C++ :: Simplest Way To Perform Attribute Match?
Aug 2, 2013
I 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
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Feb 21, 2013
My 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?
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Jan 18, 2013
What is the simplest 3D physics engine that you have used, that works well?
All I need to be able to represent is a spherical ground (planet), one or more tetrahedrons, with 1 or 0 cylinders coming out of each face, which might connect to other tetrahedrons. The tetrahedrons and cylinders have weight and can rotate around their connection point in 1 direction.
Basically, they are simple digital robots that need to walk around, so I don't need something with the complexity of Havok or Newton.
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Feb 15, 2015
I can't compile the simplest boost asio program #include <boost/asio.hpp> int main(){}
Code Blocks 13.12 writes out message "swprintf was not declared in this scope". (within win_static_mutex.ipp file)
Visual Studio 2013 writes a lot more (within win_iocp_io_service.ip file), to begin with: "min is not a member of std" and there are a lot of errors in error.hpp file stating "WSA13 identificator is not defined" (WSA13, WSA100, WSA102 etc.)
Almost everything else from boost compiles good.
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Apr 3, 2015
I would like to know how can i set a constant attribute in the constructor. This attribute is an int value that cannot be changed.
For instance:
class Test {
public:
const int x;
public:
Test(const int val);
[code].....
With this code i get compile error!
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Sep 6, 2014
I have tried googling, so, reddit, irc, and various other forums. Anyways, I am writing a todo list app in c. It generates an xml tree that looks something like this: [URL]... . The problem where I am struggling, is in the function todo_complete, I try to make the attribute of an item switch from false to true. it does it without error, but I can't make it stay that way. here is the code: [URL]...
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Mar 27, 2013
I want to create a map contaning a regex as key and a char* as an attribute , like:-
map<regex, char*> res;
res["[[:alnum:]]"] = "alphanumeric text";
but the following error is generated:-
vector<pair<regex,string>>res;
res.push_back(make_pair("[[:alnum:]]","alphanumeric"));
but the error generated is:-
no instance of overloaded function "std::vector<_Ty, _Alloc>::push_back [with _Ty=std::pair<std::regex, std::string>, _Alloc=std::allocator<std::pair<std::regex, std::string>>]" matches the argument list
argument types are: (std::pair<const char *, const char *>)
object type is: std::vector<std::pair<std::regex, std::string>, std::allocator<std::pair<std::regex, std::string>>>
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Dec 9, 2013
I'm having the same problem : [URL] .....
Though, my vector isn't one of int, it is a vector of objects from another class and NetBeans won't compile it.
#include <cstdlib>
#include<vector>
#include <string>
#include<iostream>
using namespace std;
class estoque{
[Code] .....
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May 8, 2014
I am trying to create a custom ValidationAttribute in my c# .net code. I have done a lot of searching and have code that should be working but the IsValid method is not firing as far as I can tell.
Model code:
[Required(AllowEmptyStrings = false, ErrorMessage = "required")]
//[Range(2014, 2100, ErrorMessage="Please enter a valid year.")]
//[RegularExpression(@"^d{4}$", ErrorMessage = "Please enter a valid year.")]
[ValidYear(ErrorMessage="Please enter one >= 2014")]
[Display(Name = "Exp. Year")]
public string expYear { get; set; }
And this is the class in that same model:
public class ValidYearAttribute : ValidationAttribute {
protected override ValidationResult IsValid(object value, ValidationContext validationContext){
return new ValidationResult("Something went wrong");
}
}
Why the IsValid is not firing.
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Mar 27, 2013
I would like to modify attributes like modification/creation dates.The function is correctly working as if I type in "ls -al", the timestamp is correct. But when using my program to read these attributes, it returns the "real" modification/creation date. Here is the function that shows the timestamp :
Code:
time_t t = sb.st_mtime; struct tm tm = *localtime (&t);
char s[32];
strftime (s, sizeof s, "%d/%m/%Y %H:%M:%S", &tm);
printf ("%-14s %s", lecture->d_name, s); And here is the code for modifying the timestamps : Code: void modifyAttributes(char * file, int mtime, int atime)
}
[code]....
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Sep 17, 2014
Here is the site that I want to interact Genderchecker
I want to set a value to a specific element in a web site. Perform a click on an element that is image. Get the result <span> text into string variable...
What should I use ?
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May 15, 2013
I have this big project and I need to do data validation for an email.
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Dec 26, 2014
I am really unsure how to keep within the boundries and still perform the function I need. My code functions normal when I have both categories 'buy' and 'sell' in the queue which is my main goal and I should be clocked out on this function BUT, If the queue is missing all 'sell' data, it segment faults.
I don't want to change any of the functionality, just get rid of the segment fault error. It appears b < buydat.size() and buydat[b+1] are in conflict. The purpose of the algorithm is capture the record sets in groups of 7 from data coming in from the www as strings. In that group/set, I pattern match for the string 'Buy' and if true, insert record into vector for processing. I also need the price (y = 3)
How do I capture buydat[2] and buydat[3] in groups of 7 without a segment fault?
Code:
void buymngr(){
//vector defs
vector<std::string> buydat;
vector<std::string> markdat;
vector<std::string> pricedat;
vector<std::string> qworkcoin;
buydat = getmyData();
[Code] ....
When one buy and one sell are sitting in the queue. Code functions as expected:
gentoo-mini # ./masterMain
Code:
I got my own data
I just got market buy data
Bork!
Bork2!
You 'do' have buy string match data!
my max price is 0.00492975 at position 0
[Code] ....
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Sep 19, 2013
trying to understand operator overloading, and i wrote some code just to define a "-" operator to do a simple subtraction. SO, i wrote a program that can perform a subtraction between two objects and put the result in the third object. now I Just cant show the result on the console. And also can anyone define the meaning of [b1.x], like I want to know am I assigning the value to the "b1"object or the x variable? This is a very concept that I need to understand.
#include<iostream>
using namespace std;
struct Ok
{
int x;
int y;
};
Ok operator-(const Ok& a , const Ok& b)
{
Ok result;
result = (a - b);
return result;
}
int main()
[Code]...
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May 29, 2014
I had created windows service .from that i just want to insert data into database . It is successfully installed but it is not started. It gives an error service could not started...
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Dec 16, 2014
I am having some column say "Response" column in my Datatable.Now I want to fetch this particular column value and compare this value with the maximum response how to fetch and compare it in C#.net .. This is my code.
for (int i = 0; i < DataFilter.Rows.Count; i++) {
DataRow dr = DataFilter.Rows[i];
DataView dv2 = new DataView();
dv2 = DataFilter.DefaultView;
[Code] ......
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Jul 13, 2013
how to use template parameters to perform arithmetic operations on objects.
I feel that it would best to demonstrate my issue rather than try and explain it.
Sample:
// Fundamental object structure
template<int T> struct myInt
{
myInt() { value = T; };
[Code]....
What I don't know is how to get a hold of the T variable to add them through the 'add' structure. Also, might any of this have to do with sequence wrappers?
seq_c<T,c1,c2,... cn> is essentially what I'm thinking of. Where T in this case is the type and c to the nth c are the values.
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Oct 9, 2013
struct st
{
char a;
short b;
char c;
}
what will be size of structue.
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Jan 16, 2014
Following is the code for inserting elements in a tree and then retrieving them back using inorder traversal technique elements are getting inserted just fine,but the code doesn't displays the elements of the tree while performing inorder traversal..
Code:
#include<stdio.h>
#include<stdlib.h>
struct node{
int data;
struct node *right;
struct node *left;
}*z,*t,*root=NULL,*x=NULL,*y=NULL;
[Code]....
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Jan 17, 2014
I am reading from a text file and want to create a program that will perform the same calculation for every oscillation.
The text file I'm reading from is attached to this post. A3.txt
The program that I've written is as follows:
Code:
#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream inFile ("AP1.txt");
ofstream results_file ("APDuration.txt");
[Code]...
Where I'm having trouble is in having the inFile.seekg function iterate to the next series of values.
Here is what the data file looks like in a graph:
In a nutshell, my program will read the duration of each action potential from a point called "dVmax" (where the upstroke is at its maximum upward rate of change) to the point of 90% repolarization (on the downstroke where 90% of the total wave amplitude is subtracted from the volts at peak amplitude).
If you would like to test my program on one action potential, here is one action potential : AP1.txt
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Oct 18, 2014
My assignment is : Please use C type strings ( array representation of strings). Write a program that will ask the user to enter a string. It will then regard that string as a worked-on string and allow the user to perform the following editing functions on it:
s – search
i – insert
a – append
d – delete
a – append
d – delete
r – replace
e – exit
s – search
This option will allow the user to search for a specified string in the worked-on string. If the string is
found, it will display the starting index (position) of the searched string in the worked-on string.
here is what i have so far.
#include <iostream>
#include <cstring>
using namespace std;
int main() {
char a_string[80];
[Code] .....
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May 13, 2014
say 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.
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Dec 4, 2014
In 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].....
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Aug 1, 2013
I'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] ....
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Feb 22, 2013
and 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?
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Apr 18, 2013
I 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)??
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