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@@ -1,5 +1,5 @@
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/*-
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- * Copyright 2012 Matthew Endsley
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+ * Copyright 2012-2018 Matthew Endsley
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* All rights reserved
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*
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* Redistribution and use in source and binary forms, with or without
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@@ -27,34 +27,37 @@
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#ifndef TINYSTL_STRING_H
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#define TINYSTL_STRING_H
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-#include <string.h> // strlen
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-#include "stddef.h"
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-#include "hash.h"
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+#include <tinystl/allocator.h>
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+#include <tinystl/stddef.h>
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+#include <tinystl/hash.h>
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namespace tinystl {
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- template<typename Alloc>
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- class stringT {
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+ template<typename Allocator>
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+ class basic_string {
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public:
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- stringT();
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- stringT(const stringT<Alloc>& other);
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- stringT(const char* sz);
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- stringT(const char* sz, size_t len);
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- ~stringT();
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+ basic_string();
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+ basic_string(const basic_string& other);
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+ basic_string(basic_string&& other);
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+ basic_string(const char* sz);
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+ basic_string(const char* sz, size_t len);
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+ ~basic_string();
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- stringT<Alloc>& operator=(const stringT<Alloc>& other);
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+ basic_string& operator=(const basic_string& other);
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+ basic_string& operator=(basic_string&& other);
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const char* c_str() const;
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size_t size() const;
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- bool empty() const;
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- void reserve(size_t _size);
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- void resize(size_t _size);
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+ void reserve(size_t size);
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+ void resize(size_t size);
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+ void clear();
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void append(const char* first, const char* last);
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- void append(const char* str);
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+ void assign(const char* s, size_t n);
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- void swap(stringT<Alloc>& other);
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+ void shrink_to_fit();
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+ void swap(basic_string& other);
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private:
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typedef char* pointer;
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@@ -66,10 +69,8 @@ namespace tinystl {
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char m_buffer[12];
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};
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- typedef stringT<TINYSTL_ALLOCATOR> string;
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-
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- template<typename Alloc>
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- inline stringT<Alloc>::stringT()
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+ template<typename allocator>
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+ inline basic_string<allocator>::basic_string()
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: m_first(m_buffer)
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, m_last(m_buffer)
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, m_capacity(m_buffer + c_nbuffer)
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@@ -77,8 +78,8 @@ namespace tinystl {
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resize(0);
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}
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- template<typename Alloc>
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- inline stringT<Alloc>::stringT(const stringT<Alloc>& other)
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+ template<typename allocator>
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+ inline basic_string<allocator>::basic_string(const basic_string& other)
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: m_first(m_buffer)
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, m_last(m_buffer)
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, m_capacity(m_buffer + c_nbuffer)
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@@ -87,8 +88,27 @@ namespace tinystl {
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append(other.m_first, other.m_last);
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}
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- template<typename Alloc>
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- inline stringT<Alloc>::stringT(const char* sz)
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+ template<typename allocator>
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+ inline basic_string<allocator>::basic_string(basic_string&& other)
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+ {
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+ if (other.m_first == other.m_buffer) {
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+ m_first = m_buffer;
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+ m_last = m_buffer;
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+ m_capacity = m_buffer + c_nbuffer;
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+ reserve(other.size());
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+ append(other.m_first, other.m_last);
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+ } else {
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+ m_first = other.m_first;
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+ m_last = other.m_last;
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+ m_capacity = other.m_capacity;
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+ }
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+ other.m_first = other.m_last = other.m_buffer;
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+ other.m_capacity = other.m_buffer + c_nbuffer;
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+ other.resize(0);
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+ }
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+
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+ template<typename allocator>
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+ inline basic_string<allocator>::basic_string(const char* sz)
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: m_first(m_buffer)
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, m_last(m_buffer)
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, m_capacity(m_buffer + c_nbuffer)
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@@ -101,8 +121,8 @@ namespace tinystl {
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append(sz, sz + len);
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}
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- template<typename Alloc>
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- inline stringT<Alloc>::stringT(const char* sz, size_t len)
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+ template<typename allocator>
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+ inline basic_string<allocator>::basic_string(const char* sz, size_t len)
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: m_first(m_buffer)
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, m_last(m_buffer)
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, m_capacity(m_buffer + c_nbuffer)
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@@ -111,68 +131,73 @@ namespace tinystl {
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append(sz, sz + len);
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}
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- template<typename Alloc>
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- inline stringT<Alloc>::~stringT() {
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+ template<typename allocator>
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+ inline basic_string<allocator>::~basic_string() {
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if (m_first != m_buffer)
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- Alloc::static_deallocate(m_first, m_capacity - m_first);
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+ allocator::static_deallocate(m_first, m_capacity - m_first);
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}
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- template<typename Alloc>
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- inline stringT<Alloc>& stringT<Alloc>::operator=(const stringT<Alloc>& other) {
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- stringT<Alloc>(other).swap(*this);
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+ template<typename allocator>
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+ inline basic_string<allocator>& basic_string<allocator>::operator=(const basic_string& other) {
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+ basic_string(other).swap(*this);
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return *this;
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}
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- template<typename Alloc>
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- inline const char* stringT<Alloc>::c_str() const {
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- return m_first;
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+ template<typename allocator>
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+ inline basic_string<allocator>& basic_string<allocator>::operator=(basic_string&& other) {
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+ basic_string(static_cast<basic_string&&>(other)).swap(*this);
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+ return *this;
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}
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- template<typename Alloc>
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- inline size_t stringT<Alloc>::size() const
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- {
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- return (size_t)(m_last - m_first);
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+ template<typename allocator>
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+ inline const char* basic_string<allocator>::c_str() const {
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+ return m_first;
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}
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- template<typename Alloc>
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- inline bool stringT<Alloc>::empty() const
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+ template<typename allocator>
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+ inline size_t basic_string<allocator>::size() const
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{
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- return 0 == size();
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+ return (size_t)(m_last - m_first);
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}
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- template<typename Alloc>
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- inline void stringT<Alloc>::reserve(size_t capacity) {
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- if (m_first + capacity + 1 <= m_capacity) {
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+ template<typename allocator>
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+ inline void basic_string<allocator>::reserve(size_t capacity) {
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+ if (m_first + capacity + 1 <= m_capacity)
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return;
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- }
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- const size_t _size = (size_t)(m_last - m_first);
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+ const size_t size = (size_t)(m_last - m_first);
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- pointer newfirst = (pointer)Alloc::static_allocate(capacity + 1);
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- for (pointer it = m_first, newit = newfirst, end = m_last; it != end; ++it, ++newit) {
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+ pointer newfirst = (pointer)allocator::static_allocate(capacity + 1);
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+ for (pointer it = m_first, newit = newfirst, end = m_last; it != end; ++it, ++newit)
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*newit = *it;
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- }
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-
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- if (m_first != m_buffer) {
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- Alloc::static_deallocate(m_first, m_capacity - m_first);
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- }
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+ if (m_first != m_buffer)
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+ allocator::static_deallocate(m_first, m_capacity - m_first);
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m_first = newfirst;
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- m_last = newfirst + _size;
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+ m_last = newfirst + size;
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m_capacity = m_first + capacity;
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}
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- template<typename Alloc>
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- inline void stringT<Alloc>::resize(size_t _size) {
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- reserve(_size);
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- for (pointer it = m_last, end = m_first + _size + 1; it < end; ++it)
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- *it = 0;
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+ template<typename allocator>
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+ inline void basic_string<allocator>::resize(size_t size) {
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+ const size_t prevSize = m_last-m_first;
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+ reserve(size);
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+ if (size > prevSize)
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+ for (pointer it = m_last, end = m_first + size + 1; it < end; ++it)
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+ *it = 0;
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+ else if (m_last != m_first)
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+ m_first[size] = 0;
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+
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+ m_last = m_first + size;
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+ }
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- m_last += _size;
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+ template<typename allocator>
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+ inline void basic_string<allocator>::clear() {
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+ resize(0);
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}
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- template<typename Alloc>
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- inline void stringT<Alloc>::append(const char* first, const char* last) {
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+ template<typename allocator>
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+ inline void basic_string<allocator>::append(const char* first, const char* last) {
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const size_t newsize = (size_t)((m_last - m_first) + (last - first) + 1);
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if (m_first + newsize > m_capacity)
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reserve((newsize * 3) / 2);
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@@ -182,13 +207,35 @@ namespace tinystl {
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*m_last = 0;
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}
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- template<typename Alloc>
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- inline void stringT<Alloc>::append(const char* str) {
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- append(str, str + strlen(str) );
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+ template<typename allocator>
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+ inline void basic_string<allocator>::assign(const char* sz, size_t n) {
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+ clear();
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+ append(sz, sz+n);
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+ }
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+
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+ template<typename allocator>
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+ inline void basic_string<allocator>::shrink_to_fit() {
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+ if (m_first == m_buffer) {
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+ } else if (m_last == m_first) {
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+ const size_t capacity = (size_t)(m_capacity - m_first);
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+ if (capacity)
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+ allocator::static_deallocate(m_first, capacity+1);
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+ m_capacity = m_first;
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+ } else if (m_capacity != m_last) {
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+ const size_t size = (size_t)(m_last - m_first);
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+ char* newfirst = (pointer)allocator::static_allocate(size+1);
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+ for (pointer in = m_first, out = newfirst; in != m_last + 1; ++in, ++out)
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+ *out = *in;
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+ if (m_first != m_capacity)
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+ allocator::static_deallocate(m_first, m_capacity+1-m_first);
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+ m_first = newfirst;
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+ m_last = newfirst+size;
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+ m_capacity = m_last;
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+ }
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}
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- template<typename Alloc>
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- inline void stringT<Alloc>::swap(stringT<Alloc>& other) {
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+ template<typename allocator>
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+ inline void basic_string<allocator>::swap(basic_string& other) {
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const pointer tfirst = m_first, tlast = m_last, tcapacity = m_capacity;
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m_first = other.m_first, m_last = other.m_last, m_capacity = other.m_capacity;
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other.m_first = tfirst, other.m_last = tlast, other.m_capacity = tcapacity;
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@@ -220,8 +267,8 @@ namespace tinystl {
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}
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}
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- template<typename Alloc>
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- inline bool operator==(const stringT<Alloc>& lhs, const stringT<Alloc>& rhs) {
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+ template<typename allocatorl, typename allocatorr>
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+ inline bool operator==(const basic_string<allocatorl>& lhs, const basic_string<allocatorr>& rhs) {
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typedef const char* pointer;
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const size_t lsize = lhs.size(), rsize = rhs.size();
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@@ -237,10 +284,12 @@ namespace tinystl {
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return true;
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}
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- template<typename Alloc>
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- static inline size_t hash(const stringT<Alloc>& value) {
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+ template<typename allocator>
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+ static inline size_t hash(const basic_string<allocator>& value) {
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return hash_string(value.c_str(), value.size());
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}
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+
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+ typedef basic_string<TINYSTL_ALLOCATOR> string;
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}
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#endif
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