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What is the difference between Google App Engine and Google Compute Engine?
...ween GAE Standard and GAE Flex):
Compute Engine is analogous to a virtual PC, where you'd deploy a small website + database, for instance. You manage everything, including control of installed disk drives. If you deploy a website, you're in charge of setting up DNS etc.
Google App Engine (Standard...
What should I use Android AccountManager for?
...can access protected material at the same time in their android device and PC without the need for recurrent logins.
From the security point of view, using the same password in every request to the server allows for possible eavesdropping in non-secure connections. Password encryption is not suffici...
Why doesn't c++ have &&= or ||= for booleans?
..._cast<bool*>(&i);
b |= true; // MAY yield 3 (but doesn’t on my PC!)
But since this code results in undefined behaviour anyway, we may safely ignore this potential problem in conforming C++ code.
1 Admittedly this is a rather big caveat as Angew’s comment illustrates:
bool b = tru...
How to add a local repo and treat it as a remote repo
...ocal repo act as a remote with the name bak for another local repo on my PC, using the following:
4 Answers
...
Send email using java
...r for sending mails. There are servers you can install locally on your own pc, or you can use one of the many online servers. One of the more known servers is Google's:
I just successfully tested the allowed Google SMTP configurations using the first example from Simple Java Mail:
final Email ...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...料時，如果送出的資料緩衝區大於WinSock所能傳遞datagram的最大長度，這時send()和sendto()傳回發生WSAEMSGSIZ這個錯誤訊息
WSAEPROTOTYPE (10041) 錯誤的協定型別
錯誤產生的原因是在socket()函式呼叫時指定了WinSock不支援的協定舉例來...
List of Delphi language features and version in which they were introduced/deprecated
...een added:
ALIGN_STACK
CPUX86
CPUX64
MACOS (Mac operating system)
MACOS32
PC_MAPPED_EXCEPTIONS
PIC
WIN64
Full unit scope names are now required in your uses clause.
{$ExcessPrecision on/off} compiler directive (x64 only)
The build-in types differ depending on the target platform (32/64-bit)
Ex...
How do cache lines work?
...he largest address below the one you need that is multiple of 64).
Modern PC memory modules transfer 64 bits (8 bytes) at a time, in a burst of eight transfers, so one command triggers a read or write of a full cache line from memory. (DDR1/2/3/4 SDRAM burst transfer size is configurable up to 64B...
base64 encoded images in email signatures
...pBMVF6sYeEpDQIFDdo62
BHwZApjEhjW94RyQTWK/FPx+Ahpg09GdOzoJ/ESx0JaOQ42e2tsiEYpCEFwAGi04
8g6gSgNOovD0gBeVjCPR2BIAkgOrmSNxPo3rbhgHZiMFPnLkBg2BAuQ2XdmlwK1Z
ooZu1sRz6xWlxd4U9GIHwOmdzFgCFKCERYNoeo2BZsPp0KY+A/OAfZDYWKJZLZBo
1mQXdlojvxNYiXrD8I+2uEvTdFJQksID0XjXiUwjJm6CzBVeBQgwBop1ZPpC8RKt
YN5RCpS6XiyMht093o8...
Perl build, unit testing, code coverage: A complete working example
... reporting. (I'm using ActiveState ActivePerl v5.10.0 on a Windows XP Pro PC, Module::Build, Test::More, Devel::Cover)
Start out with a directory for your Perl project and then create a "lib" directory and a "t" directory under your project directory:
HelloPerlBuildWorld
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