Symbol_test Class Reference

Description

Test:

properties of Literal and Symbol data types.

• a lib::Literal is just a thin wrapper for a const char *
• lib::Symbol uses the same implementation, but relies on character string constants interned into a symbol table.

Todo:

2023 this test is very much in preliminary shape, as the implementation of a real symbol table remains was lacking. At some point, a simplistic implementation of »interned strings« was added (TICKET #157) — yet still the actual relevance of unique Symbols remains nebulous

Definition at line 52 of file symbol-test.cpp.

Private Member Functions
virtual void	run (Arg)
void	checkLiteral ()
void	checkEmptyLiteral ()
void	checkSymbolCreation ()
void	checkComparisons ()
void	use_as_map_key ()

Member Function Documentation

run()

virtual void run ( Arg  )

inlineprivatevirtual

Definition at line 56 of file symbol-test.cpp.

References Symbol_test::checkComparisons(), Symbol_test::checkLiteral(), Symbol_test::checkSymbolCreation(), and Symbol_test::use_as_map_key().

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checkLiteral()

void checkLiteral ( )

inlineprivate

Definition at line 66 of file symbol-test.cpp.

References lib::hash_value(), and lib::test::showSizeof().

Referenced by Symbol_test::run().

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checkEmptyLiteral()

void checkEmptyLiteral ( )

inlineprivate

Definition at line 94 of file symbol-test.cpp.

checkSymbolCreation()

void checkSymbolCreation ( )

inlineprivate

Definition at line 108 of file symbol-test.cpp.

References Symbol::BOTTOM, Literal::c(), Symbol::EMPTY, Symbol::FAILURE, and lib::hash_value().

Referenced by Symbol_test::run().

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checkComparisons()

void checkComparisons ( )

inlineprivate

Definition at line 157 of file symbol-test.cpp.

References Literal::c().

Referenced by Symbol_test::run().

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use_as_map_key()

void use_as_map_key ( )

inlineprivate

Test:

use Literal and Symbol as keys in a tree map.

Note

neither Literal, nor Symbol defines an operator< so the map specialisation has to fall back on const char*, which are compared based on pointer identity. Contrast this with std::string, which does define its own ordering.

Definition at line 217 of file symbol-test.cpp.

Referenced by Symbol_test::run().

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Inheritance diagram for Symbol_test:

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

• symbol-test.cpp