TfDictionaryLessThan Class Reference

Provides dictionary ordering binary predicate function on strings. More...

Public Member Functions
TF_API bool	operator() (const std::string &lhs, const std::string &rhs) const
	Return true if lhs is less than rhs in dictionary order. More...

Detailed Description

Provides dictionary ordering binary predicate function on strings.

The TfDictionaryLessThan class is a functor as defined by the STL standard. It compares strings using "dictionary" order: for example, the following strings are in dictionary order: ["abacus", "Albert", "albert", "baby", "Bert", "file01", "file001", "file2", "file10"]

Note that capitalization matters only if the strings differ by capitalization alone.

Characters whose ASCII value are inbetween upper- and lowercase letters, such as underscore, are sorted to come after all letters.

Definition at line 504 of file stringUtils.h.

Member Function Documentation

TF_API bool operator()	(	const std::string &	lhs,
		const std::string &	rhs
	)		const

Return true if lhs is less than rhs in dictionary order.

Normally this functor is used to supply an ordering functor for STL containers: for example,

*    map<string, DataType, TfDictionaryLessThan>  table;
*  

If you simply need to compare two strings, you can do so as follows:

*      bool aIsFirst = TfDictionaryLessThan()(aString, bString);
*  

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The documentation for this class was generated from the following file:

• pxr/base/tf/stringUtils.h