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funasr_local/runtime/onnxruntime/include/tclap/ArgTraits.h

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+// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
+
+/******************************************************************************
+ *
+ *  file:  ArgTraits.h
+ *
+ *  Copyright (c) 2007, Daniel Aarno, Michael E. Smoot .
+ *  Copyright (c) 2017 Google LLC
+ *  All rights reserved.
+ *
+ *  See the file COPYING in the top directory of this distribution for
+ *  more information.
+ *
+ *  THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ *  DEALINGS IN THE SOFTWARE.
+ *
+ *****************************************************************************/
+
+// This is an internal tclap file, you should probably not have to
+// include this directly
+
+#ifndef TCLAP_ARGTRAITS_H
+#define TCLAP_ARGTRAITS_H
+
+namespace TCLAP {
+
+// We use two empty structs to get compile type specialization
+// function to work
+
+/**
+ * A value like argument value type is a value that can be set using
+ * operator>>. This is the default value type.
+ */
+struct ValueLike {
+    typedef ValueLike ValueCategory;
+	virtual ~ValueLike() {}
+};
+
+/**
+ * A string like argument value type is a value that can be set using
+ * operator=(string). Useful if the value type contains spaces which
+ * will be broken up into individual tokens by operator>>.
+ */
+struct StringLike {
+	virtual ~StringLike() {}
+};
+
+/**
+ * A class can inherit from this object to make it have string like
+ * traits. This is a compile time thing and does not add any overhead
+ * to the inherenting class.
+ */
+struct StringLikeTrait {
+    typedef StringLike ValueCategory;
+	virtual ~StringLikeTrait() {}
+};
+
+/**
+ * A class can inherit from this object to make it have value like
+ * traits. This is a compile time thing and does not add any overhead
+ * to the inherenting class.
+ */
+struct ValueLikeTrait {
+    typedef ValueLike ValueCategory;
+	virtual ~ValueLikeTrait() {}
+};
+
+/**
+ * Arg traits are used to get compile type specialization when parsing
+ * argument values. Using an ArgTraits you can specify the way that
+ * values gets assigned to any particular type during parsing. The two
+ * supported types are StringLike and ValueLike. ValueLike is the
+ * default and means that operator>> will be used to assign values to
+ * the type.
+ */
+template<typename T>
+class ArgTraits {
+	// This is a bit silly, but what we want to do is:
+	// 1) If there exists a specialization of ArgTraits for type X,
+	// use it.
+	//
+	// 2) If no specialization exists but X has the typename
+	// X::ValueCategory, use the specialization for X::ValueCategory.
+	//
+	// 3) If neither (1) nor (2) defines the trait, use the default
+	// which is ValueLike.
+
+	// This is the "how":
+	//
+	// test<T>(0) (where 0 is the NULL ptr) will match
+	// test(typename C::ValueCategory*) iff type T has the
+	// corresponding typedef. If it does not test(...) will be
+	// matched. This allows us to determine if T::ValueCategory
+	// exists by checking the sizeof for the test function (return
+	// value must have different sizeof).
+	template<typename C> static short test(typename C::ValueCategory*);
+	template<typename C> static long  test(...);
+	static const bool hasTrait = sizeof(test<T>(0)) == sizeof(short);
+
+	template <typename C, bool>
+	struct DefaultArgTrait {
+		typedef ValueLike ValueCategory;
+	};
+
+	template <typename C>
+	struct DefaultArgTrait<C, true> {
+		typedef typename C::ValueCategory ValueCategory;
+ 	};
+
+public:
+	typedef typename DefaultArgTrait<T, hasTrait>::ValueCategory ValueCategory;
+};
+
+} // namespace
+
+#endif
+