Thursday, March 31, 2005
Wednesday, March 30, 2005
ReHash - A console-based hash calculator
http://www.codeproject.com/cpp/ReHash.asp
ReHash is a free, open source console-based hash calculator.
You can disable hash algorithms selectively per command-line if you don't need or like them, you can choose if you want to use recursive directory scanning or not.
Tuesday, March 29, 2005
Monday, March 28, 2005
Opening a command prompt for your project
Opening a command prompt for your project
Sometimes while working with a VS.Net project, you need to run a command line tool, either on the sources or output of the project. VS provides an easy way to add a menu item that will open a command prompt in the target directory of your application, or in the source folder.
In order to enable this, first go to the Tools menu, and choose External Tools. In the add dialog box, create a new item, and give it a name such as Source Shell. The command should be cmd.exe. For initial directory, you can pick one of:
- $(ProjectDir) - source code for the current project
- $(SolutionDir) - root directory of the current solution
- $(TargetDir) - build location of the current project. This will adjust for different configurations, so it will open a shell in bin\Debug for debug builds, and bin\Release for release builds.
In my copy of VS I have a menu option for Source Shell, opening in $(ProjectDir), and one for Build Shell, opening in $(TargetDir). I also have a quick script that I run that sets up various environment variables, network drive maps, and drive substitutions, in order for me to have a useful dev command window. I get this script to run by adding
/k SetDevEnv.cmd
To the arugments line.
Wednesday, March 23, 2005
Visual C# Developer Center: Tools
Tools recommended by Microsoft for use with C#
Visual C# Developer Center: Tools
Tuesday, March 22, 2005
Indian Grocery Store in Spokane
Bollywood Video and Groceries
1812 East Sprague Avenue, Spokane, WA 99202
(509) 484-6365
Apparently it is close to Costco on Sprague Ave - so if you can look that up, you should be able to figure out the grocery store as well.
Yellow Pages
Why does the debugger show me the wrong function? - identical COMDAT folding
Why does the debugger show me the wrong function?
Often you'll be minding your own business debugging some code, and you decide to step into one function and the debugger shows that you're in some other function. How did that happen?
class Class1 { public: int *GetQ() { return q; } private: int *p; int *q; }; class Class2 { public: virtual int GetValue() { return value; } private: int value; }; You then step through code that does something like this:
int Whatever(Class2 *p) { return p->GetValue(); } And when you step into the call to p->GetValue() you find yourself in Class1::GetQ. What happened?
What happened is that the Microsoft linker combined functions that are identical at the code generation level.
?GetQ@Class1@@QAEPAHXZ PROC NEAR ; Class1::GetQ, COMDAT 00000 8b 41 04 mov eax, DWORD PTR [ecx+4] 00003 c3 ret 0 ?GetQ@Class1@@QAEPAHXZ ENDP ; Class1::GetQ ?GetValue@Class2@@UAEHXZ PROC NEAR ; Class2::GetValue, COMDAT 00000 8b 41 04 mov eax, DWORD PTR [ecx+4] 00003 c3 ret 0 ?GetValue@Class2@@UAEHXZ ENDP ; Class2::GetValue Observe that at the object code level, the two functions are identical. (Note that whether two functions are identical at the object code level is highly dependent on which version of what compiler you're using, and with which optimization flags. Identical code generation for different functions occurs with very high frequency when you use templates.) Therefore, the linker says, "Well, what's the point of having two identical functions? I'll just keep one copy and use it to stand for both Class1::GetQ and Class2::GetValue."
0:000> u Class1::GetQ 010010d6 8b4104 mov eax,[ecx+0x4] 010010d9 c3 ret 0:000> u Class2::GetValue 010010d6 8b4104 mov eax,[ecx+0x4] 010010d9 c3 ret Notice that the two functions were merged: The addresses are identical. That one fragment of code merely goes by two names. Therefore, when the debugger sees that you've jumped to 0x010010d6, it doesn't know which of the names it should use, so it just picks on.
That's why it looks like you jumped to the wrong function.
To disable what is called "identical COMDAT folding", you can pass the /OPT:NOICF flag to the linker.
Sunday, March 20, 2005
Gurudwara (Sikh temple) in Spokane, Wa
Visited the Sikh temple of Spokane.
Its most probably the only sikh temple between Seattle and Minneapolis.
The giani at the gurudwara, was an especially nice person.
The address of the gurudwara is
Sikh Temple of Spokane
1420 North Barker Road
Spokane, WA 99016
Phone: 509-892-9377
directions when driving from Montana.
(take exit 293. At the end of the exit, turn right onto Barker road. The gurudwara is on the right side of the road, opposite Conco gas station).
The gurudwara has paat every sunday at 11:00am, followed by laangar.
About 45 Sikh families live in the area around spokane.
While visiting the gurudwara I recommend a visit to Spokane valley mall. Exit 292 (I think). Also visit the Post-Falls outlet center. I believe it was exit no. 2 (into the Post-Falls event center) in Idaho.
(The mall is on the right side of i-90, while travelling from Montana - The outlet center is on the left side of I-90) .
Indian restaurant in Spokane, Washington
Top of India, on East Sprague.
They have a pretty good buffet, served even on weekends. (The buffet was $7.00). The naans and chicken tikka masala were especially good. This restaurant was previously called Delhi palace and is now under new management.
visit it at : 11114 East Sprague Avenue, Spokane Valley, WA 99206
map
(from Montana, take exit 291. At the end of the exit, take a left onto Pine st. Drive down pine st and take a right onto East Sprague. Top of india is on the left side)
Thursday, March 17, 2005
DirectX and .Net - Tutorials
http://www.sunlightd.com/Windows/DirectX.NET/
http://users.pandora.be/riemer/index.html
Monday, March 14, 2005
Generating a Random Password - C#
public static string GenerateRandomPassword(int PasswordLength)
{
string _allowedChars = "abcdefghijkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789!@$?";
Byte[] randomBytes = new Byte[PasswordLength];
char[] chars = new char[PasswordLength];
int allowedCharCount = _allowedChars.Length;
Random randomObj = new Random();
for(int i = 0;i < PasswordLength; i++)
{
randomObj.NextBytes(randomBytes);
chars[i] = _allowedChars[(int)randomBytes[i] % allowedCharCount];
}
return new string(chars);
}
Thursday, March 10, 2005
String to Enumeration Value C#
Here is code, that will take a string value and return the corresponding enumeration value.
//t - type of the enumeration
static object StringToEnum( Type t, string Value )
{
foreach ( FieldInfo fi in t.GetFields() )
if ( fi.Name == Value )
return fi.GetValue( null ); // We use null because enumeration values are static
throw new Exception( string.Format("Can't convert {0} to {1}", Value, t.ToString()) );
}
Monday, March 07, 2005
Using MemoryStream .NET
//writing to Memory stream
byte[] plainTextBytes = Encoding.UTF8.GetBytes(plainText);
MemoryStream memoryStream = new MemoryStream();
memoryStream.Write(plainTextBytes, 0, plainTextBytes.Length);
memoryStream.FlushFinalBlock();
//getting the bytes from memory stream and converting them to a string
byte[] memoryTextBytes = memoryStream.ToArray();
string originalText = Convert.ToBase64String(memoryTextBytes );
//reading from memoryStream
byte[] memoryTextBytes2 = new byte[memoryStream.Length]; memoryStream.Seek(0,SeekOrigin.Begin);
int readByteCount = memoryStream.Read(memoryTextBytes2 , 0, memoryTextBytes2 .Length);
memoryStream.Close();
string plainText = Encoding.UTF8.GetString(plainTextBytes, 0, readByteCount);
--------------------------------------------------------------------------------------
using MemoryStream to BinarySerialize into memory
--------------------------------------------------------------------------------------
MemoryStream t = new MemoryStream();
BinaryFormatter myFormatter = new BinaryFormatter();
myFormatter.Serialize(t, someObject); //serialize some object
byte[] plainTextBytes = new byte[t.Length];
t.Seek(0,SeekOrigin.Begin);
int readByteCount = t.Read(plainTextBytes, 0, plainTextBytes.Length);
t.Close();
//plainText contains the serialized string
string plainText = Encoding.UTF8.GetString(plainTextBytes, 0, readByteCount);
///deserialization
byte[] stringAsBytes = Encoding.UTF8.GetBytes(plainText);
t = new MemoryStream(stringAsBytes);
object newO = myFormatter.Deserialize(t) ;
Friday, March 04, 2005
Free e-books for programmers
Free APress books for download.
I really like COM and .NET Interoperability
A P R E S S . C O M | Books for Professionals, by Professionals ...
Wednesday, March 02, 2005
.NET Debugger Visualizations - Hashtable
http://msdn.microsoft.com/msdnmag/issues/04/08/NETMatters/default.aspx
An article from MSDN mag (Aug 2004), which shows how to create a hashtable visualizer, than can be used during debugging.
Very useful.
Tuesday, March 01, 2005
Dr. GUI .NET #4 - System.Object and Garbage Collection
Dr. GUI .NET
Summary: Dr. GUI describes System.Object, the base class of all other .NET Framework types, and shows how to use its methods in any .NET Framework type. The good doctor also. (nn printed pages)
MapPoint
For starting information on MapPoint have a look at these links:
http://msdn.microsoft.com/mappoint/
http://www.microsoft.com/mappoint/default.mspx
http://www.microsoft.com/mappoint/products/webservice/default.mspx
http://blogs.msdn.com/cthota/category/7155.aspx
http://www.microsoft.com/mappoint/products/webservice/regional.mspx
New TLAs
| CCE | Compute Cluster Edition |
| HPC | High Performance Computing |
| ISV | Independent Software Vendor |
| RTM | Release To Manufacturing |
| SKU | Stock Keeping Unit |
| x64 | AMD 64-bit and Intel EM64T |