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extern/ustl/1.5/uios.h

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+// This file is part of the uSTL library, an STL implementation.
+//
+// Copyright (c) 2005 by Mike Sharov <msharov@users.sourceforge.net>
+// This file is free software, distributed under the MIT License.
+
+#ifndef UIOS_H_630C16E316F7650E3A02E1C6611B789A
+#define UIOS_H_630C16E316F7650E3A02E1C6611B789A
+
+#include "utypes.h"
+
+namespace ustl {
+
+class file_exception;
+
+const char endl = '\n';		///< End of line character.
+const char ends = '\0';		///< End of string character.
+
+/// Defines types and constants used by all stream classes.
+class ios_base {
+public:
+    /// Used to set parameters for stringstreams
+    enum fmtflags {
+	boolalpha	= (1 << 0),	///< Boolean values printed as text.
+	dec		= (1 << 1),	///< Decimal number output.
+	fixed		= (1 << 2),	///< Fixed-point float output.
+	hex		= (1 << 3),	///< Hexadecimal number output.
+	internal	= (1 << 4),
+	left		= (1 << 5),	///< Left alignment.
+	oct		= (1 << 6),	///< Octal number output.
+	right		= (1 << 7),	///< Right alignment.
+	scientific	= (1 << 8),	///< Scientific float format.
+	showbase	= (1 << 9),	///< Add 0x or 0 prefixes on hex and octal numbers.
+	showpoint	= (1 << 10),	///< Print decimal point.
+	showpos		= (1 << 11),
+	skipws		= (1 << 12),	///< Skip whitespace when reading.
+	unitbuf		= (1 << 13),
+	uppercase	= (1 << 14),
+	adjustfield	= (1 << 15),
+	basefield	= (1 << 16),
+	floatfield	= (1 << 17)
+    };
+    /// For file-based streams, specifies fd mode.
+    enum openmode_bits {
+	in	= (1 << 0),
+	out	= (1 << 1),
+	app	= (1 << 2),
+	ate	= (1 << 3),
+	binary	= (1 << 4),
+	trunc	= (1 << 5),
+	#ifndef DOXYGEN_SHOULD_SKIP_THIS
+	nonblock= (1 << 6),
+	nocreate= (1 << 7),
+	noctty	= (1 << 8),
+	nombits	= 9
+	#endif
+    };
+    /// Seek directions, equivalent to SEEK_SET, SEEK_CUR, and SEEK_END.
+    enum seekdir {
+	beg,
+	cur,
+	end
+    };
+    /// I/O state bitmasks.
+    enum iostate_bits {
+	goodbit	= 0,
+	badbit	= (1 << 0),
+	eofbit	= (1 << 1),
+	failbit	= (1 << 2),
+	#ifndef DOXYGEN_SHOULD_SKIP_THIS
+	nbadbits = 3,
+	allbadbits = 0x7
+	#endif
+    };
+
+    typedef uint32_t		openmode;	///< Holds openmode_bits.
+    typedef uint32_t		iostate;	///< Holds iostate_bits for a file stream.
+    typedef file_exception	failure;	///< Thrown by fstream on errors.
+
+    static const char c_DefaultDelimiters [16];	///< Default word delimiters for stringstreams.
+public:
+    inline		ios_base (void)			: m_State (goodbit), m_Exceptions (allbadbits) {}
+    inline iostate	rdstate (void) const		{ return (m_State); }
+    inline bool		bad (void) const		{ return (rdstate() & badbit); }
+    inline bool		good (void) const		{ return (rdstate() == goodbit); }
+    inline bool		fail (void) const		{ return (rdstate() & (badbit | failbit)); }
+    inline bool		eof (void) const		{ return (rdstate() & eofbit); }
+    inline bool		operator! (void) const		{ return (fail()); }
+    inline		operator void* (void) const	{ return ((void*)(!fail())); }
+    inline void		clear (iostate v = goodbit)	{ m_State = v; }
+    inline void		setstate (iostate v)		{ m_State |= v; }
+    inline iostate	exceptions (void) const		{ return (m_Exceptions); }
+    inline iostate	exceptions (iostate v)		{ return (m_Exceptions = v); }
+protected:
+    inline bool		set_and_throw (iostate v)	{ setstate(v); return (exceptions() & v); }
+    void		overrun (const char* op, const char* type, uint32_t n, uint32_t p, uint32_t rem);
+private:
+    uint16_t		m_State;	///< Open state, using ios::iostate_bits.
+    uint16_t		m_Exceptions;	///< Exception flags, using ios::iostate_bits.
+};
+
+} // namespace ustl
+
+#endif