This commit is contained in:
gabime 2014-05-11 03:07:21 +03:00
parent ff0d313936
commit 4207c40786
3 changed files with 33 additions and 33 deletions

View File

@ -16,7 +16,7 @@ using namespace utils;
int main(int argc, char* argv[])
{
details::stack_buf<12> a;
details::stack_buf<12> a;
const unsigned int howmany = argc <= 1 ? 1000000:atoi(argv[1]);

View File

@ -14,7 +14,7 @@ class stack_devicebuf :public std::streambuf
{
public:
using Base = std::streambuf;
using stackbuf = stack_buf<192>;
using stackbuf = stack_buf<192>;
stack_devicebuf() = default;
~stack_devicebuf() = default;
stack_devicebuf& operator=(const stack_devicebuf&) = delete;

View File

@ -15,18 +15,18 @@ template<unsigned short STACK_SIZE>
class stack_buf
{
public:
using bufpair_t = std::pair<const char*, std::size_t>;
using iterator = char const*;
static constexpr unsigned short stack_size = STACK_SIZE;
using bufpair_t = std::pair<const char*, std::size_t>;
using iterator = char const*;
static constexpr unsigned short stack_size = STACK_SIZE;
stack_buf() :_v(), _stack_size(0) {}
~stack_buf() = default;
stack_buf& operator=(const stack_buf& other) = delete;
stack_buf(const stack_buf& other):stack_buf(other, delegate_copy_move{})
stack_buf(const stack_buf& other):stack_buf(other, delegate_copy_move {})
{}
stack_buf(stack_buf&& other):stack_buf(other, delegate_copy_move{})
stack_buf(stack_buf&& other):stack_buf(other, delegate_copy_move {})
{
other.clear();
}
@ -50,7 +50,7 @@ public:
else
{
_v.reserve(_stack_size + buf_size);
_v.insert(_v.end(), _stack_array.begin(), _stack_array.begin() + _stack_size);
_v.insert(_v.end(), _stack_array.begin(), _stack_array.begin() + _stack_size);
_v.insert(_v.end(), buf, buf + buf_size);
}
}
@ -71,38 +71,38 @@ public:
return bufpair_t(_stack_array.data(), _stack_size);
}
iterator begin() const
{
return get().first;
}
iterator begin() const
{
return get().first;
}
iterator end() const
{
bufpair_t bpair = get();
return bpair.first + bpair.second;
}
iterator end() const
{
bufpair_t bpair = get();
return bpair.first + bpair.second;
}
std::size_t size() const
{
return get().second;
return get().second;
}
private:
struct delegate_copy_move {};
template<class T1>
stack_buf(T1&& other, delegate_copy_move)
{
_stack_size = other._stack_size;
struct delegate_copy_move {};
template<class T1>
stack_buf(T1&& other, delegate_copy_move)
{
_stack_size = other._stack_size;
if (other.vector_used())
_v = std::forward<T1>(other)._v;
else
std::copy_n(other._stack_array.begin(), other._stack_size, _stack_array.begin());
}
inline bool vector_used() const
{
return !(_v.empty());
}
inline bool vector_used() const
{
return !(_v.empty());
}
std::vector<char> _v;
std::array<char, STACK_SIZE> _stack_array;