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common/quicktime_win32/CoreFoundation/CFNumber.h

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+/*	CFNumber.h
+	Copyright (c) 1999-2003, Apple, Inc. All rights reserved.
+*/
+
+#if !defined(__COREFOUNDATION_CFNUMBER__)
+#define __COREFOUNDATION_CFNUMBER__ 1
+
+#include <CoreFoundation/CFBase.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+typedef const struct __CFBoolean * CFBooleanRef;
+
+#if TARGET_OS_WIN32
+#define kCFBooleanTrue (*((const CFBooleanRef *)QTGetCFConstant("kCFBooleanTrue")))
+#define kCFBooleanFalse (*((const CFBooleanRef *)QTGetCFConstant("kCFBooleanFalse")))
+#else
+CF_EXPORT
+const CFBooleanRef kCFBooleanTrue;
+CF_EXPORT
+const CFBooleanRef kCFBooleanFalse;
+#endif
+
+CF_EXPORT
+CFTypeID CFBooleanGetTypeID(void);
+
+CF_EXPORT
+Boolean CFBooleanGetValue(CFBooleanRef boolean);
+
+typedef enum {
+    /* Types from MacTypes.h */
+    kCFNumberSInt8Type = 1,
+    kCFNumberSInt16Type = 2,
+    kCFNumberSInt32Type = 3,
+    kCFNumberSInt64Type = 4,
+    kCFNumberFloat32Type = 5,
+    kCFNumberFloat64Type = 6,	/* 64-bit IEEE 754 */
+    /* Basic C types */
+    kCFNumberCharType = 7,
+    kCFNumberShortType = 8,
+    kCFNumberIntType = 9,
+    kCFNumberLongType = 10,
+    kCFNumberLongLongType = 11,
+    kCFNumberFloatType = 12,
+    kCFNumberDoubleType = 13,
+    /* Other */
+    kCFNumberCFIndexType = 14,
+    kCFNumberMaxType = 14
+} CFNumberType;
+
+typedef const struct __CFNumber * CFNumberRef;
+
+#if TARGET_OS_WIN32
+#define kCFNumberPositiveInfinity (*((const CFNumberRef *)QTGetCFConstant("kCFNumberPositiveInfinity")))
+#define kCFNumberNegativeInfinity (*((const CFNumberRef *)QTGetCFConstant("kCFNumberNegativeInfinity")))
+#define kCFNumberNaN (*((const CFNumberRef *)QTGetCFConstant("kCFNumberNaN")))
+#else
+CF_EXPORT
+const CFNumberRef kCFNumberPositiveInfinity;
+CF_EXPORT
+const CFNumberRef kCFNumberNegativeInfinity;
+CF_EXPORT
+const CFNumberRef kCFNumberNaN;
+#endif
+
+CF_EXPORT
+CFTypeID CFNumberGetTypeID(void);
+
+/*
+	Creates a CFNumber with the given value. The type of number pointed
+	to by the valuePtr is specified by type. If type is a floating point
+	type and the value represents one of the infinities or NaN, the
+	well-defined CFNumber for that value is returned. If either of
+	valuePtr or type is an invalid value, the result is undefined.
+*/
+CF_EXPORT
+CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
+
+/*
+	Returns the storage format of the CFNumber's value.  Note that
+	this is not necessarily the type provided in CFNumberCreate().
+*/
+CF_EXPORT
+CFNumberType CFNumberGetType(CFNumberRef number);
+
+/*
+	Returns the size in bytes of the type of the number.
+*/
+CF_EXPORT
+CFIndex CFNumberGetByteSize(CFNumberRef number);
+
+/*
+	Returns true if the type of the CFNumber's value is one of
+	the defined floating point types.
+*/
+CF_EXPORT
+Boolean CFNumberIsFloatType(CFNumberRef number);
+
+/*
+	Copies the CFNumber's value into the space pointed to by
+	valuePtr, as the specified type. If conversion needs to take
+	place, the conversion rules follow human expectation and not
+	C's promotion and truncation rules. If the conversion is
+	lossy, or the value is out of range, false is returned. Best
+	attempt at conversion will still be in *valuePtr.
+*/
+CF_EXPORT
+Boolean CFNumberGetValue(CFNumberRef number, CFNumberType theType, void *valuePtr);
+
+/*
+	Compares the two CFNumber instances. If conversion of the
+	types of the values is needed, the conversion and comparison
+	follow human expectations and not C's promotion and comparison
+	rules. Negative zero compares less than positive zero.
+	Positive infinity compares greater than everything except
+	itself, to which it compares equal. Negative infinity compares
+	less than everything except itself, to which it compares equal.
+	Unlike standard practice, if both numbers are NaN, then they
+	compare equal; if only one of the numbers is NaN, then the NaN
+	compares greater than the other number if it is negative, and
+	smaller than the other number if it is positive. (Note that in
+	CFEqual() with two CFNumbers, if either or both of the numbers
+	is NaN, true is returned.)
+*/
+CF_EXPORT
+CFComparisonResult CFNumberCompare(CFNumberRef number, CFNumberRef otherNumber, void *context);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* ! __COREFOUNDATION_CFNUMBER__ */
+