Replace #pragma once with traditional #ifndef guard

microsoft / jacdac-c

Jacdac C Firmware library

https://aka.ms/jacdac

MIT License

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Replace #pragma once with traditional #ifndef guard #35

Closed furbrain closed 2 years ago

furbrain commented 2 years ago

While #pragma once is quite efficient, it is not supported by all compilers, specifically Microchip's XC8 compiler. I have therefore replaced these with the more tedious, but traditional #undef guards.

ghost commented 2 years ago

All CLA requirements met.