4 Commits

Author	SHA1	Message	Date
Marian Buschsieweke	68424a924c	core: Add IS_CT_CONSTANT() ... This adds a simple macro to check (at C level) whether a given expression is proven to be compile time constant and suitable for constant folding. This allows writing code like this: ```C int gpio_read(gpio_t pin) { if (IS_CT_CONSTANT(pin)) { /* this implementation should even be able to use the port and * pin number as immediate in inline assembly */ } else { /* less efficient implementation that cannot use port and pin * number as immediate in inline assembly */ } } ```	2022-01-06 23:30:56 +01:00
Marian Buschsieweke	f2a53c8fb3	tets/unittests: add test for DECLARE_CONSTANT()	2021-11-10 15:22:48 +01:00
Benjamin Valentin	a803cab439	tests/unittests: add test for index_of()	2021-11-05 16:42:38 +01:00
Benjamin Valentin	eaf5162b5d	tests/unittests: add test for kernel_defines	2021-09-21 17:43:29 +02:00