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Jeff Epler 9632360caa
Use a macro to compute the size of arrays at compile time (#18044)
* Add ARRAY_SIZE and CEILING utility macros

* Apply a coccinelle patch to use ARRAY_SIZE

* fix up some straggling items

* Fix 'make test:secure'

* Enhance ARRAY_SIZE macro to reject acting on pointers

The previous definition would not produce a diagnostic for
```
int *p;
size_t num_elem = ARRAY_SIZE(p)
```
but the new one will.

* explicitly get definition of ARRAY_SIZE

* Convert to ARRAY_SIZE when const is involved

The following spatch finds additional instances where the array is
const and the division is by the size of the type, not the size of
the first element:
```
@ rule5a using "empty.iso" @
type T;
const T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)

@ rule6a using "empty.iso" @
type T;
const T[] E;
@@

- sizeof(E)/sizeof(T)
+ ARRAY_SIZE(E)
```

* New instances of ARRAY_SIZE added since initial spatch run

* Use `ARRAY_SIZE` in docs (found by grep)

* Manually use ARRAY_SIZE

hs_set is expected to be the same size as uint16_t, though it's made
of two 8-bit integers

* Just like char, sizeof(uint8_t) is guaranteed to be 1

This is at least true on any plausible system where qmk is actually used.

Per my understanding it's universally true, assuming that uint8_t exists:
https://stackoverflow.com/questions/48655310/can-i-assume-that-sizeofuint8-t-1

* Run qmk-format on core C files touched in this branch

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
3 years ago
..
adns5050.c
adns5050.h Create generic Pointing Device Pin defines (#17776) 3 years ago
adns9800.c
adns9800.h Create generic Pointing Device Pin defines (#17776) 3 years ago
adns9800_srom_A6.h
analog_joystick.c analog.[ch]: remove unnecessary includes (#16471) 4 years ago
analog_joystick.h
cirque_pinnacle.c [Core] Introduce pointing device specific debug messages (#17663) 3 years ago
cirque_pinnacle.h [Core] Introduce pointing device specific debug messages (#17663) 3 years ago
cirque_pinnacle_gestures.c Implement relative mode for Cirque trackpad (#17760) 3 years ago
cirque_pinnacle_gestures.h Implement relative mode for Cirque trackpad (#17760) 3 years ago
cirque_pinnacle_i2c.c [Core] Introduce pointing device specific debug messages (#17663) 3 years ago
cirque_pinnacle_regdefs.h Implement relative mode for Cirque trackpad (#17760) 3 years ago
cirque_pinnacle_spi.c [Core] Introduce pointing device specific debug messages (#17663) 3 years ago
paw3204.c Add support for PAW3204 Optical Sensor (#17669) 3 years ago
paw3204.h Create generic Pointing Device Pin defines (#17776) 3 years ago
pimoroni_trackball.c [Core] Introduce pointing device specific debug messages (#17663) 3 years ago
pimoroni_trackball.h Fixup Pimoroni trackball code (#17335) 4 years ago
pmw33xx_common.c Use a macro to compute the size of arrays at compile time (#18044) 3 years ago
pmw33xx_common.h Create generic Pointing Device Pin defines (#17776) 3 years ago
pmw3360.c [Core] PMW33XX drivers overhaul (#17613) 3 years ago
pmw3360.h [Core] PMW33XX drivers overhaul (#17613) 3 years ago
pmw3389.c [Core] PMW33XX drivers overhaul (#17613) 3 years ago
pmw3389.h [Core] PMW33XX drivers overhaul (#17613) 3 years ago