***BOGO*** Re: [Mingw-users] ANSI escape sequences problem

[Brian Dessent <brian@xxxxxxxxxxx>]

Bengt Werstén wrote:

> That did clear some part. The pseudo terminal concept was new for me although I have used it but without realizing how it actually worked. I still feel like some parts are a bit unclear. The main problem now is how do I disable all the IO buffering?

Well, it depends on what IO abstraction level you're using.  There are
at least four that come to mind off the top of my head:

1. The Win32 API level, using HANDLES, e.g. ReadFile/WriteFile.
2. The C runtime level, using file descriptors, e.g. read/write.
3. The C runtime level, using C streams (FILE *), e.g. fread/fwrite.
4. The C++ runtime level, using iostream, e.g. cin/cout.

For (3) you can disable buffering with setvbuf() with _IONBF.  For (4)
you can control buffering with foo.rdbuf()->pubsetbuf(0, 0), I think. 
(1) and (2) are AFAIK direct in that they read or write as many bytes as
specified in the call without any buffering.

Brian

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