21#ifdef _STLP_USE_UNIX_IO
23#elif defined(_STLP_USE_STDIO_IO)
25#elif defined(_STLP_USE_WIN32_IO)
28# error "Can't recognize IO scheme to use"
34#define MMAP_CHUNK 0x100000L
42 if (!__this->_M_in_input_mode) {
43 if (!__this->_M_switch_to_input_mode())
44 return traits_type::eof();
46 else if (__this->_M_in_putback_mode) {
47 __this->_M_exit_putback_mode();
48 if (__this->gptr() != __this->egptr()) {
49 int_type __c = traits_type::to_int_type(*__this->gptr());
57 if (__this->_M_base.__regular_file()
58 && __this->_M_always_noconv
59 && __this->_M_base._M_in_binary_mode()) {
61 if (__this->_M_mmap_base)
62 __this->_M_base._M_unmap(__this->_M_mmap_base, __this->_M_mmap_len);
66 streamoff __cur = __this->_M_base._M_seek(0, ios_base::cur);
67 streamoff __size = __this->_M_base._M_file_size();
68 if (__size > 0 && __cur >= 0 && __cur < __size) {
69 streamoff __offset = (__cur / __this->_M_base.__page_size()) * __this->_M_base.__page_size();
72 __this->_M_mmap_len = __size - __offset;
77 if ((__this->_M_mmap_base = __this->_M_base._M_mmap(__offset, __this->_M_mmap_len)) != 0) {
81 return traits_type::to_int_type(*__this->gptr());
84 __this->_M_mmap_len = 0;
87 __this->_M_mmap_base = 0;
88 __this->_M_mmap_len = 0;
92 return __this->_M_underflow_aux();
97#if !defined(_STLP_NO_FORCE_INSTANTIATE)
104# if !defined (_STLP_NO_WCHAR_T)
char_traits< char >::int_type int_type
__kernel_ptrdiff_t ptrdiff_t
#define __STATIC_CAST(__x, __y)
#define _STLP_BEGIN_NAMESPACE
#define _STLP_END_NAMESPACE