qmk_firmware/users/davidkristoffersen/util/functions.c
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>
2022-08-30 10:20:04 +02:00

111 lines
2.6 KiB
C

// Copyright 2022 David Kristoffersen (@davidkristoffersen)
// SPDX-License-Identifier: GPL-3.0-or-later
#include "functions.h"
#ifndef NO_SPECIAL_SHIFT
// Code set to swap struct
typedef struct code_set {
uint16_t pre;
uint16_t post;
} code_set_t;
// Shift codes conversion struct
typedef struct shift_code {
int lang;
int size;
code_set_t* codes;
} shift_code_t;
#ifdef LAYER_NO
code_set_t NO_SHIFT_CODES [] = {
{NO_QUOT, NO_DQUO},
{NO_BSLS, NO_PIPE},
};
#endif
code_set_t EN_SHIFT_CODES [] = {
{KC_COMM, KC_SCLN},
{KC_DOT, KC_COLN},
};
// Array of shift code conversions
const shift_code_t SHIFT_CODES [] = {
#ifdef LAYER_NO
{.lang = LAYER_NO,
.size = ARRAY_SIZE(NO_SHIFT_CODES),
.codes = NO_SHIFT_CODES},
#endif
{.lang = LAYER_EN,
.size = ARRAY_SIZE(EN_SHIFT_CODES),
.codes = EN_SHIFT_CODES},
};
const int SHIFT_CODES_SIZE = ARRAY_SIZE(SHIFT_CODES);
#endif
#ifdef LAYER_NO
// Array of English to Norwegian code translations
const code_set_t EN2NO_CODES [] = {
{KC_QUOT, NO_QUOT},
{KC_MINS, NO_MINS},
{KC_BSLS, NO_BSLS},
{KC_LBRC, NO_LBRC},
{KC_LCBR, NO_LCBR},
{KC_LPRN, NO_LPRN},
{KC_LT, NO_LESS},
{KC_GT, NO_GRTR},
{KC_RPRN, NO_RPRN},
{KC_RCBR, NO_RCBR},
{KC_RBRC, NO_RBRC},
{KC_AMPR, NO_AMPR},
{KC_EQL, NO_EQL},
{KC_PLUS, NO_PLUS},
{KC_ASTR, NO_ASTR},
{KC_SLSH, NO_SLSH},
{KC_TILD, NO_TILD},
{KC_AE, NO_AE},
{KC_OE, NO_OE},
{KC_AA, NO_AA},
{KC_QUES, NO_QUES},
{KC_AT, NO_AT},
{KC_CIRC, NO_CIRC},
{KC_DLR, NO_DLR},
{KC_GRV, NO_GRV}
};
const int EN2NO_CODES_SIZE = ARRAY_SIZE(EN2NO_CODES);
#endif
// Check if layer is an active default layer
bool is_default_on(int layer) {
return layer == LAYER_DEFAULT
? true
: layer_state_cmp(default_layer_state, layer);
}
#ifndef NO_SPECIAL_SHIFT
// Get special shifted code
uint16_t get_special_shifted_code(uint16_t keycode) {
for (int i = 0; i < SHIFT_CODES_SIZE; i++) {
if (IS_DEFAULT_OFF(SHIFT_CODES[i].lang)) continue;
for (int j = 0; j < SHIFT_CODES[i].size; j++) {
if (keycode == SHIFT_CODES[i].codes[j].pre)
return SHIFT_CODES[i].codes[j].post;
}
}
return keycode;
}
#endif
#ifdef LAYER_NO
// Get language specific code
uint16_t get_norwegian_code(uint16_t keycode) {
if (IS_DEFAULT_ON(LAYER_NO)) {
for (int i = 0; i < EN2NO_CODES_SIZE; i++) {
if (keycode == EN2NO_CODES[i].pre) {
return EN2NO_CODES[i].post;
}
}
}
return keycode;
}
#endif