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>

6 files changed, 7 insertions, 7 deletions

diff --git a/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c b/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
index 29b35f6abd..af7edc2a9b 100644
--- a/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
@@ -302,5 +302,5 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
-size_t stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
+size_t stenoLayerCount = ARRAY_SIZE(stenoLayers);
diff --git a/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c b/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
index 09243f2a24..a3324b11cd 100644
--- a/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
@@ -234,4 +234,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/default/keymap.c b/keyboards/gboards/georgi/keymaps/default/keymap.c
index 93c551af27..78964dc840 100644
--- a/keyboards/gboards/georgi/keymaps/default/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/default/keymap.c
@@ -244,4 +244,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/minimal/keymap.c b/keyboards/gboards/georgi/keymaps/minimal/keymap.c
index e9294c5cc8..c4e78033bd 100644
--- a/keyboards/gboards/georgi/keymaps/minimal/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/minimal/keymap.c
@@ -219,4 +219,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     )
 };
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/norman/keymap.c b/keyboards/gboards/georgi/keymaps/norman/keymap.c
index 4591aab22f..870e460e2c 100644
--- a/keyboards/gboards/georgi/keymaps/norman/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/norman/keymap.c
@@ -263,4 +263,4 @@ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,       KC_PGDN, KC_LEFT, KC
 			  KC_TRNS, KC_TRNS, KC_TRNS,	                        KC_TRNS, KC_TRNS, KC_TRNS)
 };
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/sten.c b/keyboards/gboards/georgi/sten.c
index c7469b6394..bd96dee758 100644
--- a/keyboards/gboards/georgi/sten.c
+++ b/keyboards/gboards/georgi/sten.c
@@ -21,7 +21,7 @@ uint32_t tChord			= 0;		// Protects state of cChord
 
 #ifndef STENOLAYERS
 uint32_t stenoLayers[] = { PWR };
-size_t 	 stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]);
+size_t 	 stenoLayerCount = ARRAY_SIZE(stenoLayers);
 #endif
 
 // Mode state