3 * Silicon Graphics Computer Systems, Inc.
8 * This material is provided "as is", with absolutely no warranty expressed
9 * or implied. Any use is at your own risk.
11 * Permission to use or copy this software for any purpose is hereby granted
12 * without fee, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
18 #ifndef _STLP_OSTREAM_C
19 #define _STLP_OSTREAM_C
21 #ifndef _STLP_INTERNAL_OSTREAM_H
22 # include <stl/_ostream.h>
25 #if !defined (_STLP_INTERNAL_NUM_PUT_H)
26 # include <stl/_num_put.h> // For basic_streambuf and iterators
31 //----------------------------------------------------------------------
32 // Definitions of non-inline member functions.
34 // Constructor, destructor
36 template <class _CharT, class _Traits>
37 basic_ostream<_CharT, _Traits>::basic_ostream(basic_streambuf<_CharT, _Traits>* __buf)
38 : basic_ios<_CharT, _Traits>() {
42 template <class _CharT, class _Traits>
43 basic_ostream<_CharT, _Traits>::~basic_ostream()
46 // Output directly from a streambuf.
47 template <class _CharT, class _Traits>
48 basic_ostream<_CharT, _Traits>&
49 basic_ostream<_CharT, _Traits>::operator<<(basic_streambuf<_CharT, _Traits>* __from) {
50 sentry __sentry(*this);
53 bool __any_inserted = __from->gptr() != __from->egptr()
54 ? this->_M_copy_buffered(__from, this->rdbuf())
55 : this->_M_copy_unbuffered(__from, this->rdbuf());
57 this->setstate(ios_base::failbit);
60 this->setstate(ios_base::badbit);
66 // Helper functions for the streambuf version of operator<<. The
67 // exception-handling code is complicated because exceptions thrown
68 // while extracting characters are treated differently than exceptions
69 // thrown while inserting characters.
71 template <class _CharT, class _Traits>
72 bool basic_ostream<_CharT, _Traits>
73 ::_M_copy_buffered(basic_streambuf<_CharT, _Traits>* __from,
74 basic_streambuf<_CharT, _Traits>* __to) {
75 bool __any_inserted = false;
77 while (__from->egptr() != __from->gptr()) {
78 const ptrdiff_t __avail = __from->egptr() - __from->gptr();
80 streamsize __nwritten;
82 __nwritten = __to->sputn(__from->gptr(), __avail);
83 __from->gbump((int)__nwritten);
86 this->_M_handle_exception(ios_base::badbit);
87 return __any_inserted;
90 if (__nwritten == __avail) {
92 if (this->_S_eof(__from->sgetc()))
95 __any_inserted = true;
98 this->_M_handle_exception(ios_base::failbit);
102 else if (__nwritten != 0)
105 return __any_inserted;
108 // No characters are in the buffer, but we aren't at EOF. Switch to
110 return __any_inserted || this->_M_copy_unbuffered(__from, __to);
114 * Helper struct (guard) to put back a character in a streambuf
115 * whenever an exception or an eof occur.
117 template <class _CharT, class _Traits>
119 typedef basic_streambuf<_CharT, _Traits> _StreamBuf;
120 typedef typename _StreamBuf::int_type int_type;
121 _SPutBackC(_StreamBuf *pfrom)
122 : __pfrom(pfrom), __c(0), __do_guard(false) {}
125 __pfrom->sputbackc(_Traits::to_char_type(__c));
129 void guard(int_type c) {
143 template <class _CharT, class _Traits>
144 bool basic_ostream<_CharT, _Traits>
145 ::_M_copy_unbuffered(basic_streambuf<_CharT, _Traits>* __from,
146 basic_streambuf<_CharT, _Traits>* __to) {
147 typedef _SPutBackC<_CharT, _Traits> _SPutBackCGuard;
148 bool __any_inserted = false;
152 _SPutBackCGuard __cguard(__from);
155 __c = __from->sbumpc();
158 this->_M_handle_exception(ios_base::failbit);
159 return __any_inserted;
162 if ( this->_S_eof(__c) )
163 return __any_inserted;
166 if ( this->_S_eof( __to->sputc(_Traits::to_char_type(__c)) ) ) {
167 return __any_inserted;
171 __any_inserted = true;
175 this->_M_handle_exception(ios_base::badbit);
176 return __any_inserted;
180 _STLP_MOVE_TO_PRIV_NAMESPACE
182 // Helper function for numeric output.
183 template <class _CharT, class _Traits, class _Number>
184 basic_ostream<_CharT, _Traits>& _STLP_CALL
185 __put_num(basic_ostream<_CharT, _Traits>& __os, _Number __x) {
186 typedef typename basic_ostream<_CharT, _Traits>::sentry _Sentry;
187 _Sentry __sentry(__os);
188 bool __failed = true;
192 typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> > _NumPut;
193 __failed = (use_facet<_NumPut>(__os.getloc())).put(ostreambuf_iterator<_CharT, _Traits>(__os.rdbuf()),
198 __os._M_handle_exception(ios_base::badbit);
202 __os.setstate(ios_base::badbit);
206 _STLP_MOVE_TO_STD_NAMESPACE
209 * In the following operators we try to limit code bloat by limiting the
210 * number of __put_num instanciations.
212 template <class _CharT, class _Traits>
213 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(short __x) {
214 _STLP_STATIC_ASSERT( sizeof(short) <= sizeof(long) )
215 long __tmp = ((this->flags() & _Basic_ios::basefield) != ios_base::dec) ?
216 __STATIC_CAST(long, __STATIC_CAST(unsigned short, __x)): __x;
217 return _STLP_PRIV __put_num(*this, __tmp);
220 template <class _CharT, class _Traits>
221 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(unsigned short __x) {
222 _STLP_STATIC_ASSERT( sizeof(unsigned short) <= sizeof(unsigned long) )
223 return _STLP_PRIV __put_num(*this, __STATIC_CAST(unsigned long,__x));
226 template <class _CharT, class _Traits>
227 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(int __x) {
228 _STLP_STATIC_ASSERT( sizeof(int) <= sizeof(long) )
229 long __tmp = ((this->flags() & _Basic_ios::basefield) != ios_base::dec) ?
230 __STATIC_CAST(long, __STATIC_CAST(unsigned int, __x)): __x;
231 return _STLP_PRIV __put_num(*this, __tmp);
234 template <class _CharT, class _Traits>
235 #if defined (_WIN64) || !defined (_STLP_MSVC) || (_STLP_MSVC < 1300)
236 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(unsigned int __x) {
237 _STLP_STATIC_ASSERT( sizeof(unsigned int) <= sizeof(unsigned long) )
239 /* We define this operator with size_t rather than unsigned int to avoid
242 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(size_t __x) {
243 _STLP_STATIC_ASSERT( sizeof(size_t) <= sizeof(unsigned long) )
245 return _STLP_PRIV __put_num(*this, __STATIC_CAST(unsigned long,__x));
248 template <class _CharT, class _Traits>
249 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(long __x)
250 { return _STLP_PRIV __put_num(*this, __x); }
252 template <class _CharT, class _Traits>
253 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(unsigned long __x)
254 { return _STLP_PRIV __put_num(*this, __x); }
256 #ifdef _STLP_LONG_LONG
257 template <class _CharT, class _Traits>
258 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<< (_STLP_LONG_LONG __x)
259 { return _STLP_PRIV __put_num(*this, __x); }
261 template <class _CharT, class _Traits>
262 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<< (unsigned _STLP_LONG_LONG __x)
263 { return _STLP_PRIV __put_num(*this, __x); }
266 template <class _CharT, class _Traits>
267 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(float __x)
268 { return _STLP_PRIV __put_num(*this, __STATIC_CAST(double,__x)); }
270 template <class _CharT, class _Traits>
271 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(double __x)
272 { return _STLP_PRIV __put_num(*this, __x); }
274 #ifndef _STLP_NO_LONG_DOUBLE
275 template <class _CharT, class _Traits>
276 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(long double __x)
277 { return _STLP_PRIV __put_num(*this, __x); }
280 template <class _CharT, class _Traits>
281 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(const void* __x)
282 { return _STLP_PRIV __put_num(*this, __x); }
284 #ifndef _STLP_NO_BOOL
285 template <class _CharT, class _Traits>
286 basic_ostream<_CharT, _Traits>& basic_ostream<_CharT, _Traits>::operator<<(bool __x)
287 { return _STLP_PRIV __put_num(*this, __x); }
290 template <class _CharT, class _Traits>
291 void basic_ostream<_CharT, _Traits>::_M_put_char(_CharT __c) {
292 sentry __sentry(*this);
294 bool __failed = true;
296 streamsize __npad = this->width() > 0 ? this->width() - 1 : 0;
299 __failed = this->_S_eof(this->rdbuf()->sputc(__c));
300 else if ((this->flags() & ios_base::adjustfield) == ios_base::left) {
301 __failed = this->_S_eof(this->rdbuf()->sputc(__c));
302 __failed = __failed ||
303 this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
306 __failed = this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
307 __failed = __failed || this->_S_eof(this->rdbuf()->sputc(__c));
313 this->_M_handle_exception(ios_base::badbit);
317 this->setstate(ios_base::badbit);
321 template <class _CharT, class _Traits>
322 void basic_ostream<_CharT, _Traits>::_M_put_nowiden(const _CharT* __s) {
323 sentry __sentry(*this);
325 bool __failed = true;
326 streamsize __n = _Traits::length(__s);
327 streamsize __npad = this->width() > __n ? this->width() - __n : 0;
331 __failed = this->rdbuf()->sputn(__s, __n) != __n;
332 else if ((this->flags() & ios_base::adjustfield) == ios_base::left) {
333 __failed = this->rdbuf()->sputn(__s, __n) != __n;
334 __failed = __failed ||
335 this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
338 __failed = this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
339 __failed = __failed || this->rdbuf()->sputn(__s, __n) != __n;
345 this->_M_handle_exception(ios_base::badbit);
349 this->setstate(ios_base::failbit);
353 template <class _CharT, class _Traits>
354 void basic_ostream<_CharT, _Traits>::_M_put_widen(const char* __s) {
355 sentry __sentry(*this);
357 bool __failed = true;
358 streamsize __n = char_traits<char>::length(__s);
359 streamsize __npad = this->width() > __n ? this->width() - __n : 0;
363 __failed = !this->_M_put_widen_aux(__s, __n);
364 else if ((this->flags() & ios_base::adjustfield) == ios_base::left) {
365 __failed = !this->_M_put_widen_aux(__s, __n);
366 __failed = __failed ||
367 this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
370 __failed = this->rdbuf()->_M_sputnc(this->fill(), __npad) != __npad;
371 __failed = __failed || !this->_M_put_widen_aux(__s, __n);
377 this->_M_handle_exception(ios_base::badbit);
381 this->setstate(ios_base::failbit);
385 template <class _CharT, class _Traits>
386 bool basic_ostream<_CharT, _Traits>::_M_put_widen_aux(const char* __s,
388 basic_streambuf<_CharT, _Traits>* __buf = this->rdbuf();
390 for ( ; __n > 0 ; --__n)
391 if (this->_S_eof(__buf->sputc(this->widen(*__s++))))
396 // Unformatted output of a single character.
397 template <class _CharT, class _Traits>
398 basic_ostream<_CharT, _Traits>&
399 basic_ostream<_CharT, _Traits>::put(char_type __c) {
400 sentry __sentry(*this);
401 bool __failed = true;
405 __failed = this->_S_eof(this->rdbuf()->sputc(__c));
408 this->_M_handle_exception(ios_base::badbit);
413 this->setstate(ios_base::badbit);
418 // Unformatted output of a single character.
419 template <class _CharT, class _Traits>
420 basic_ostream<_CharT, _Traits>&
421 basic_ostream<_CharT, _Traits>::write(const char_type* __s, streamsize __n) {
422 sentry __sentry(*this);
423 bool __failed = true;
427 __failed = this->rdbuf()->sputn(__s, __n) != __n;
430 this->_M_handle_exception(ios_base::badbit);
435 this->setstate(ios_base::badbit);
442 #endif /* _STLP_OSTREAM_C */