I want to get the occurence of the symbol ';' for each line of this C program. I type the name of the file Source.c and try to count the occuring symbol, but i am getting the value for ALL of the ';' for each line.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>/* For exit() function */
int main()
{
char file_name[150];
FILE *file2 = 0;
gets(file_name);
[code]....
In my program I have a range check setup in the class I call from main, but when I run it and put in a value > or < than the min/max it just calculates anyway. Where have I made a mistake?
Heres the Main
#include "box_class.h"
#include <iostream>
using namespace std;
int main() {
double length;
double width;
double height;
double volume;
[Code] ....
This is for a 2-d array, but if i understand how to do it for a 1-d array, I can do it for a 2-d. So to keep it simpler, I will just pretend its for a 1-d array. I am working on a project where i must enter the month number of a storm and then tell the user which month had the most storms. So I have an array and the user determines the size of it by entering the number of storms. Then, using a for loop, the user enters the month number for each storm and the data is used to fill the array. This is to be used in a part of a much larger piece of code. I made a sample code below to mimic what i want to do:
Code:
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[]) {
/*Declare variables, i is a counting index used in for loop if necessary*/
[Code] ....
I believe this involves making some temporary array but where to start ....
How can a mulitline string be read line by line
ex: str = "PERIOD="week"
DAY="day"
TIME="time"";
I have program. I need programing one game.
char girl;
char computer;
cout << "Girl choose one of symbol x or o";
so girl choose x.
problem : i need random symbol genetation. so if random symbol are x, than girl start play. if random symbol ar o, than computer start game. who to do this?
Whats the symbol for divide In C++
View 10 Replies View RelatedI need to write a ANSI program to print out each command line argument on a separate line using a for-loop. also it need to print the name of the executable .so far I have
Code:
#include <stdio.h>
int main(int argc, char **argv) {
int i;
printf("")
[code]....
l need to write a program which writes out its command line arguments in reverse order one per line. The output from the program should look like this:
% a.out Two roads diverged in a yellow wood
wood
yellow
a
in
diverged
roads
Two
I am trying to read a file line by line and then do something with the informations, so my method looks like this:
Code:
void open_file(char *link) {
FILE *file = fopen(link, "r");
if (file == NULL) {
fprintf(stderr, "Could not open file.
");
exit(EXIT_FAILURE);
[Code] ....
1) The first complain of valgrind is at the line where I use fgets and its telling me (invalid write of size x), but I have allocated my line to 56000 and the read line is shorter, why is there a write size error then :S?
2) at the line where I realloc where I try to shrink the space he's telling me: Address .... is 0 bytes inside a block of size 56000, But I know i need only this space so why is there a write over space error :S??
So I'm reading a file line by line and storing it backwards into a list. So if the file has has this format...
1
2
3
4
The code should store each line in a list as such...
4, 3, 2 ,1
Instead the code will store the last variable in all nodes. So the final list will look like this...
4, 4, 4, 4
Here is my code...
struct node *head = NULL;
int i;
while(read(in, &i, sizeof(int)) != 0) {
struct node *temp = malloc(sizeof(*temp));
temp->line = &i;
temp->next = head;
head = temp;
}
I need to read lines from one file and copy them line by line into another file using dynamic memory allocation. It compiles but gives me a seg fault. Why/How?
Code:
int main(){
FILE *fp1;
FILE *fp2;
FILE *i;
fp1=fopen("file1","r");
fp2=fopen("file3","w+");
[Code] ....
There are numbers of lines connected to each other. I've extracted the line start point and end points but i am confused how to compare the end point of one line with the start point of adjoining line.
View 2 Replies View RelatedI was loaded a bmp file in my mfc window and stored rgb data in a file.My image size is 320x240.
Is possible to pick a single point (location) from that bmp image (Not the whole window)?
i like to plot a line graph using the pointed single line data using the stored file data?
here R is X Axis and G & B is Y Axis.
If i have 2D array of data means how can i plot the line graph?
Why is this correct?
Code:
char str[10];
scanf("%s",&str);
I knew that when we have strings we should not use & in scanf()...
here is the code i have so far, basically you have ti enter a price in pounds and it will convert it to euros. i have got the conversion working i am just unsure how to get the euro symbol for the out put.
#include <iostream>
#include <iomanip>
#include <cassert>
using namespace std;
int main() {
char answer;
float sumInEuros;
int numberOfPrices;
[code]....
I'm using fgets which will read a single line at a time, but unlike fgets I don't want it to return the new line char ( ) ?I want to be able to use printf to display the lines next to each other.
View 7 Replies View RelatedI have a text file (test.txt) with the following data:
01,05,25,20130728
01,06,25,20130728
01,07,25,20130728
01,08,25,20130728
01,05,25,20130728
01,05,25,20130728
01,05,45,20130728
01,05,65,20130728
01,05,85,20130728
01,05,35,20130728
01,05,25,20130728
01,05,35,20130728
I want to read this to one string called line. So far I have this code:
string line;
ifstream myfile ("/home/Test.txt");
if (myfile.is_open()) {
while (myfile.good()) {
getline (myfile, line);
for (int a = 0; a <= 335; a++) {
cout <<line.at(a);
} }
myfile.close();
}
so far its only printing the first line and then throwing an instance of 'std::out_of_range'
I need to read a text file which has various lines containing integers. I need to write those integers separately in a vector. Example, the first line of the text file contains 3 9 8 7 6 so vector[4]=3, vector[3]=9, vector[2]=8 and so on. Next read the second line 4 1 2 3 4 5 and write to another vector vector[5]=4, vector[4]=1...
I tried the code below but it will write from the second line, the whole line in one vector index.
int str; // Temp string to
cout << "Read from a file!" << endl;
ifstream fin("functions.txt"); // Open it up!
string line;
// read line count from file; assuming it's the first line
getline( fin, line );
[Code]...
Im trying to read from a file, line by line, with no specified number of values in the file. Check out my code:
int main() {
string x;
ifstream fin;
int count = 0;
char ch;
fin.open("CWC_Master.txt");
if(!fin)
[Code] .....
Now, this works great! However, its skipping some lines. And I dont know why. For example: Lets say that the input file is:
superman toy
sm2335
19.99
batman toy
bm5532
25.99
aquaman toy
am6786
26.00
Where it should output the above, instead it outputs every other one. Like:
superman toy
19.99
batman toy
25.99
aquaman toy
26.00
How can I fix my code so that it SIMPLY(i say simply because I am still a beginner coder) can read line by line?
I'm reading strings one after another and trying to split it using strtok_r. This doesnot seem to be working
I have a .gz file from which I'm reading the data into the buffer in chunks.
The below code works fine only for the first chunk on data. Later it just breaks out.
while(1) {
char buffer[SIZE];
int bytes_read = gzread (f, buffer, SIZE - 1);
[Code] .....
I can able to get the last line ten chars but i cant get if the last line is null.
here is my code
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
using namespace std;
int main(int argc, char *argv[]) {
[Code] ....
here with i have enclosed my file where i am pick my last ten chars ...
Attached Files : log.txt (4.8 KB)
I have to read the information about logic gates from a file. The file format is shown below:
Code:
gateOne = NAND(inpA, inpB)
gate2=NAND(1,2)
3 = NAND(23,25,26)
As, it can be seen from the above structure that whitespaces are not same everytime. So, to deal with this situation, i am using boost library to remove all whitespaces from the line which is being read and then try to find the name of gate and its input. My code is given below which is able to correctly find the gate names and its first input...but my code is not able to find the second, third and so on input names.
Code:
//C
#include <stdio.h>
//C++
#include <iostream>
#include <sstream>
#include <fstream>
#include <string>
#include <cstring>
#include <boost/algorithm/string/erase.hpp>
[Code] ....
I am completely baffled by bin file read/write and positioning. Here I wish to search a chemical name info by symbol. Here is my struct
struct chemicalElement {
int atomicNumber;
char name[118];
char symbol[3];
float mass;
};
I successfully wrote to file.dat as binary but having problem in reading and searching...here is my func...
void searchSymbol(char sym, chemicalElement chemEl[]){
ifstream binFile;
unsigned short int i=0;
binFile.open("chemicalEl.dat", ios::binary);
if(binFile.good())
cout<<"File read for search"<<endl;
[Code]..
I'm doing a homework assignment where I have to calculate monthly interest from a starting balance. I've pulled several sections of the code from various parts of the book. So my problem may be that I'm not combining them correctly.
I'm getting the following error:
Error1error LNK2019: unresolved external symbol "public: __thiscall SavingsAccount::SavingsAccount(void)" (??0SavingsAccount@@QAE@XZ) referenced in function _main
The ios flags are new to me and that may be part of the problem. As soon as I can get a working program, I'm going to make the starting balance and interest rate user inputs. But I get seem to get past this error.
// Savings.cpp
// Chapter 10_Problem 10.7
#include <iostream>
[Code].....
Need to create a program in c++ to generate a symbol table of given assembly language program?
View 1 Replies View RelatedI am writing a linked list for a symbol table, but im getting a vast amount of errors.
Token.hpp:
#ifndef _Token_hpp
#define _Token_hpp
#include <string>
using std::string;
class Token {
string Type = "",
Name = "";
[Code] .....
