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How fast is D compared to C++?
....init.length);// Make index integrals portable - Linux is ulong, Win8.1 is uint
immutable long N = 20000;
immutable int size = 10;
// Replaced for loops with appropriate foreach versions
value_type scalar_product(in ref vector_t x, in ref vector_t y) { // "in" is the same as "const...
在ATL无窗口ActiveX 控件中如何使用定时器？ - C/C++ - 清泛网 - 专注C/C++及内核技术
... TimerProc(
HWND hwnd, // 定时器消息的窗口句柄
UINT message, // WM_TIMER 消息
INT_PTR idTimer, // 定时器标志
DWORD dwTime) // 当前系统启动计时
{
...
}
调用方法：
UINT nRet = SetTimer(NULL, // handle to main windo...
windows异常处理 __try __except - C/C++ - 清泛网 - 专注C/C++及内核技术
...ACK_OVERFLOW) ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
}
UINT WINAPI ThreadFunc(LPVOID param)
{
__try
{
// guarded code
}
__except (FilterFunc(GetExceptionCode()))
{
// 如果是栈溢出，进行处理。
}
return TRUEt;
}
except参数的...
Declaring an unsigned int in Java
...Unsigned.*;
// and then...
UByte b = ubyte(1);
UShort s = ushort(1);
UInteger i = uint(1);
ULong l = ulong(1);
All of these types extend java.lang.Number and can be converted into higher-order primitive types and BigInteger. Hope this helps.
(Disclaimer: I work for the company behind the...
C++11 range based loop: get item by value or reference to const
... purpose, but in the way it is written):
long long SafePop(std::vector<uint32_t>& v)
{
auto const& cv = v;
long long n = -1;
if (!cv.empty())
{
n = cv.back();
v.pop_back();
}
return n;
}
Here, the author has created a const reference to v to u...
How to get the IP address of the server on which my C# application is running on?
...Filter out "virtual" addresses by checking for AddressPreferredLifetime != UInt32.MaxValue.
At this point I take the address of the first (if any) unicast address that matches all of these filters.
EDIT:
[revised code on May 16, 2018 to include the conditions mentioned in the text above for dupl...
Equivalent of typedef in C#
...
I couldn't convert typedef uint8 myuuid[16]; through "using" directive. using myuuid = Byte[16]; doesn't compile. using can be used just for creating type aliases. typedef seems to be much more flexible, since it can create an alias for a whole declara...
How to make URL/Phone-clickable UILabel?
...dText?.length)!), options: NSAttributedString.EnumerationOptions(rawValue: UInt(0)), using:{
(attrs: Any?, range: NSRange, stop: UnsafeMutablePointer<ObjCBool>) in
if NSLocationInRange(indexOfCharacter, range){
if let _attrs = attrs{
UIApplication....
How to properly seed random number generator
...ndom number generator")
}
math_rand.Seed(int64(binary.LittleEndian.Uint64(b[:])))
}
As a side note but in relation to your question. You can create your own rand.Source using this method to avoid the cost of having locks protecting the source. The rand package utility functions are convenie...
List of Delphi language features and version in which they were introduced/deprecated
...
Delphi XE8
Support for 64-bit iOS;
New integer types: FixedInt, FixedUInt 32-bit integer types on all platforms;
New platform dependent integer types: LongInt, LongWord (64-bits on iOS-64, 32-bits on all other platforms);
Delphi XE7
String-Like Operations Supported on Dynamic Arrays
Par...