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docs/contributing: add #pragma once to Coding Conventions

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This supersedes the older include guard mechanism since all the
compilers now support it. It's easier for new users and less prone
to error.
This commit is contained in:
James Laird-Wah 2018-09-15 11:50:12 +10:00 • committed by Drashna Jaelre
commit b1f11636c6
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docs/contributing.md
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@ -70,6 +70,7 @@ Most of our style is pretty easy to pick up on, but right now it's not entirely
* Do not write obvious comments
* If you not sure if a comment is obvious, go ahead and include it.
* In general we don't wrap lines, they can be as long as needed. If you do choose to wrap lines please do not wrap any wider than 76 columns.
* We use `#pragma once` at the start of header files rather than old-style include guards (`#ifndef THIS_FILE_H`, `#define THIS_FILE_H`, ..., `#endif`)
# General Guidelines