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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ct;
interface
uses
Windows, Messages, SysUtils, Classes, Dialogs, IdBaseComponent, IdComponent,
IdTCPConnection, IdTCPClient, SyncObjs, superobject;
type
TCloudConnector = class
private
FLocker: TCriticalSection;
FConnector: TIdTCPClient;
FTimeout: Integer;
FUser: string;
FToken: s...
移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...来的大小都是差不多的。当然，不只是文字，其他元素像图片什么的也是这个道理。ppk把这个viewport叫做 ideal viewport，也就是第三个viewport——移动设备的理想viewport。
ideal viewport并没有一个固定的尺寸，不同的设备拥有有不...
Convert a string representation of a hex dump to a byte array using Java?
...xml.bind.DatatypeConverter already provides a method for encoding/decoding Base64 data. See parseBase64Binary() and printBase64Binary().
– DragShot
Jul 3 '17 at 22:18
2
...
What is the size of an enum in C?
...h to hold int values. The compiler is free to choose the actual type used based on the enumeration constants defined so it can choose a smaller type if it can represent the values you define. If you need enumeration constants that don't fit into an int you will need to use compiler-specific extens...
Why does the C preprocessor interpret the word “linux” as the constant “1”?
...efine __CHAR_BIT__ 8
#define __UINT8_MAX__ 255
#define __WINT_MAX__ 2147483647
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __SIZE_MAX__ 18446744073709551615UL
#define __WCHAR_MAX__ 2147483647
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAV...
What is the argument for printf that formats a long?
...
647
Put an l (lowercased letter L) directly before the specifier.
unsigned long n;
long m;
pri...
Meaning of epsilon argument of assertEquals for double values
... numbers. With this delta value you can control the evaluation of equality based on a error factor.
Also some floating-point values can have special values like NAN and -Infinity/+Infinity which can influence results.
If you really intend to compare that two doubles are exactly equal it is best c...
How to install Java SDK on CentOS?
...
164
The following command will return a list of all packages directly related to Java. They will be...
Why do x86-64 systems have only a 48 bit virtual address space?
...facturers took a shortcut. They use an instruction set which allows a full 64-bit address space, but current CPUs just only use the lower 48 bits. The alternative was wasting transistors on handling a bigger address space which wasn't going to be needed for many years.
So once we get near the 48-bi...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...t it's unlikely to be universally-applicable. I have a bunch of other Java-based software tat I run as well like Eclipse, JasperReports iReport, etc. that are all likely to be affected by this. I think I'd rather just move the JDK1.8 directory somewhere else and use that explicitly with JAVA_HOME fo...