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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___LOCALE_DIR_PAD_AND_OUTPUT_H
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#define _LIBCPP___LOCALE_DIR_PAD_AND_OUTPUT_H
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#include <__config>
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#if _LIBCPP_HAS_LOCALIZATION
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# include <ios>
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# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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# endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _CharT, class _OutputIterator>
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_LIBCPP_HIDE_FROM_ABI _OutputIterator __pad_and_output(
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_OutputIterator __s, const _CharT* __ob, const _CharT* __op, const _CharT* __oe, ios_base& __iob, _CharT __fl) {
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streamsize __sz = __oe - __ob;
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streamsize __ns = __iob.width();
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if (__ns > __sz)
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__ns -= __sz;
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else
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__ns = 0;
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for (; __ob < __op; ++__ob, ++__s)
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*__s = *__ob;
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for (; __ns; --__ns, ++__s)
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*__s = __fl;
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for (; __ob < __oe; ++__ob, ++__s)
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*__s = *__ob;
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__iob.width(0);
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return __s;
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}
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template <class _CharT, class _Traits>
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_LIBCPP_HIDE_FROM_ABI ostreambuf_iterator<_CharT, _Traits> __pad_and_output(
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ostreambuf_iterator<_CharT, _Traits> __s,
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const _CharT* __ob,
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const _CharT* __op,
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const _CharT* __oe,
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ios_base& __iob,
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_CharT __fl) {
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if (__s.__sbuf_ == nullptr)
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return __s;
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streamsize __sz = __oe - __ob;
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streamsize __ns = __iob.width();
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if (__ns > __sz)
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__ns -= __sz;
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else
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__ns = 0;
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streamsize __np = __op - __ob;
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if (__np > 0) {
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if (__s.__sbuf_->sputn(__ob, __np) != __np) {
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__s.__sbuf_ = nullptr;
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return __s;
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}
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}
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if (__ns > 0) {
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basic_string<_CharT, _Traits> __sp(__ns, __fl);
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if (__s.__sbuf_->sputn(__sp.data(), __ns) != __ns) {
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__s.__sbuf_ = nullptr;
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return __s;
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}
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}
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__np = __oe - __op;
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if (__np > 0) {
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if (__s.__sbuf_->sputn(__op, __np) != __np) {
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__s.__sbuf_ = nullptr;
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return __s;
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}
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}
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__iob.width(0);
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return __s;
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_HAS_LOCALIZATION
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#endif // _LIBCPP___LOCALE_DIR_PAD_AND_OUTPUT_H
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