Re: Standard C++ Library
June Lee wrote:
So there are 3 types of library / header in C++?
CRT (C runtime library)
Standard C++ Library
Platform SDK for Visual C++
No. There is a standard for the C language, which defines some fundamental
types like int or float. Also included is a set of utility functions and
structures. The C++ standard includes the C standard by reference and adds
some things to it, most notably some keywords like e.g. 'class' and a
library containing the stuff which came from the IOStreams library or the
STL.
An SDK is a collection of headers and libraries which is used to develop for
a certain target. When talking about "the Platform SDK" it typically means
the SDK used to develop desktop win32 applications, but there are also SDKs
for driver development (named DDK) or SDKs for various embedded platforms
(MS Windows CE). None of this is part of C++ though, as far as C++ is
concerned these are just extension libraries even though they rather form
the interface to the system upon which the C++ implementation is operating.
where CRT is low level code like doing all the bit and bytes
No, the CRT is the code that starts and initialises an application and
provides C functionality like malloc() and printf().
where Platform SDK is high level code doing all those Web Service,
Security, Message Queue, UI / GUI, COM, HTTP / networking stuff?
Message queues are part of the MS Windows OS, just as the GUI and
networking. HTTP support isn't, for that you need an additional library,
though the Explorer is capable of acting as HTTP client.
any other must have / used alot kind of library for C++ that
programmer use alot besides the above 3 library?
On win32 only: MFC
Otherwise: Boost
Uli
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