[riot-notifications] [RIOT-OS/RIOT] sys: add pseudomodule scanf_float (#11511)

Gilles DOFFE notifications at github.com
Tue May 14 14:33:45 CEST 2019

> That's just too expensive to enable by default. For float in general, the number one rule on embedded systems is "don't use at all".

I agree it should not be activated by default. printf_float is not activated by default. But it needs to be documented somewhere (what is the best place for this ?).

We use it on a big STM32 (STM32F446) which have the capacity to use use it. However that cost of nearly 18kB seems unacceptable.

It is more a feature to activate if needed.

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