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refactor: add pure attribute to pure functions (#18165)

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This will allow the compilers that support the pure attribute to make
further optimizations.
This commit is contained in:
dundargoc
2022-04-25 04:12:47 +02:00
committed by GitHub
parent 933274c438
commit c582194135
9 changed files with 53 additions and 12 deletions
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15
src/nvim/mbyte.c
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@@ -334,10 +334,9 @@ enc_alias_table[] =
* Returns -1 if not found.
*/
static int enc_canon_search(const char_u *name)
FUNC_ATTR_PURE
{
int i;
for (i = 0; i < IDX_COUNT; ++i) {
for (int i = 0; i < IDX_COUNT; i++) {
if (STRCMP(name, enc_canon_table[i].name) == 0) {
return i;
}
@@ -351,10 +350,9 @@ static int enc_canon_search(const char_u *name)
* Returns 0 if not found.
*/
int enc_canon_props(const char_u *name)
FUNC_ATTR_PURE
{
int i;
i = enc_canon_search(name);
int i = enc_canon_search(name);
if (i >= 0) {
return enc_canon_table[i].prop;
} else if (STRNCMP(name, "2byte-", 6) == 0) {
@@ -373,6 +371,7 @@ int enc_canon_props(const char_u *name)
* 3 - UTF-8 BOM
*/
int bomb_size(void)
FUNC_ATTR_PURE
{
int n = 0;
@@ -414,11 +413,13 @@ void remove_bom(char_u *s)
* >2 for other word characters
*/
int mb_get_class(const char_u *p)
FUNC_ATTR_PURE
{
return mb_get_class_tab(p, curbuf->b_chartab);
}
int mb_get_class_tab(const char_u *p, const uint64_t *const chartab)
FUNC_ATTR_PURE
{
if (MB_BYTE2LEN(p[0]) == 1) {
if (p[0] == NUL || ascii_iswhite(p[0])) {
@@ -436,6 +437,7 @@ int mb_get_class_tab(const char_u *p, const uint64_t *const chartab)
* Return true if "c" is in "table".
*/
static bool intable(const struct interval *table, size_t n_items, int c)
FUNC_ATTR_PURE
{
int mid, bot, top;
@@ -1087,6 +1089,7 @@ int utf_class(const int c)
}
int utf_class_tab(const int c, const uint64_t *const chartab)
FUNC_ATTR_PURE
{
// sorted list of non-overlapping intervals
static struct clinterval {