C :: How To Read In Nine Bytes And Check To See If There Is A Match
Feb 22, 2013and see if the first three match a list then read in three more behind those that were left and perform a similar test on them and keep going?
View 8 Replies
ADVERTISEMENT
C :: Fastest Way To Check If Bytes Contained In Array Are All X00
Nov 30, 2014I'll process the raw content of a stream which obviously will be loaded one chunk at a time into an buffer.I need to check if every chunk content is x00 filled. If it is, I'll increase the blank chunks counter of 1.On your personal opinion, which is the fastest an less cycles consuming manner to achieve such result?
I was wondering this: is it possible to make an instant XOR of all the buffer content to check if it does return 0 ?the only way is it to cycle through all the bytes and compare each one of them with 0?
C++ :: How To Read Single Bytes From Wifstream
Apr 27, 2013I want to read a single byte from a wifstream. With an ifstream I would use read(), but given that the char type for an wifstream is wchar_t (2 bytes), this is also being used by read(), so how can I read a single byte from such a stream?
View 3 Replies View RelatedC/C++ :: Read Bytes From A Data File
Dec 5, 2014I am a member of a group still developing the Microprose European Air War game. We have the source code and permission to do this. As the code dates back to 1998 I use Visual Studio 2006.
I have written many programs in Visual basic, and have the following one to read the airbase value in the "targets.dat" file. The file has a four byte header containing the number of tatgets, and a 32 byte data block containing the data for each target.
Private Sub Command1_Click()
List1.Clear
Dim nt As Long
Dim a4() As Long
Open App.Path & " argets.dat" For Binary Access Read As 1
'read and display the number of targets
[Code] ....
Despite many attempts I cannot write the C equivalent of this code into the eaw.exe source. All I really need to know is how to open the 'targets.dat' file and how to get the value of a byte (or integer, or long) at a given position as in the "Get #1, k, a4(n)" line.
C++ :: Comparing Char And Int - Output Match Or Does Not Match
Feb 21, 2013My program compiles fine and doesn't have any errors so I am confused as to what the issue might be.
I have a int, which is determined by the user via cin.
I have a char, which is a random word generated from an input file.
1. I want the program to display "The word you entered does match..." if the word entered by the user is the same as the random word.
2. I want the program to display "The word you entered does not match..." if the word entered by the user is not the same as the random word.
The code I'm using for number one is
if (char == "int") cout << "does match..."
The code I'm using for number two is
else if (char != "int") cout << "does not match..."
Basically the programs only outputs "does not match" whether or not it really matches. Even if it matches, it outputs does not match.
Is something wrong with my code?
C/C++ :: Read A Line With 8 Bytes Of Data From A File
Jul 23, 2012How to read a line with maximum of 8 bytes from a line in a file.
Let say line has 10248 bytes in one single line and same repeats for remaining lines in the file.
I need to read the first 8 bytes of a line and go on read the last 2 bytes of the line and repeat the till end of file.
C/C++ :: Accommodate Double-size 8 Bytes In 4 Bytes Pointer In 32bit System?
Mar 15, 2015how to accommodate double-size:8 bytes in 4 bytes pointer in 32bit system.
View 1 Replies View RelatedC++ :: Why Address Of Object Is 6 Bytes And Not 8 Bytes On 64 Bit Linux
Mar 24, 2013Code:
int i12 = 1001;
cout << i12 << " " << &i12 << endl;
gives the result: 0x7fff0d065098
It's 6 bytes, but I'd expect the address to be 8 bytes on my 64 bit machine. I am using Ubuntu 12.04, GNU compiler.
So, why the address is 6 bytes and not 8 bytes?
C++ :: Check If Cin Ready To Read
Nov 3, 2014How can i check cin or scanf is ready to read?
There is a method in Java for this (java.io.BufferedReader.ready()) but I couldn't find any method or function in c++.
C :: Read In N / Then N Words And Check To See If First Word Is Repeated
Sep 23, 2013Read in n, then n lastnames, and check to see if the first in the list is ever repeated again.Here's what I have so far:
Code:
#include <stdio.h>
#include <stdlib.h>
int strcmp(char *w1, char *w2);
int main() {
int j, n;
char string1[30], string2[30];
}
[code]....
I see the problem is that it lies within n amount of string that I am not going through every string to compare to the first one.How will do compare every string to the first one?
Current output:
3
alex
alex
alex
Not repeated
3
alex
ash
peter
Not repeated
C/C++ :: Read Dictionary File Into Array And Check Spelling?
Jan 27, 2015finishing my program which needs to do the following:
(i) Write code to read in the dictionary into an array of words
(ii) Write code to check the spelling of a word entered by the use
(iii) Like Scrabble / Countdown the user enters the letters they have and my code must find the word using the highest number of those letters
I have completed a good bit so far but I'm stuck on my checkSpelling() and findWord() functions as well as part (iii)
#include "stdafx.h"
#include <stdio.h>
#include "string.h"
int countCharOccurence(char *string, char c);
int getOption();
int checkSpelling();
[Code]....
C++ :: Loop To Read In Data And Check Data
Oct 8, 2013struct receivers
{string fname, lname, team,;
int receptions, yards, TDs, longest,rec20, fumbles, yac, firstdown;
double, averagepergain, averageperrec
}
C++ :: Sorting From Match Data
May 13, 2014say I have person 1 to person 1024
Let's say
I want to sort them from smartest to dumbest
I have very few data say
person 1 is smarter than person 23 and so on
There are many missing data
say I don't know if person 30 is smarter or dumber than person 50
How to sort this kind of array ?
I definitely know it can't be sorted but how can I sort this as best as possible.
C/C++ :: Variables From Different Functions Don't Match
Dec 4, 2014In the code below there is some error, I think it is related with functions. It compiles properly but then it outputs only : "humanslife8.90145e+032"
#include <iostream>
#include <windows.h>
#include <stdlib.h>
using namespace std;
void userInput(float HumanNumber, float SkeletonNumber, float AllHumanslife, float AllSkeltonslife, float SkeletonHealth, float HumanHealth);
void HumansTurn(int turn, float HumanAttack, float AllSkeletonslife, float HumanNumber, float HumanDamage, float SkeletonHealth, float SkeletonNumber);
[code].....
C++ :: How To Match Two Rows Of Data And Return Only 1 Value
Aug 1, 2013I've got two columns of data.
Code:
int a[6]={1,3,5,8,10,12};
int b[3]={3,5,9};
int c[6]={0}; if a is equal to ANY of the data in b, then c= a*2
if a isn't equal to any of the data in b, then c=a.
Here is the answer I want
Code:
c[6]={1,6,10,8,10,12}
I tried using two for loop, but it isn't correct.....
Code:
int a[6]={1,3,5,8,10,12};
int b[3]={3,5,9};
int c[6]={0};
for(int i=0;i<6;++i){
[Code] ....
C++ :: STL Regex Get Position Of Match Within String
Apr 18, 2013I am trying to get the position of the matches of "Un" in string "Unseen University" in c++ code using STL regex. How can I do this.
i.e. I have following:
std::vector<std::cmatch*>* matches = new std::vector<std::cmatch*>*;
intMyReturnVal = regex("Unseen University", "Un", matches);
I can access a match by
matches->at(i)
and get an Iterator to the beginning of the match by
matches->at(i)->begin()
How can I get the relative position of the match within the entire target string (i.e. "Unseen University", where, in this case, the positions should be 0 and 7)??
C++ :: STL Regex To Match Multiple Substrings
Apr 17, 2013I am using the (fairly) new STL implementation, which I just became aware of, of regexes. Seems to be an implementation of boost::regex Anyway, I have code, which I would like to use to get ALL matches within a string.
My String is: "Unseen University - Ankh-Morpork"
My regex is (simply): "Un" ;)
using code:
const char *reg_esp = "Un";
std::regex rgx(reg_esp);
std::cmatch matches;
const char *target = "Unseen University - Ankh-Morpork";
[Code] .....
gives output:
"Un" (one line only). How do I get this to match ALL instances of "Un" (i.e. that the output is "UnUn", i.e Un two times)?
C++ :: Simplest Way To Perform Attribute Match?
Aug 2, 2013I have a input record like
acct|N|Y|N|N|rose@gmail.com
Now I need to create a logic to append a code to the end of the file using the following matrix rules.
00NNNN
01NNNY
02NNYN
03NNYY
04NYNN
05NYNY
06NYYN
07NYYY
[code].....
In the above example these four flags are "N|Y|N|N", so I need to append the matching code at the end of file "04".
desired output :
acct|N|Y|N|N|rose@gmail.com|04|
as it matches code '04':
04NYNN
C++ :: Factor Out Data With Different Values To Match To Another Value
Feb 4, 2014How will you factor out data with different values to match to another value.
For example:
value A=100
value B=50,10,20,5,15,20,30
How will you construct a logic that the values on value B will have an equal value as value A.
100 = 50+20+10+20 or 100 = 50+30+20 and so on and so forth.
I am stuck.
C :: Compare 2 Strings And Print Out 1 If Characters Match And 0 If Not
Oct 29, 2014This program is supposed to compare 2 strings and print out a 1 if the characters match and a 0 if they dont. It compiles but doesnt give me the correct output.
Code:
#include <stdio.h>
#include <string.h>
void func();
int main () {
func();
return 0;
[Code] ....
C :: Trying To Match Student ID With Highest Score Along With Grade
Nov 25, 2013I am trying to correlate the student's highest score with that student's ID. The old code is in blue and the new code is in green which includes a sort. The particular information in question is in red.
Ide1
Code:
#include <stdio.h>
int main(void) {
/*Set up two arrays to include up to 50 elements each.*/
int st_numval_id[50] = {0}, st_val_tstscr[50]= {0}, i = 0, j = 0, temp;
[Code] .....
Enter the student's id and test score:
/*After the following input, then enter 0 to end the input*/
Student ID Test Score Letter Grade
------------ ----------- --------------
1653 77 C
1945 72 C
1020 50 F
1955 92 A
1900 81 B
ABOVE AVERAGE STUDENTS
Ave Test Score Students Above Ave Number of: A's B's C's D's F's
----------- ---------- --------- --- --- --- --- ---
62.00 4 1 1 2 0 1
THE STUDENT WITH THE HIGHEST TEST SCORE
Student ID Test Score Letter Grade
--------- ---------- ------------
1900 0 F
Press any key to continue...
C :: Program To Match Strings From Input To Files Using Dfa
Sep 2, 2013'Write a program to match the user input string with the contents of text files and give the result as to which files contain the input string. This has to be done by using finite automaton.' (Any language can be used) So basically, the user will input a string (in the command line or a gui) and "we must pass the text files to the DFA" (I'm double quoting this because it's precisely what my professor told) and then display those files which contain the string. The string can be hard-coded, ie,the user will get the output file that contains a specific string. ex: 'hello'. The problem is, I have never done any program on DFA so I'm at a loss. how to write the program. Should I read the files first and then use some 'switch' or 'goto' conditions for the DFA? Below is a code I found on the internet for simulating a DFA accepting a specific string.
Code:
s: accept = false; cin >> char;
if char = "m" goto m;
if char = EOF goto end;
goto s;
m: accept = false; cin >> char;
if char = "m" goto m;
if char = "a" goto a;
if char = EOF goto end;
goto s;
}
[code]....
C++ :: Match Word To Definition Hangman Game
Jun 25, 2014Basically I have a text file called words. I'm supposed to extract a word randomly from the file and have the user guess the word according to the definition.
I'm having trouble matching the definition to the word from the text file.
Here's my code:
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <ctime>
using namespace std;
int main(){
int number;
int count = 0;
string word;
[Code] ....
Here is my text file
apple#the usually round, red or yellow, edible fruit of a small tree
boat#a vessel for transport by water
horse#a solid-hoofed plant-eating domesticated mammal with a flowing mane and tail, used for riding
television#a system for transmitting visual images and sound that are reproduced on screens
soup#a liquid dish, typically made by boiling meat, fish, or vegetables, etc.
bottle#a container, typically made of glass or plastic and with a narrow neck
barber#a person who cuts hair
toast#sliced bread browned on both sides by exposure to radiant heat
radar#a system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects
red#of a color at the end of the spectrum next to orange and opposite violet
C++ :: Multiply String To Int - Could Not Find Match Operator
Jan 5, 2015Whats wrong with my program ? It always says that coundn't find match operator ? What can i do ? I want to multiply string pay to int HOURS.
#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int main () {
system("color 8e");
string ID,name, address,No, pos ,pay, hanap;
string hours;
[Code] .....
C# :: How To Match Regex If Input Was Array Of Strings
May 19, 2014In the MSDN, it gives an example using Regex.Matches method:
using System;
using System.Text.RegularExpressions;
public class Example {
public static void Main() {
string pattern = "a*";
string input = "abaabb";
foreach (Match m in Regex.Matches(input, pattern))
Console.WriteLine("'{0}' found at index {1}.",
m.Value, m.Index);
[code]......
I am wondering if string input was an array of strings instead, how would I use Regex.Matches?
What I was thinking about doing is having the input array set to ToString(), input.ToString(), but that doesn't seem to work.
C++ :: Compiler Says Cctor Definition Does Not Match Its Prototype
Dec 30, 2013The compiler says my Rotor's cctor's definition doesn't match it's prototype.
Also, how can I convert my for loops into foreach loops?
Attached is the project.