Replace std.stdio module functionality with the use of only native system API

[dlangBugzillaToGithub]

verylonglogin.reg (@denis-sh) reported this on 2013-10-19T02:58:22Z

Transfered from https://issues.dlang.org/show_bug.cgi?id=11298

CC List

• greensunny12

Description

Advantages of the file I/O functionality based on native system API:

* No dependencies on C library bugs.
    This includes missing workarounds for OS API bugs in C library.

* No dependencies on C library API.
    This allows a reach API with the ability to use a platform-specific functionality.

* Performance.
    As a result of limited C library API and possible bugs is't possible to have a performance gaps because of C library use (e.g. see Issue 7033).

[dlangBugzillaToGithub]

greensunny12 commented on 2017-07-11T18:26:38Z

IOPipe might become `std.io` in the future: http://dconf.org/2017/talks/schveighoffer.html