20
[Code]....
I am having trouble running the following code. I am getting a message segmentation fault (core dumped)
Code:
#include<stdio.h>
#include<ctype.h>
#include<time.h>
main() {
int iuser;
int irand;
srand(time(NULL));
[Code] .....
Despite seeing the correct data in gdb when I
Code:
p *(DownloadFileChunkResponse.DownloadFileChunkResult)->__ptr@100
The following C code gives me a SEG FAULT
Code:
calloc(NewMediaChunk, ChunkSize);
memcpy((void *)NewMediaChunk,
*(DownloadFileChunkResponse.DownloadFileChunkResult)->__ptr, ChunkSize);
How I got this wrong. BTW The data I am attempting to memcpy is the frontend of an MP4 file containing a number of NULLS.
Code: 00 00 00 30ftypmp42 00 00 00 00mp42mp41 00 00 dfree
BTW ChunkSize is 64000