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[vector] Add sorted template argument

This commit is contained in:
Behdad Esfahbod 2022-01-19 11:32:14 -07:00
parent cd9799784c
commit 294d50ff35
1 changed files with 22 additions and 2 deletions
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24
src/hb-vector.hh
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@ -32,8 +32,9 @@
#include "hb-null.hh" #include "hb-null.hh"
template <typename Type> template <typename Type,
struct hb_vector_t bool sorted=false>
struct hb_vector_t : std::conditional<sorted, hb_vector_t<Type, false>, hb_empty_t>::type
{ {
typedef Type item_t; typedef Type item_t;
static constexpr unsigned item_size = hb_static_size (Type); static constexpr unsigned item_size = hb_static_size (Type);
@ -362,11 +363,14 @@ struct hb_vector_t
shrink_vector (size); shrink_vector (size);
} }
/* Sorting API. */
void qsort (int (*cmp)(const void*, const void*)) void qsort (int (*cmp)(const void*, const void*))
{ as_array ().qsort (cmp); } { as_array ().qsort (cmp); }
void qsort (unsigned int start = 0, unsigned int end = (unsigned int) -1) void qsort (unsigned int start = 0, unsigned int end = (unsigned int) -1)
{ as_array ().qsort (start, end); } { as_array ().qsort (start, end); }
/* Unsorted search API. */
template <typename T> template <typename T>
Type *lsearch (const T &x, Type *not_found = nullptr) Type *lsearch (const T &x, Type *not_found = nullptr)
{ return as_array ().lsearch (x, not_found); } { return as_array ().lsearch (x, not_found); }
@ -376,6 +380,22 @@ struct hb_vector_t
template <typename T> template <typename T>
bool lfind (const T &x, unsigned *pos = nullptr) const bool lfind (const T &x, unsigned *pos = nullptr) const
{ return as_array ().lfind (x, pos); } { return as_array ().lfind (x, pos); }
/* Sorted search API. */
template <typename T,
bool Sorted=sorted, hb_enable_if (Sorted)>
Type *bsearch (const T &x, Type *not_found = nullptr)
{ return as_array ().bsearch (x, not_found); }
template <typename T,
bool Sorted=sorted, hb_enable_if (Sorted)>
const Type *bsearch (const T &x, const Type *not_found = nullptr) const
{ return as_array ().bsearch (x, not_found); }
template <typename T,
bool Sorted=sorted, hb_enable_if (Sorted)>
bool bfind (const T &x, unsigned int *i = nullptr,
hb_not_found_t not_found = HB_NOT_FOUND_DONT_STORE,
unsigned int to_store = (unsigned int) -1) const
{ return as_array ().bfind (x, i, not_found, to_store); }
}; };
template <typename Type> template <typename Type>