windows thread stack size problem

[hjing huang <huangjingyf@…>]

bool thread::start_thread_noexcept(const attributes& attr)

{

new_thread=_beginthreadex(attr.get_security(),attr.get_stack_size(),&thread_start_function,thread_info.get(),CREATE_SUSPENDED,&thread_info->id);

}

If the STACK_SIZE_PARAM_IS_A_RESERVATION attribute is not set in createthread, stack size does not take effect