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shring stack on element removal

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This commit is contained in:
Alessandro Mauri 2023-01-23 00:45:44 +01:00
parent c9dc5f5807
commit 8610e225f7
Signed by: alema
GPG Key ID: 2B7BF9531FF03BE8
1 changed files with 9 additions and 1 deletions
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ugui.c
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@ -86,6 +86,8 @@ static ug_style_t style_cache = {0};
} }
// delete all items that have the same id from the stack, also shrink it if the total
// number of items is less than a third of the capacity
#define DELETE_FROM_STACK(S, c) \ #define DELETE_FROM_STACK(S, c) \
{ \ { \
for (int i = 0; i < S.idx; i++) { \ for (int i = 0; i < S.idx; i++) { \
@ -94,7 +96,13 @@ static ug_style_t style_cache = {0};
memmove(&S.items[i], &S.items[i+1], (S.idx-i)*sizeof(S.items[0])); \ memmove(&S.items[i], &S.items[i+1], (S.idx-i)*sizeof(S.items[0])); \
memset(&S.items[S.idx--], 0, sizeof(S.items[0])); \ memset(&S.items[S.idx--], 0, sizeof(S.items[0])); \
} \ } \
} if (S.size > STACK_STEP && S.idx*3 < S.size) { \
S.items = realloc(S.items, (S.size-STACK_STEP)*sizeof(*(S.items))); \
if(!S.items) \
UG_ERR("Could not allocate stack #S: %s", strerror(errno)); \
S.size -= STACK_STEP; \
} \
} \
#define RESET_STACK(S) \ #define RESET_STACK(S) \