diff options
Diffstat (limited to 'lib/libcxx/src/strstream.cpp')
| -rw-r--r-- | lib/libcxx/src/strstream.cpp | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/lib/libcxx/src/strstream.cpp b/lib/libcxx/src/strstream.cpp deleted file mode 100644 index 8b8521f76af..00000000000 --- a/lib/libcxx/src/strstream.cpp +++ /dev/null @@ -1,336 +0,0 @@ -//===------------------------ strstream.cpp -------------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is dual licensed under the MIT and the University of Illinois Open -// Source Licenses. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "strstream" -#include "algorithm" -#include "climits" -#include "cstring" -#include "cstdlib" -#include "__debug" -#include "__undef_macros" - -_LIBCPP_BEGIN_NAMESPACE_STD - -strstreambuf::strstreambuf(streamsize __alsize) - : __strmode_(__dynamic), - __alsize_(__alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ -} - -strstreambuf::strstreambuf(void* (*__palloc)(size_t), void (*__pfree)(void*)) - : __strmode_(__dynamic), - __alsize_(__default_alsize), - __palloc_(__palloc), - __pfree_(__pfree) -{ -} - -void -strstreambuf::__init(char* __gnext, streamsize __n, char* __pbeg) -{ - if (__n == 0) - __n = static_cast<streamsize>(strlen(__gnext)); - else if (__n < 0) - __n = INT_MAX; - if (__pbeg == nullptr) - setg(__gnext, __gnext, __gnext + __n); - else - { - setg(__gnext, __gnext, __pbeg); - setp(__pbeg, __pbeg + __n); - } -} - -strstreambuf::strstreambuf(char* __gnext, streamsize __n, char* __pbeg) - : __strmode_(), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(__gnext, __n, __pbeg); -} - -strstreambuf::strstreambuf(const char* __gnext, streamsize __n) - : __strmode_(__constant), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(const_cast<char *>(__gnext), __n, nullptr); -} - -strstreambuf::strstreambuf(signed char* __gnext, streamsize __n, signed char* __pbeg) - : __strmode_(), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(const_cast<char *>(reinterpret_cast<const char*>(__gnext)), __n, reinterpret_cast<char*>(__pbeg)); -} - -strstreambuf::strstreambuf(const signed char* __gnext, streamsize __n) - : __strmode_(__constant), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(const_cast<char *>(reinterpret_cast<const char*>(__gnext)), __n, nullptr); -} - -strstreambuf::strstreambuf(unsigned char* __gnext, streamsize __n, unsigned char* __pbeg) - : __strmode_(), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(const_cast<char *>(reinterpret_cast<const char*>(__gnext)), __n, reinterpret_cast<char*>(__pbeg)); -} - -strstreambuf::strstreambuf(const unsigned char* __gnext, streamsize __n) - : __strmode_(__constant), - __alsize_(__default_alsize), - __palloc_(nullptr), - __pfree_(nullptr) -{ - __init(const_cast<char *>(reinterpret_cast<const char*>(__gnext)), __n, nullptr); -} - -strstreambuf::~strstreambuf() -{ - if (eback() && (__strmode_ & __allocated) != 0 && (__strmode_ & __frozen) == 0) - { - if (__pfree_) - __pfree_(eback()); - else - delete [] eback(); - } -} - -void -strstreambuf::swap(strstreambuf& __rhs) -{ - streambuf::swap(__rhs); - _VSTD::swap(__strmode_, __rhs.__strmode_); - _VSTD::swap(__alsize_, __rhs.__alsize_); - _VSTD::swap(__palloc_, __rhs.__palloc_); - _VSTD::swap(__pfree_, __rhs.__pfree_); -} - -void -strstreambuf::freeze(bool __freezefl) -{ - if (__strmode_ & __dynamic) - { - if (__freezefl) - __strmode_ |= __frozen; - else - __strmode_ &= ~__frozen; - } -} - -char* -strstreambuf::str() -{ - if (__strmode_ & __dynamic) - __strmode_ |= __frozen; - return eback(); -} - -int -strstreambuf::pcount() const -{ - return static_cast<int>(pptr() - pbase()); -} - -strstreambuf::int_type -strstreambuf::overflow(int_type __c) -{ - if (__c == EOF) - return int_type(0); - if (pptr() == epptr()) - { - if ((__strmode_ & __dynamic) == 0 || (__strmode_ & __frozen) != 0) - return int_type(EOF); - size_t old_size = static_cast<size_t> ((epptr() ? epptr() : egptr()) - eback()); - size_t new_size = max<size_t>(static_cast<size_t>(__alsize_), 2*old_size); - if (new_size == 0) - new_size = __default_alsize; - char* buf = nullptr; - if (__palloc_) - buf = static_cast<char*>(__palloc_(new_size)); - else - buf = new char[new_size]; - if (buf == nullptr) - return int_type(EOF); - if (old_size != 0) { - _LIBCPP_ASSERT(eback(), "overflow copying from NULL"); - memcpy(buf, eback(), static_cast<size_t>(old_size)); - } - ptrdiff_t ninp = gptr() - eback(); - ptrdiff_t einp = egptr() - eback(); - ptrdiff_t nout = pptr() - pbase(); - if (__strmode_ & __allocated) - { - if (__pfree_) - __pfree_(eback()); - else - delete [] eback(); - } - setg(buf, buf + ninp, buf + einp); - setp(buf + einp, buf + new_size); - __pbump(nout); - __strmode_ |= __allocated; - } - *pptr() = static_cast<char>(__c); - pbump(1); - return int_type(static_cast<unsigned char>(__c)); -} - -strstreambuf::int_type -strstreambuf::pbackfail(int_type __c) -{ - if (eback() == gptr()) - return EOF; - if (__c == EOF) - { - gbump(-1); - return int_type(0); - } - if (__strmode_ & __constant) - { - if (gptr()[-1] == static_cast<char>(__c)) - { - gbump(-1); - return __c; - } - return EOF; - } - gbump(-1); - *gptr() = static_cast<char>(__c); - return __c; -} - -strstreambuf::int_type -strstreambuf::underflow() -{ - if (gptr() == egptr()) - { - if (egptr() >= pptr()) - return EOF; - setg(eback(), gptr(), pptr()); - } - return int_type(static_cast<unsigned char>(*gptr())); -} - -strstreambuf::pos_type -strstreambuf::seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __which) -{ - off_type __p(-1); - bool pos_in = (__which & ios::in) != 0; - bool pos_out = (__which & ios::out) != 0; - bool legal = false; - switch (__way) - { - case ios::beg: - case ios::end: - if (pos_in || pos_out) - legal = true; - break; - case ios::cur: - if (pos_in != pos_out) - legal = true; - break; - } - if (pos_in && gptr() == nullptr) - legal = false; - if (pos_out && pptr() == nullptr) - legal = false; - if (legal) - { - off_type newoff; - char* seekhigh = epptr() ? epptr() : egptr(); - switch (__way) - { - case ios::beg: - newoff = 0; - break; - case ios::cur: - newoff = (pos_in ? gptr() : pptr()) - eback(); - break; - case ios::end: - newoff = seekhigh - eback(); - break; - default: - _LIBCPP_UNREACHABLE(); - } - newoff += __off; - if (0 <= newoff && newoff <= seekhigh - eback()) - { - char* newpos = eback() + newoff; - if (pos_in) - setg(eback(), newpos, _VSTD::max(newpos, egptr())); - if (pos_out) - { - // min(pbase, newpos), newpos, epptr() - __off = epptr() - newpos; - setp(min(pbase(), newpos), epptr()); - __pbump((epptr() - pbase()) - __off); - } - __p = newoff; - } - } - return pos_type(__p); -} - -strstreambuf::pos_type -strstreambuf::seekpos(pos_type __sp, ios_base::openmode __which) -{ - off_type __p(-1); - bool pos_in = (__which & ios::in) != 0; - bool pos_out = (__which & ios::out) != 0; - if (pos_in || pos_out) - { - if (!((pos_in && gptr() == nullptr) || (pos_out && pptr() == nullptr))) - { - off_type newoff = __sp; - char* seekhigh = epptr() ? epptr() : egptr(); - if (0 <= newoff && newoff <= seekhigh - eback()) - { - char* newpos = eback() + newoff; - if (pos_in) - setg(eback(), newpos, _VSTD::max(newpos, egptr())); - if (pos_out) - { - // min(pbase, newpos), newpos, epptr() - off_type temp = epptr() - newpos; - setp(min(pbase(), newpos), epptr()); - __pbump((epptr() - pbase()) - temp); - } - __p = newoff; - } - } - } - return pos_type(__p); -} - -istrstream::~istrstream() -{ -} - -ostrstream::~ostrstream() -{ -} - -strstream::~strstream() -{ -} - -_LIBCPP_END_NAMESPACE_STD |