cosmopolitan/ctl/uninitialized_fill.h

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// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
#ifndef CTL_UNINITIALIZED_FILL_H_
#define CTL_UNINITIALIZED_FILL_H_
#include "addressof.h"
#include "iterator_traits.h"
namespace ctl {
template<typename ForwardIt, typename T>
void
uninitialized_fill(ForwardIt first, ForwardIt last, const T& value)
{
using ValueType = typename ctl::iterator_traits<ForwardIt>::value_type;
ForwardIt current = first;
try {
for (; current != last; ++current)
::new (static_cast<void*>(ctl::addressof(*current)))
ValueType(value);
} catch (...) {
for (; first != current; ++first)
first->~ValueType();
throw;
}
}
} // namespace ctl
#endif // CTL_UNINITIALIZED_FILL_H_