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.
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.)
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]...
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>>>
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"); } }
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) }
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...
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?
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()
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...
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;
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.
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..
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
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: 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};
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)??
