大约有 23,300 项符合查询结果（耗时：0.0314秒） [XML]
How to convert an IPv4 address into a integer in C#?
...
32-bit unsigned integers are IPv4 addresses. Meanwhile, the IPAddress.Address property, while deprecated, is an Int64 that returns the unsigned 32-bit value of the IPv4 address (the catch is, it's in network byte order, so yo...
C# - how to determine whether a Type is a number
...ine whether or not a given .Net Type is a number? For example: System.UInt32/UInt16/Double are all numbers. I want to avoid a long switch-case on the Type.FullName .
...
How to quickly check if folder is empty (.NET)?
...
Callum Watkins
2,22222 gold badges2323 silver badges4040 bronze badges
answered Jun 5 '09 at 8:33
Thomas LevesqueThomas Levesque
...
Targeting both 32bit and 64bit with Visual Studio in same solution/project
... as it pulls off the basic trick involved (create a common MSI, as well as 32-bit and 64-bit specific MSIs, and use an .EXE setup launcher to extract the right version and do the required fixups at runtime) very, very well.
You can probably achieve the same results using other tools or the Window...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...feated if it wasn't done that way.
This way you can write fast code using 32-bit values in 64-bit mode without having to explicitly break dependencies all the time. Without this behaviour, every single 32-bit instruction in 64-bit mode would have to wait on something that happened before, even thou...
Why is Java's boolean primitive size not defined?
...
Short answer: yes, boolean values are manipulated as 32-bit entities, but arrays of booleans use 1 byte per element.
Longer answer: the JVM uses a 32-bit stack cell, used to hold local variables, method arguments, and expression values. Primitives that are smaller than 1 cell ...
How does Python manage int and long?
...the maximum size in bytes a Python int can be.
This will be gigabytes in 32 bits, and exabytes in 64 bits.
Such a large int would have a value similar to 8 to the power of sys.maxsize.
share
|
i...
Why is creating a new process more expensive on Windows than Linux?
...ation, it is probably a good idea to distinguish between NT and Windows/Win32. As far as NT (i.e. the kernel itself) goes, I do not think process creation (NtCreateProcess) and thread creation (NtCreateThread) is significantly slower as on the average Unix. There might be a little bit more going on,...
How to install mongoDB on windows?
...ing to test out mongoDB and see if it is anything for me. I downloaded the 32bit windows version, but have no idea on how to continue from now on.
...
SQLite UPSERT / UPDATE OR INSERT
...ostgreSQL syntax.
INSERT INTO players (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
Note: For those having to use a version of SQLite earlier than 3.24.0, please reference this answer below (posted by me, @MarqueIV).
However if you do...