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Diffstat (limited to 'js/src/zydis/Zycore/Vector.c')
| -rw-r--r-- | js/src/zydis/Zycore/Vector.c | 846 |
1 files changed, 846 insertions, 0 deletions
diff --git a/js/src/zydis/Zycore/Vector.c b/js/src/zydis/Zycore/Vector.c new file mode 100644 index 0000000000..a2ef20e3e9 --- /dev/null +++ b/js/src/zydis/Zycore/Vector.c @@ -0,0 +1,846 @@ +/*************************************************************************************************** + + Zyan Core Library (Zycore-C) + + Original Author : Florian Bernd + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + +***************************************************************************************************/ + +#include "zydis/Zycore/LibC.h" +#include "zydis/Zycore/Vector.h" + +/* ============================================================================================== */ +/* Internal macros */ +/* ============================================================================================== */ + +/** + * Checks, if the passed vector should grow. + * + * @param size The desired size of the vector. + * @param capacity The current capacity of the vector. + * + * @return `ZYAN_TRUE`, if the vector should grow or `ZYAN_FALSE`, if not. + */ +#define ZYCORE_VECTOR_SHOULD_GROW(size, capacity) \ + ((size) > (capacity)) + +/** + * Checks, if the passed vector should shrink. + * + * @param size The desired size of the vector. + * @param capacity The current capacity of the vector. + * @param threshold The shrink threshold. + * + * @return `ZYAN_TRUE`, if the vector should shrink or `ZYAN_FALSE`, if not. + */ +#define ZYCORE_VECTOR_SHOULD_SHRINK(size, capacity, threshold) \ + (((threshold) != 0) && ((size) * (threshold) < (capacity))) + +/** + * Returns the offset of the element at the given `index`. + * + * @param vector A pointer to the `ZyanVector` instance. + * @param index The element index. + * + * @return The offset of the element at the given `index`. + */ +#define ZYCORE_VECTOR_OFFSET(vector, index) \ + ((void*)((ZyanU8*)(vector)->data + ((index) * (vector)->element_size))) + +/* ============================================================================================== */ +/* Internal functions */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Helper functions */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Reallocates the internal buffer of the vector. + * + * @param vector A pointer to the `ZyanVector` instance. + * @param capacity The new capacity. + * + * @return A zyan status code. + */ +static ZyanStatus ZyanVectorReallocate(ZyanVector* vector, ZyanUSize capacity) +{ + ZYAN_ASSERT(vector); + ZYAN_ASSERT(vector->capacity >= ZYAN_VECTOR_MIN_CAPACITY); + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + if (!vector->allocator) + { + if (vector->capacity < capacity) + { + return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE; + } + return ZYAN_STATUS_SUCCESS; + } + + ZYAN_ASSERT(vector->allocator); + ZYAN_ASSERT(vector->allocator->reallocate); + + if (capacity < ZYAN_VECTOR_MIN_CAPACITY) + { + if (vector->capacity > ZYAN_VECTOR_MIN_CAPACITY) + { + capacity = ZYAN_VECTOR_MIN_CAPACITY; + } else + { + return ZYAN_STATUS_SUCCESS; + } + } + + vector->capacity = capacity; + ZYAN_CHECK(vector->allocator->reallocate(vector->allocator, &vector->data, + vector->element_size, vector->capacity)); + + return ZYAN_STATUS_SUCCESS; +} + +/** + * Shifts all elements starting at the specified `index` by the amount of `count` to the left. + * + * @param vector A pointer to the `ZyanVector` instance. + * @param index The start index. + * @param count The amount of shift operations. + * + * @return A zyan status code. + */ +static ZyanStatus ZyanVectorShiftLeft(ZyanVector* vector, ZyanUSize index, ZyanUSize count) +{ + ZYAN_ASSERT(vector); + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + ZYAN_ASSERT(count > 0); + //ZYAN_ASSERT((ZyanISize)count - (ZyanISize)index + 1 >= 0); + + const void* const source = ZYCORE_VECTOR_OFFSET(vector, index + count); + void* const dest = ZYCORE_VECTOR_OFFSET(vector, index); + const ZyanUSize size = (vector->size - index - count) * vector->element_size; + ZYAN_MEMMOVE(dest, source, size); + + return ZYAN_STATUS_SUCCESS; +} + +/** + * Shifts all elements starting at the specified `index` by the amount of `count` to the right. + * + * @param vector A pointer to the `ZyanVector` instance. + * @param index The start index. + * @param count The amount of shift operations. + * + * @return A zyan status code. + */ +static ZyanStatus ZyanVectorShiftRight(ZyanVector* vector, ZyanUSize index, ZyanUSize count) +{ + ZYAN_ASSERT(vector); + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + ZYAN_ASSERT(count > 0); + ZYAN_ASSERT(vector->size + count <= vector->capacity); + + const void* const source = ZYCORE_VECTOR_OFFSET(vector, index); + void* const dest = ZYCORE_VECTOR_OFFSET(vector, index + count); + const ZyanUSize size = (vector->size - index) * vector->element_size; + ZYAN_MEMMOVE(dest, source, size); + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ +/* Exported functions */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Constructor and destructor */ +/* ---------------------------------------------------------------------------------------------- */ + +#ifndef ZYAN_NO_LIBC + +ZyanStatus ZyanVectorInit(ZyanVector* vector, ZyanUSize element_size, ZyanUSize capacity, + ZyanMemberProcedure destructor) +{ + return ZyanVectorInitEx(vector, element_size, capacity, destructor, ZyanAllocatorDefault(), + ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR, ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD); +} + +#endif // ZYAN_NO_LIBC + +ZyanStatus ZyanVectorInitEx(ZyanVector* vector, ZyanUSize element_size, ZyanUSize capacity, + ZyanMemberProcedure destructor, ZyanAllocator* allocator, ZyanU8 growth_factor, + ZyanU8 shrink_threshold) +{ + if (!vector || !element_size || !allocator || (growth_factor < 1)) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + ZYAN_ASSERT(allocator->allocate); + + vector->allocator = allocator; + vector->growth_factor = growth_factor; + vector->shrink_threshold = shrink_threshold; + vector->size = 0; + vector->capacity = ZYAN_MAX(ZYAN_VECTOR_MIN_CAPACITY, capacity); + vector->element_size = element_size; + vector->destructor = destructor; + vector->data = ZYAN_NULL; + + return allocator->allocate(vector->allocator, &vector->data, vector->element_size, + vector->capacity); +} + +ZyanStatus ZyanVectorInitCustomBuffer(ZyanVector* vector, ZyanUSize element_size, + void* buffer, ZyanUSize capacity, ZyanMemberProcedure destructor) +{ + if (!vector || !element_size || !buffer || !capacity) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + vector->allocator = ZYAN_NULL; + vector->growth_factor = 1; + vector->shrink_threshold = 0; + vector->size = 0; + vector->capacity = capacity; + vector->element_size = element_size; + vector->destructor = destructor; + vector->data = buffer; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorDestroy(ZyanVector* vector) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + if (vector->destructor) + { + for (ZyanUSize i = 0; i < vector->size; ++i) + { + vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i)); + } + } + + if (vector->allocator && vector->capacity) + { + ZYAN_ASSERT(vector->allocator->deallocate); + ZYAN_CHECK(vector->allocator->deallocate(vector->allocator, vector->data, + vector->element_size, vector->capacity)); + } + + vector->data = ZYAN_NULL; + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Duplication */ +/* ---------------------------------------------------------------------------------------------- */ + +#ifndef ZYAN_NO_LIBC + +ZyanStatus ZyanVectorDuplicate(ZyanVector* destination, const ZyanVector* source, + ZyanUSize capacity) +{ + return ZyanVectorDuplicateEx(destination, source, capacity, ZyanAllocatorDefault(), + ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR, ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD); +} + +#endif // ZYAN_NO_LIBC + +ZyanStatus ZyanVectorDuplicateEx(ZyanVector* destination, const ZyanVector* source, + ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold) +{ + if (!source) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + const ZyanUSize len = source->size; + + capacity = ZYAN_MAX(capacity, len); + ZYAN_CHECK(ZyanVectorInitEx(destination, source->element_size, capacity, source->destructor, + allocator, growth_factor, shrink_threshold)); + ZYAN_ASSERT(destination->capacity >= len); + + ZYAN_MEMCPY(destination->data, source->data, len * source->element_size); + destination->size = len; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorDuplicateCustomBuffer(ZyanVector* destination, const ZyanVector* source, + void* buffer, ZyanUSize capacity) +{ + if (!source) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + const ZyanUSize len = source->size; + + if (capacity < len) + { + return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE; + } + + ZYAN_CHECK(ZyanVectorInitCustomBuffer(destination, source->element_size, buffer, capacity, + source->destructor)); + ZYAN_ASSERT(destination->capacity >= len); + + ZYAN_MEMCPY(destination->data, source->data, len * source->element_size); + destination->size = len; + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Element access */ +/* ---------------------------------------------------------------------------------------------- */ + +const void* ZyanVectorGet(const ZyanVector* vector, ZyanUSize index) +{ + if (!vector || (index >= vector->size)) + { + return ZYAN_NULL; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + return ZYCORE_VECTOR_OFFSET(vector, index); +} + +void* ZyanVectorGetMutable(const ZyanVector* vector, ZyanUSize index) +{ + if (!vector || (index >= vector->size)) + { + return ZYAN_NULL; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + return ZYCORE_VECTOR_OFFSET(vector, index); +} + +ZyanStatus ZyanVectorGetPointer(const ZyanVector* vector, ZyanUSize index, const void** value) +{ + if (!vector || !value) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index >= vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + *value = (const void*)ZYCORE_VECTOR_OFFSET(vector, index); + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorGetPointerMutable(const ZyanVector* vector, ZyanUSize index, void** value) +{ + if (!vector || !value) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index >= vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + *value = ZYCORE_VECTOR_OFFSET(vector, index); + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorSet(ZyanVector* vector, ZyanUSize index, const void* value) +{ + if (!vector || !value) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index >= vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + void* const offset = ZYCORE_VECTOR_OFFSET(vector, index); + if (vector->destructor) + { + vector->destructor(offset); + } + ZYAN_MEMCPY(offset, value, vector->element_size); + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Insertion */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorPushBack(ZyanVector* vector, const void* element) +{ + if (!vector || !element) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + 1, vector->capacity)) + { + ZYAN_CHECK(ZyanVectorReallocate(vector, + ZYAN_MAX(1, (ZyanUSize)((vector->size + 1) * vector->growth_factor)))); + } + + void* const offset = ZYCORE_VECTOR_OFFSET(vector, vector->size); + ZYAN_MEMCPY(offset, element, vector->element_size); + + ++vector->size; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorInsert(ZyanVector* vector, ZyanUSize index, const void* element) +{ + return ZyanVectorInsertRange(vector, index, element, 1); +} + +ZyanStatus ZyanVectorInsertRange(ZyanVector* vector, ZyanUSize index, const void* elements, + ZyanUSize count) +{ + if (!vector || !elements || !count) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index > vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + count, vector->capacity)) + { + ZYAN_CHECK(ZyanVectorReallocate(vector, + ZYAN_MAX(1, (ZyanUSize)((vector->size + count) * vector->growth_factor)))); + } + + if (index < vector->size) + { + ZYAN_CHECK(ZyanVectorShiftRight(vector, index, count)); + } + + void* const offset = ZYCORE_VECTOR_OFFSET(vector, index); + ZYAN_MEMCPY(offset, elements, count * vector->element_size); + vector->size += count; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorEmplace(ZyanVector* vector, void** element, ZyanMemberFunction constructor) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + return ZyanVectorEmplaceEx(vector, vector->size, element, constructor); +} + +ZyanStatus ZyanVectorEmplaceEx(ZyanVector* vector, ZyanUSize index, void** element, + ZyanMemberFunction constructor) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index > vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + 1, vector->capacity)) + { + ZYAN_CHECK(ZyanVectorReallocate(vector, + ZYAN_MAX(1, (ZyanUSize)((vector->size + 1) * vector->growth_factor)))); + } + + if (index < vector->size) + { + ZYAN_CHECK(ZyanVectorShiftRight(vector, index, 1)); + } + + *element = ZYCORE_VECTOR_OFFSET(vector, index); + if (constructor) + { + ZYAN_CHECK(constructor(*element)); + } + + ++vector->size; + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Utils */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorSwapElements(ZyanVector* vector, ZyanUSize index_first, ZyanUSize index_second) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if ((index_first >= vector->size) || (index_second >= vector->size)) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + if (vector->size == vector->capacity) + { + return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + ZyanU64* const t = ZYCORE_VECTOR_OFFSET(vector, vector->size); + ZyanU64* const a = ZYCORE_VECTOR_OFFSET(vector, index_first); + ZyanU64* const b = ZYCORE_VECTOR_OFFSET(vector, index_second); + ZYAN_MEMCPY(t, a, vector->element_size); + ZYAN_MEMCPY(a, b, vector->element_size); + ZYAN_MEMCPY(b, t, vector->element_size); + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Deletion */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorDelete(ZyanVector* vector, ZyanUSize index) +{ + return ZyanVectorDeleteRange(vector, index, 1); +} + +ZyanStatus ZyanVectorDeleteRange(ZyanVector* vector, ZyanUSize index, ZyanUSize count) +{ + if (!vector || !count) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (index + count > vector->size) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + if (vector->destructor) + { + for (ZyanUSize i = index; i < index + count; ++i) + { + vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i)); + } + } + + if (index + count < vector->size) + { + ZYAN_CHECK(ZyanVectorShiftLeft(vector, index, count)); + } + + vector->size -= count; + if (ZYCORE_VECTOR_SHOULD_SHRINK(vector->size, vector->capacity, vector->shrink_threshold)) + { + return ZyanVectorReallocate(vector, + ZYAN_MAX(1, (ZyanUSize)(vector->size * vector->growth_factor))); + } + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorPopBack(ZyanVector* vector) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (vector->size == 0) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + if (vector->destructor) + { + vector->destructor(ZYCORE_VECTOR_OFFSET(vector, vector->size - 1)); + } + + --vector->size; + if (ZYCORE_VECTOR_SHOULD_SHRINK(vector->size, vector->capacity, vector->shrink_threshold)) + { + return ZyanVectorReallocate(vector, + ZYAN_MAX(1, (ZyanUSize)(vector->size * vector->growth_factor))); + } + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorClear(ZyanVector* vector) +{ + return ZyanVectorResizeEx(vector, 0, ZYAN_NULL); +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Searching */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorFind(const ZyanVector* vector, const void* element, ZyanISize* found_index, + ZyanEqualityComparison comparison) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + return ZyanVectorFindEx(vector, element, found_index, comparison, 0, vector->size); +} + +ZyanStatus ZyanVectorFindEx(const ZyanVector* vector, const void* element, ZyanISize* found_index, + ZyanEqualityComparison comparison, ZyanUSize index, ZyanUSize count) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if ((index + count > vector->size) || (index == vector->size)) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + if (!count) + { + *found_index = -1; + return ZYAN_STATUS_FALSE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + for (ZyanUSize i = index; i < index + count; ++i) + { + if (comparison(ZYCORE_VECTOR_OFFSET(vector, i), element)) + { + *found_index = i; + return ZYAN_STATUS_TRUE; + } + } + + *found_index = -1; + return ZYAN_STATUS_FALSE; +} + +ZyanStatus ZyanVectorBinarySearch(const ZyanVector* vector, const void* element, + ZyanUSize* found_index, ZyanComparison comparison) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + return ZyanVectorBinarySearchEx(vector, element, found_index, comparison, 0, vector->size); +} + +ZyanStatus ZyanVectorBinarySearchEx(const ZyanVector* vector, const void* element, + ZyanUSize* found_index, ZyanComparison comparison, ZyanUSize index, ZyanUSize count) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (((index >= vector->size) && (count > 0)) || (index + count > vector->size)) + { + return ZYAN_STATUS_OUT_OF_RANGE; + } + + if (!count) + { + *found_index = index; + return ZYAN_STATUS_FALSE; + } + + ZYAN_ASSERT(vector->element_size); + ZYAN_ASSERT(vector->data); + + ZyanStatus status = ZYAN_STATUS_FALSE; + ZyanISize l = index; + ZyanISize h = index + count - 1; + while (l <= h) + { + const ZyanUSize mid = l + ((h - l) >> 1); + const ZyanI32 cmp = comparison(ZYCORE_VECTOR_OFFSET(vector, mid), element); + if (cmp < 0) + { + l = mid + 1; + } else + { + h = mid - 1; + if (cmp == 0) + { + status = ZYAN_STATUS_TRUE; + } + } + } + + *found_index = l; + return status; +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Memory management */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorResize(ZyanVector* vector, ZyanUSize size) +{ + return ZyanVectorResizeEx(vector, size, ZYAN_NULL); +} + +ZyanStatus ZyanVectorResizeEx(ZyanVector* vector, ZyanUSize size, const void* initializer) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + if (size == vector->size) + { + return ZYAN_STATUS_SUCCESS; + } + + if (vector->destructor && (size < vector->size)) + { + for (ZyanUSize i = size; i < vector->size; ++i) + { + vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i)); + } + } + + if (ZYCORE_VECTOR_SHOULD_GROW(size, vector->capacity) || + ZYCORE_VECTOR_SHOULD_SHRINK(size, vector->capacity, vector->shrink_threshold)) + { + ZYAN_ASSERT(vector->growth_factor >= 1); + ZYAN_CHECK(ZyanVectorReallocate(vector, (ZyanUSize)(size * vector->growth_factor))); + } + + if (initializer && (size > vector->size)) + { + for (ZyanUSize i = vector->size; i < size; ++i) + { + ZYAN_MEMCPY(ZYCORE_VECTOR_OFFSET(vector, i), initializer, vector->element_size); + } + } + + vector->size = size; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorReserve(ZyanVector* vector, ZyanUSize capacity) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + if (capacity > vector->capacity) + { + ZYAN_CHECK(ZyanVectorReallocate(vector, capacity)); + } + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorShrinkToFit(ZyanVector* vector) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + return ZyanVectorReallocate(vector, vector->size); +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Information */ +/* ---------------------------------------------------------------------------------------------- */ + +ZyanStatus ZyanVectorGetCapacity(const ZyanVector* vector, ZyanUSize* capacity) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + *capacity = vector->capacity; + + return ZYAN_STATUS_SUCCESS; +} + +ZyanStatus ZyanVectorGetSize(const ZyanVector* vector, ZyanUSize* size) +{ + if (!vector) + { + return ZYAN_STATUS_INVALID_ARGUMENT; + } + + *size = vector->size; + + return ZYAN_STATUS_SUCCESS; +} + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ |