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path: root/vendor/librune/lib/builder/u8strgrow.c
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Diffstat (limited to 'vendor/librune/lib/builder/u8strgrow.c')
-rw-r--r--vendor/librune/lib/builder/u8strgrow.c41
1 files changed, 0 insertions, 41 deletions
diff --git a/vendor/librune/lib/builder/u8strgrow.c b/vendor/librune/lib/builder/u8strgrow.c
deleted file mode 100644
index 022b216..0000000
--- a/vendor/librune/lib/builder/u8strgrow.c
+++ /dev/null
@@ -1,41 +0,0 @@
-#include <stdlib.h>
-
-#include "builder.h"
-
-#include "internal/common.h"
-
-static size_t nextpow2(size_t);
-
-struct u8str *
-u8strgrow(struct u8str *b, size_t n)
-{
- if (n > b->cap) {
- b->cap = nextpow2(n);
- if (!(b->p = realloc(b->p, b->cap)))
- return nullptr;
- }
- return b;
-}
-
-size_t
-nextpow2(size_t x)
-{
-#if defined(__has_builtin) && __has_builtin(__builtin_clzl)
- x = x <= 1 ? 1 : 1 << (64 - __builtin_clzl(x - 1));
-#else
- if (x) {
- x--;
- x |= x >> 1;
- x |= x >> 2;
- x |= x >> 4;
- x |= x >> 8;
- if (sizeof(size_t) >= 4)
- x |= x >> 16;
- if (sizeof(size_t) >= 8)
- x |= x >> 32;
- }
- x++;
-#endif
-
- return x;
-}