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FC1/STLPORT/stlport/stl/_num_put.c
romkazvo 34d6c5d489 123
2023-08-07 19:29:24 +08:00

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/*
* Copyright (c) 1999
* Silicon Graphics Computer Systems, Inc.
*
* Copyright (c) 1999
* Boris Fomitchev
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
#ifndef _STLP_NUM_PUT_C
#define _STLP_NUM_PUT_C
#ifndef _STLP_INTERNAL_NUM_PUT_H
# include <stl/_num_put.h>
#endif
# if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION)
#ifndef _STLP_LIMITS_H
# include <stl/_limits.h>
#endif
_STLP_BEGIN_NAMESPACE
// _M_do_put_float and its helper functions. Strategy: write the output
// to a buffer of char, transform the buffer to _CharT, and then copy
// it to the output.
template <class _CharT, class _OutputIter,class _Float>
_OutputIter _STLP_CALL
_M_do_put_float(_OutputIter __s, ios_base& __f, _CharT __fill,_Float __x);
//----------------------------------------------------------------------
// num_put facet
template <class _CharT, class _OutputIter>
_OutputIter _STLP_CALL
__copy_float_and_fill(const _CharT* __first, const _CharT* __last,
_OutputIter __out,
ios_base::fmtflags __flags,
streamsize __width, _CharT __fill,
_CharT __xplus, _CharT __xminus) {
if (__width <= __last - __first)
return copy(__first, __last, __out);
else {
streamsize __pad = __width - (__last - __first);
ios_base::fmtflags __dir = __flags & ios_base::adjustfield;
if (__dir == ios_base::left) {
__out = copy(__first, __last, __out);
return fill_n(__out, __pad, __fill);
}
else if (__dir == ios_base::internal && __first != __last &&
(*__first == __xplus || *__first == __xminus)) {
*__out++ = *__first++;
__out = fill_n(__out, __pad, __fill);
return copy(__first, __last, __out);
}
else {
__out = fill_n(__out, __pad, __fill);
return copy(__first, __last, __out);
}
}
}
#ifndef _STLP_NO_WCHAR_T
// Helper routine for wchar_t
template <class _OutputIter>
_OutputIter _STLP_CALL
__put_float(char* __ibuf, char* __iend, _OutputIter __out,
ios_base& __f, wchar_t __fill,
wchar_t __decimal_point,
wchar_t __sep, const string& __grouping)
{
const ctype<wchar_t>& __ct = *(ctype<wchar_t>*)__f._M_ctype_facet() ;
wchar_t __wbuf[128];
wchar_t* __eend = __convert_float_buffer(__ibuf, __iend, __wbuf,
__ct, __decimal_point);
if (!__grouping.empty()) {
// In order to do separator-insertion only to the left of the
// decimal point, we adjust the size of the first (right-most)
// group. We need to be careful if there is only one entry in
// grouping: in this case we need to duplicate the first entry.
string __new_grouping = __grouping;
wchar_t* __decimal_pos = find(__wbuf, __eend, __decimal_point);
if (__grouping.size() == 1)
__new_grouping.push_back(__grouping[0]);
// dwa 1/24/00 - try as I might, there doesn't seem to be a way
// to suppress the warning
__new_grouping[0] += __STATIC_CAST(char, __eend - __decimal_pos);
ptrdiff_t __len = __insert_grouping(__wbuf, __eend, __new_grouping,
__sep,
__ct.widen('+'), __ct.widen('-'),
0);
__eend = __wbuf + __len;
}
return __copy_float_and_fill(__wbuf, __eend, __out,
__f.flags(), __f.width(0), __fill,
__ct.widen('+'), __ct.widen('-'));
}
# endif /* WCHAR_T */
// Helper routine for char
template <class _OutputIter>
_OutputIter _STLP_CALL
__put_float(char* __ibuf, char* __iend, _OutputIter __out,
ios_base& __f, char __fill,
char __decimal_point,
char __sep, const string& __grouping)
{
__adjust_float_buffer(__ibuf, __iend, __decimal_point);
if (!__grouping.empty()) {
string __new_grouping = __grouping;
const char * __decimal_pos = find(__ibuf, __iend, __decimal_point);
if (__grouping.size() == 1)
__new_grouping.push_back(__grouping[0]);
__new_grouping[0] += __STATIC_CAST(char, (__iend - __decimal_pos));
ptrdiff_t __len = __insert_grouping(__ibuf, __iend, __new_grouping,
__sep, '+', '-', 0);
__iend = __ibuf + __len;
}
return __copy_float_and_fill(__ibuf, __iend, __out,
__f.flags(), __f.width(0), __fill, '+', '-');
}
template <class _CharT, class _OutputIter, class _Float>
_OutputIter _STLP_CALL
_M_do_put_float(_OutputIter __s, ios_base& __f,
_CharT __fill, _Float __x)
{
string __buf;
__buf.reserve(128);
__write_float(__buf, __f.flags(), (int)__f.precision(), __x);
const numpunct<_CharT>& __np = *(const numpunct<_CharT>*)__f._M_numpunct_facet();
return __put_float(__CONST_CAST(char*, __buf.c_str()),
__CONST_CAST(char*, __buf.c_str()) + __buf.size(),
__s, __f, __fill,
__np.decimal_point(),
__np.thousands_sep(), __f._M_grouping());
}
// _M_do_put_integer and its helper functions.
template <class _CharT, class _OutputIter>
_OutputIter _STLP_CALL
__copy_integer_and_fill(const _CharT* __buf, ptrdiff_t __len,
_OutputIter __out,
ios_base::fmtflags __flg, streamsize __wid, _CharT __fill,
_CharT __xplus, _CharT __xminus)
{
if (__len >= __wid)
return copy(__buf, __buf + __len, __out);
else {
ptrdiff_t __pad = __wid - __len;
ios_base::fmtflags __dir = __flg & ios_base::adjustfield;
if (__dir == ios_base::left) {
__out = copy(__buf, __buf + __len, __out);
return fill_n(__out, __pad, __fill);
}
else if (__dir == ios_base::internal && __len != 0 &&
(__buf[0] == __xplus || __buf[0] == __xminus)) {
*__out++ = __buf[0];
__out = fill_n(__out, __pad, __fill);
return copy(__buf + 1, __buf + __len, __out);
}
else if (__dir == ios_base::internal && __len >= 2 &&
(__flg & ios_base::showbase) &&
(__flg & ios_base::basefield) == ios_base::hex) {
*__out++ = __buf[0];
*__out++ = __buf[1];
__out = fill_n(__out, __pad, __fill);
return copy(__buf + 2, __buf + __len, __out);
}
else {
__out = fill_n(__out, __pad, __fill);
return copy(__buf, __buf + __len, __out);
}
}
}
#ifndef _STLP_NO_WCHAR_T
// Helper function for wchar_t
template <class _OutputIter>
_OutputIter _STLP_CALL
__put_integer(char* __buf, char* __iend, _OutputIter __s,
ios_base& __f,
ios_base::fmtflags __flags, wchar_t __fill)
{
locale __loc = __f.getloc();
// const ctype<wchar_t>& __ct = use_facet<ctype<wchar_t> >(__loc);
const ctype<wchar_t>& __ct = *(const ctype<wchar_t>*)__f._M_ctype_facet();
wchar_t __xplus = __ct.widen('+');
wchar_t __xminus = __ct.widen('-');
wchar_t __wbuf[64];
__ct.widen(__buf, __iend, __wbuf);
ptrdiff_t __len = __iend - __buf;
wchar_t* __eend = __wbuf + __len;
// const numpunct<wchar_t>& __np = use_facet<numpunct<wchar_t> >(__loc);
// const string& __grouping = __np.grouping();
const numpunct<wchar_t>& __np = *(const numpunct<wchar_t>*)__f._M_numpunct_facet();
const string& __grouping = __f._M_grouping();
if (!__grouping.empty()) {
int __basechars;
if (__flags & ios_base::showbase)
switch (__flags & ios_base::basefield) {
case ios_base::hex: __basechars = 2; break;
case ios_base::oct: __basechars = 1; break;
default: __basechars = 0;
}
else
__basechars = 0;
__len = __insert_grouping(__wbuf, __eend, __grouping, __np.thousands_sep(),
__xplus, __xminus, __basechars);
}
return __copy_integer_and_fill((wchar_t*)__wbuf, __len, __s,
__flags, __f.width(0), __fill, __xplus, __xminus);
}
#endif
// Helper function for char
template <class _OutputIter>
_OutputIter _STLP_CALL
__put_integer(char* __buf, char* __iend, _OutputIter __s,
ios_base& __f, ios_base::fmtflags __flags, char __fill)
{
ptrdiff_t __len = __iend - __buf;
char __grpbuf[64];
// const numpunct<char>& __np = use_facet<numpunct<char> >(__f.getloc());
// const string& __grouping = __np.grouping();
const numpunct<char>& __np = *(const numpunct<char>*)__f._M_numpunct_facet();
const string& __grouping = __f._M_grouping();
if (!__grouping.empty()) {
int __basechars;
if (__flags & ios_base::showbase)
switch (__flags & ios_base::basefield) {
case ios_base::hex: __basechars = 2; break;
case ios_base::oct: __basechars = 1; break;
default: __basechars = 0;
}
else
__basechars = 0;
// make sure there is room at the end of the buffer
// we pass to __insert_grouping
copy(__buf, __iend, (char *) __grpbuf);
__buf = __grpbuf;
__iend = __grpbuf + __len;
__len = __insert_grouping(__buf, __iend, __grouping, __np.thousands_sep(),
'+', '-', __basechars);
}
return __copy_integer_and_fill(__buf, __len, __s, __flags, __f.width(0), __fill, '+', '-');
}
#ifdef _STLP_LONG_LONG
typedef _STLP_LONG_LONG __max_int_t;
typedef unsigned _STLP_LONG_LONG __umax_int_t;
#else
typedef long __max_int_t;
typedef unsigned long __umax_int_t;
#endif
extern const char __hex_char_table_lo[];
extern const char __hex_char_table_hi[];
template <class _Integer>
inline char* _STLP_CALL
__write_decimal_backward(char* __ptr, _Integer __x, ios_base::fmtflags __flags, const __true_type& /* is_signed */)
{
const bool __negative = __x < 0 ;
__max_int_t __temp = __x;
__umax_int_t __utemp = __negative?-__temp:__temp;
for (; __utemp != 0; __utemp /= 10)
*--__ptr = (int)(__utemp % 10) + '0';
// put sign if needed or requested
if (__negative)
*--__ptr = '-';
else if (__flags & ios_base::showpos)
*--__ptr = '+';
return __ptr;
}
template <class _Integer>
inline char* _STLP_CALL
__write_decimal_backward(char* __ptr, _Integer __x, ios_base::fmtflags __flags, const __false_type& /* is_signed */)
{
for (; __x != 0; __x /= 10)
*--__ptr = (int)(__x % 10) + '0';
// put sign if requested
if (__flags & ios_base::showpos)
*--__ptr = '+';
return __ptr;
}
template <class _Integer>
char* _STLP_CALL
__write_integer_backward(char* __buf, ios_base::fmtflags __flags, _Integer __x)
{
char* __ptr = __buf;
__umax_int_t __temp;
if (__x == 0) {
*--__ptr = '0';
if ((__flags & ios_base::showpos) && ( (__flags & (ios_base::hex | ios_base::oct)) == 0 ))
*--__ptr = '+';
}
else {
switch (__flags & ios_base::basefield) {
case ios_base::oct:
__temp = __x;
// if the size of integer is less than 8, clear upper part
if ( sizeof(__x) < 8 && sizeof(__umax_int_t) >= 8 )
__temp &= 0xFFFFFFFF;
for (; __temp != 0; __temp >>=3)
*--__ptr = (((unsigned)__temp)& 0x7) + '0';
// put leading '0' is showbase is set
if (__flags & ios_base::showbase)
*--__ptr = '0';
break;
case ios_base::hex:
{
const char* __table_ptr = (__flags & ios_base::uppercase) ?
__hex_char_table_hi : __hex_char_table_lo;
__temp = __x;
// if the size of integer is less than 8, clear upper part
if ( sizeof(__x) < 8 && sizeof(__umax_int_t) >= 8 )
__temp &= 0xFFFFFFFF;
for (; __temp != 0; __temp >>=4)
*--__ptr = __table_ptr[((unsigned)__temp & 0xF)];
if (__flags & ios_base::showbase) {
*--__ptr = __table_ptr[16];
*--__ptr = '0';
}
}
break;
default:
{
#if defined(__HP_aCC) && (__HP_aCC == 1)
bool _IsSigned = !((_Integer)-1 > 0);
if (_IsSigned)
__ptr = __write_decimal_backward(__ptr, __x, __flags, __true_type() );
else
__ptr = __write_decimal_backward(__ptr, __x, __flags, __false_type() );
#else
typedef typename __bool2type<numeric_limits<_Integer>::is_signed>::_Ret _IsSigned;
__ptr = __write_decimal_backward(__ptr, __x, __flags, _IsSigned());
# endif
}
break;
}
}
// return pointer to beginning of the string
return __ptr;
}
//
// num_put<>
//
# if ( _STLP_STATIC_TEMPLATE_DATA > 0 )
template <class _CharT, class _OutputIterator>
locale::id num_put<_CharT, _OutputIterator>::id;
# else /* ( _STLP_STATIC_TEMPLATE_DATA > 0 ) */
typedef num_put<char, const char*> num_put_char;
typedef num_put<char, char*> num_put_char_2;
typedef num_put<char, ostreambuf_iterator<char, char_traits<char> > > num_put_char_3;
__DECLARE_INSTANCE(locale::id, num_put_char::id, );
__DECLARE_INSTANCE(locale::id, num_put_char_2::id, );
__DECLARE_INSTANCE(locale::id, num_put_char_3::id, );
# ifndef _STLP_NO_WCHAR_T
typedef num_put<wchar_t, const wchar_t*> num_put_wchar_t;
typedef num_put<wchar_t, wchar_t*> num_put_wchar_t_2;
typedef num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > > num_put_wchar_t_3;
__DECLARE_INSTANCE(locale::id, num_put_wchar_t::id, );
__DECLARE_INSTANCE(locale::id, num_put_wchar_t_2::id, );
__DECLARE_INSTANCE(locale::id, num_put_wchar_t_3::id, );
# endif
# endif /* ( _STLP_STATIC_TEMPLATE_DATA > 0 ) */
// issue 118
# ifndef _STLP_NO_BOOL
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f,
char_type __fill, bool __val) const {
if (!(__f.flags() & ios_base::boolalpha))
return this->do_put(__s, __f, __fill, __STATIC_CAST(long,__val));
locale __loc = __f.getloc();
// typedef numpunct<_CharT> _Punct;
// const _Punct& __np = use_facet<_Punct>(__loc);
const numpunct<_CharT>& __np = *(const numpunct<_CharT>*)__f._M_numpunct_facet();
basic_string<_CharT> __str = __val ? __np.truename() : __np.falsename();
// Reuse __copy_integer_and_fill. Since internal padding makes no
// sense for bool, though, make sure we use something else instead.
// The last two argument to __copy_integer_and_fill are dummies.
ios_base::fmtflags __flags = __f.flags();
if ((__flags & ios_base::adjustfield) == ios_base::internal)
__flags = (__flags & ~ios_base::adjustfield) | ios_base::right;
return __copy_integer_and_fill(__str.c_str(), __str.size(), __s,
__flags, __f.width(0), __fill,
(_CharT) 0, (_CharT) 0);
}
# endif
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
long __val) const {
char __buf[64]; // Large enough for a base 8 64-bit integer,
// plus any necessary grouping.
ios_base::fmtflags __flags = __f.flags();
char* __ibeg = __write_integer_backward((char*)__buf+64, __flags, __val);
return __put_integer(__ibeg, (char*)__buf+64, __s, __f, __flags, __fill);
}
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
unsigned long __val) const {
char __buf[64]; // Large enough for a base 8 64-bit integer,
// plus any necessary grouping.
ios_base::fmtflags __flags = __f.flags();
char* __ibeg = __write_integer_backward((char*)__buf+64, __flags, __val);
return __put_integer(__ibeg, (char*)__buf+64, __s, __f, __flags, __fill);
}
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
double __val) const {
return _M_do_put_float(__s, __f, __fill, __val);
}
#ifndef _STLP_NO_LONG_DOUBLE
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
long double __val) const {
return _M_do_put_float(__s, __f, __fill, __val);
}
#endif
#ifdef _STLP_LONG_LONG
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
_STLP_LONG_LONG __val) const {
char __buf[64]; // Large enough for a base 8 64-bit integer,
// plus any necessary grouping.
ios_base::fmtflags __flags = __f.flags();
char* __ibeg = __write_integer_backward((char*)__buf+64, __flags, __val);
return __put_integer(__ibeg, (char*)__buf+64, __s, __f, __flags, __fill);
}
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
unsigned _STLP_LONG_LONG __val) const {
char __buf[64]; // Large enough for a base 8 64-bit integer,
// plus any necessary grouping.
ios_base::fmtflags __flags = __f.flags();
char* __ibeg = __write_integer_backward((char*)__buf+64, __flags, __val);
return __put_integer(__ibeg, (char*)__buf+64, __s, __f, __flags, __fill);
}
#endif /* _STLP_LONG_LONG */
// lib.facet.num.put.virtuals "12 For conversion from void* the specifier is %p."
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT /*__fill*/,
const void* __val) const {
const ctype<_CharT>& __c_type = *(const ctype<_CharT>*)__f._M_ctype_facet();
ios_base::fmtflags __save_flags = __f.flags();
__f.setf(ios_base::hex, ios_base::basefield);
__f.setf(ios_base::showbase);
__f.setf(ios_base::internal, ios_base::adjustfield);
__f.width((sizeof(void*) * 2) + 2); // digits in pointer type plus '0x' prefix
# if defined(_STLP_LONG_LONG) && !defined(__MRC__) //*ty 11/24/2001 - MrCpp can not cast from void* to long long
_OutputIter result = this->do_put(__s, __f, __c_type.widen('0'), __REINTERPRET_CAST(unsigned _STLP_LONG_LONG,__val));
# else
_OutputIter result = this->do_put(__s, __f, __c_type.widen('0'), __REINTERPRET_CAST(unsigned long,__val));
# endif
__f.flags(__save_flags);
return result;
}
_STLP_END_NAMESPACE
# endif /* _STLP_EXPOSE_STREAM_IMPLEMENTATION */
#endif /* _STLP_NUM_PUT_C */
// Local Variables:
// mode:C++
// End:
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