93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
// This file is part of the uSTL library, an STL implementation.
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//
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// Copyright (c) 2005 by Mike Sharov <msharov@users.sourceforge.net>
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// This file is free software, distributed under the MIT License.
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#pragma once
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#include "sostream.h"
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namespace ustl {
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class ios : public ios_base {
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public:
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/// \class align uiosfunc.h ustl.h
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/// \ingroup StreamFunctors
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/// \brief Stream functor to allow inline align() calls.
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///
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/// Example: os << ios::align(sizeof(uint16_t));
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///
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class align {
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public:
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inline explicit align (size_t grain = c_DefaultAlignment) : m_Grain(grain) {}
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inline istream& apply (istream& is) const { is.align (m_Grain); return (is); }
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inline ostream& apply (ostream& os) const { os.align (m_Grain); return (os); }
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inline void read (istream& is) const { apply (is); }
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inline void write (ostream& os) const { apply (os); }
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inline size_t stream_size (void) const { return (m_Grain - 1); }
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private:
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const size_t m_Grain;
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};
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/// \class talign uiosfunc.h ustl.h
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/// \ingroup StreamFunctors
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/// \brief Stream functor to allow type-based alignment.
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template <typename T>
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class talign : public align {
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public:
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inline explicit talign (void) : align (stream_align_of (NullValue<T>())) {}
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};
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/// \class skip uiosfunc.h ustl.h
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/// \ingroup StreamFunctors
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/// \brief Stream functor to allow inline skip() calls.
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///
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/// Example: os << ios::skip(sizeof(uint16_t));
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///
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class skip {
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public:
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inline explicit skip (size_t nBytes) : m_nBytes(nBytes) {}
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inline istream& apply (istream& is) const { is.skip (m_nBytes); return (is); }
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inline ostream& apply (ostream& os) const { os.skip (m_nBytes); return (os); }
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inline void read (istream& is) const { apply (is); }
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inline void write (ostream& os) const { apply (os); }
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inline size_t stream_size (void) const { return (m_nBytes); }
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private:
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const size_t m_nBytes;
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};
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/// \class width uiosfunc.h ustl.h
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/// \ingroup StreamFunctors
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/// \brief Stream functor to allow inline set_width() calls.
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///
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/// Example: os << ios::width(15);
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///
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class width {
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public:
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inline explicit width (size_t nBytes) : m_nBytes(nBytes) {}
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inline ostringstream& apply (ostringstream& os) const { os.set_width (m_nBytes); return (os); }
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inline void text_write (ostringstream& os) const { apply (os); }
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private:
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const size_t m_nBytes;
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};
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/// \class base uiosfunc.h ustl.h
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/// \ingroup StreamFunctors
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/// \brief Stream functor to allow inline set_base() calls.
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///
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/// Example: os << ios::base(15);
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///
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class base {
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public:
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inline explicit base (size_t n) : m_Base(n) {}
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inline ostringstream& apply (ostringstream& os) const { os.set_base (m_Base); return (os); }
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inline void text_write (ostringstream& os) const { apply (os); }
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private:
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const size_t m_Base;
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};
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};
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} // namespace ustl
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CAST_STREAMABLE(ustl::ios::fmtflags, uint32_t)
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NUMERIC_LIMITS(ustl::ios::fmtflags, ustl::ios::boolalpha, ustl::ios::floatfield, false, true, true)
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