random technical notes

Reference posters for the default keybindings in Visual Studio 2010 for Visual Basic, Visual C#, Visual C++ and Visual F#.

Common

• Windows Phone
• Windows Phone Marketplace (or Microsoft Marketplace)

Tips

• 72 Windows Phone 7 tips and tricks

The iPhone/iOS to Windows Phone 7 API mapping tool helps developers find their way around when they discover the Windows Phone platform.

If you have been developing iPhone applications and are interested in building your applications for Windows Phone 7, this guide is for you.

The guide will cover what you need to know to add Windows Phone 7 development to your skill set, while leveraging what you have already learned building iPhone applications.

1. Microsoft’s All-In-One Code Framework Coding Guideline
2. MSDN: Design Guidelines for Developing Class Libraries – New one for .NET Framework 4
3. Coding Guidelines for CSharp 3.0 and 4.0 by aviva Solutions – The downloads here includes the coding guidelines , Visual Studio 2010 rule sets and ReSharper 5 Code Style
4. Philips Healthcare – C# Coding Standard (pdf)
5. Encodo C# Handbook – Covers many aspects of programming with C#, from naming, structural and formatting conventions to best practices for using existing and developing new code. (English / October 2009)
6. .NET/SQL/TFS Code & Application Design by SSW – This includes not just for C# but also for SQL Server , Project Management etc .
7. SharpDevelop C# Coding Style Guide 0.3 by Mike Kruegar
8. C# Coding Guidelines by Validio Software (pdf)
9. The IDesign C# Coding Standard, for development guidelines and best practices
10. C# Coding Guidelines by agamura
11. C# Coding Standards and Best Programming Practices by DotnetSpider
12. Book : Framework Design Guidelines: Conventions, Idioms, and Patterns for Reusable .NET Libraries (2nd Edition) (See all Microsoft .NET Books)

Summary

Jason Fried talks about momentum, why roadmaps, specifications and projections are evil, and many other topics.

Bio

Jason Fried is the co-founder and President of 37signals, a company that builds web-base apps that make it easier for small groups to collaborate. Jason believes there’s real value and beauty in the basics. Jason co-wrote all of 37signals books, and is invited to speak around the world on entrepreneurship, design, management, and software.

• Google C++ Style Guide
• Microsoft Coding Standards
• Linux kernel coding style
• Boost Guidelines
• Alexandrescu C++ Coding Standards
• Mozilla C++ Portability Guide

Several implementations of HexToInt function:

1. This implementation was in Chrome

inline unsigned char HexToInt(unsigned char c)
{
DCHECK(IsHexDigit(c));
static unsigned char kOffset[4] = {0, 0x30u, 0x37u, 0x57u};
return c - kOffset[(c >> 5) & 3];
}

2. From SQLite

return (c + 9 * (1 & (c >> 6))) & 15;

3. another version

return c - (0x57373000 >> (c >> 5) * 8);

or

return c - (0x57373000 >> ((c >> 5) << 3));

4.  nobody will understand

return c - 128 + (c >> 5 & 3)["(PI)"];

or

return c - 128 + "(PI)"[(c >>5) & 3]

• Презентация доклада «декларативное планирование» на Software People (rsdn)
• Инструмент планирования – notepad
• Инструмент планирования – notepad (2)

Visual Studio 2008 has supports “Enable Instruction Functions” options (see a project settings -> C/C++ -> Optimization). Note that this option can enlarge code.

Also memcpy function implementation has written with using sse2 (movdqa).

int CopyMemSSE4(int* piDst, int* piSrc, unsigned long SizeInBytes)
{
// Initialize pointers to start of the USWC memory

_asm
{
mov esi, piSrc
mov edx, piSrc

// Initialize pointer to end of the USWC memory
add edx, SizeInBytes

// Initialize pointer to start of the cacheable WB buffer
mov edi, piDst

// Start of Bulk Load loop
inner_start:
// Load data from USWC Memory using Streaming Load
MOVNTDQA xmm0, xmmword ptr [esi]
MOVNTDQA xmm1, xmmword ptr [esi+16]
MOVNTDQA xmm2, xmmword ptr [esi+32]
MOVNTDQA xmm3, xmmword ptr [esi+48]

// Copy data to buffer
MOVDQA xmmword ptr [edi], xmm0
MOVDQA xmmword ptr [edi+16], xmm1
MOVDQA xmmword ptr [edi+32], xmm2
MOVDQA xmmword ptr [edi+48], xmm3

// Increment pointers by cache line size and test for end of loop
add esi, 040h
add edi, 040h
cmp esi, edx
jne inner_start
}
// End of Bulk Load loop

return 0;
}

#define DATA_SIZE 0x01000000

int main(int argc, char* argv[])
{
int *piSrc = NULL;
int *piDst = NULL;
unsigned long dwDataSizeInBytes = sizeof(int) * DATA_SIZE;

piSrc = (int *)_aligned_malloc(dwDataSizeInBytes, dwDataSizeInBytes);
piDst = (int *)_aligned_malloc(dwDataSizeInBytes, dwDataSizeInBytes);

memset(piSrc, 255, dwDataSizeInBytes);
memset(piDst, 0, dwDataSizeInBytes);

CopyMemSSE4(piDst, piSrc, dwDataSizeInBytes);

_aligned_free(piSrc);
_aligned_free(piDst);
}

Additional links:

• Increasing Memory Throughput With Intel® Streaming SIMD Extensions 4 (Intel® SSE4) Streaming Load

The CheckTokenMembership function determines whether a specified security identifier (SID) is enabled in an access token.

/*
Routine Description: This routine returns TRUE if the caller's
process is a member of the Administrators local group. Caller is NOT
expected to be impersonating anyone and is expected to be able to
open its own process and process token.
Arguments: None.
Return Value:
TRUE - Caller has Administrators local group.
FALSE - Caller does not have Administrators local group.
*/
BOOL IsUserAdmin(void)
{
 BOOL bResult;
 SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
 PSID AdministratorsGroup;
 bResult = AllocateAndInitializeSid(&NtAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID,
                                    DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0,
                                    &AdministratorsGroup);
 if(bResult)
 {
  if(!CheckTokenMembership(NULL, AdministratorsGroup, &bResult))
  {
   bResult = FALSE;
  }
  FreeSid(AdministratorsGroup);
 }
 return(bResult);
}

MSDN