n>                             <a class="link" href="basic_environment/const_entry_type.html#boost.process.basic_environment.const_entry_type.value_type"><span class="identifier">value_type</span></a><span class="special">;</span>   
    <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">*</span>               <a class="link" href="basic_environment/const_entry_type.html#boost.process.basic_environment.const_entry_type.poi