diff --git a/cast.htm b/cast.htm deleted file mode 100644 index 9122c01..0000000 --- a/cast.htm +++ /dev/null @@ -1,150 +0,0 @@ - - - - - - - - -Header boost/cast.hpp Documentation - - - - -

c++boost.gif (8819 bytes)Header -boost/cast.hpp

- -

Cast Functions

- -

The header boost/cast.hpp -provides polymorphic_cast, polymorphic_downcast, -and numeric_cast function templates designed -to complement the C++ built-in casts.

- -

The program cast_test.cpp can be used to -verify these function templates work as expected.

-

Polymorphic casts

-

Pointers to polymorphic objects (objects of classes which define at least one -virtual function) are sometimes downcast or crosscast. Downcasting means -casting from a base class to a derived class. Crosscasting means casting -across an inheritance hierarchy diagram, such as from one base to the other in a -Y diagram hierarchy.

-

Such casts can be done with old-style casts, but this approach is never to be -recommended. Old-style casts are sorely lacking in type safety, suffer -poor readability, and are difficult to locate with search tools.

-

The C++ built-in static_cast can be used for efficiently downcasting -pointers to polymorphic objects, but provides no error detection for the case -where the pointer being cast actually points to the wrong derived class. The polymorphic_downcast -template retains the efficiency of static_cast for non-debug -compilations, but for debug compilations adds safety via an assert() that a dynamic_cast -succeeds.

-

The C++ built-in dynamic_cast can be used for downcasts and crosscasts -of pointers to polymorphic objects, but error notification in the form of a -returned value of 0 is inconvenient to test, or worse yet, easy to forget to -test. The polymorphic_cast template performs a dynamic_cast, -and throws an exception if the dynamic_cast returns 0.

-

A polymorphic_downcast is preferred when debug-mode tests will cover -100% of the object types possibly cast and when non-debug-mode efficiency is an -issue. If these two conditions are not present, polymorphic_cast is -preferred. It must also be used for crosscasts. It does an assert( -dynamic_cast<Derived>(x) == x ) where x is the base pointer, ensuring that -not only is a non-zero pointer returned, but also that it correct in the -presence of multiple inheritance. Warning:: Because polymorphic_downcast -uses assert(), it violates the one definition rule (ODR) if NDEBUG is inconsistently -defined across translation units. [See ISO Std 3.2]

-

The C++ built-in dynamic_cast must be used to cast references rather -than pointers. It is also the only cast that can be used to check whether -a given interface is supported; in that case a return of 0 isn't an error -condition.

-

polymorphic_cast and polymorphic_downcast synopsis

-
- 
namespace boost {
-
-template <class Derived, class Base>
-inline Derived polymorphic_cast(Base* x);
-// Throws: std::bad_cast if ( dynamic_cast<Derived>(x) == 0 )
-// Returns: dynamic_cast<Derived>(x)
-
-template <class Derived, class Base>
-inline Derived polymorphic_downcast(Base* x);
-// Effects: assert( dynamic_cast<Derived>(x) == x );
-// Returns: static_cast<Derived>(x)
-
-}
-
-

polymorphic_downcast example

-
- 
#include <boost/cast.hpp>
-...
-class Fruit { public: virtual ~Fruit(){}; ... };
-class Banana : public Fruit { ... };
-...
-void f( Fruit * fruit ) {
-// ... logic which leads us to believe it is a Banana
-  Banana * banana = boost::polymorphic_downcast<Banana*>(fruit);
-  ...
-
-

numeric_cast

-

A static_cast or implicit conversion will not -detect failure to preserve range for numeric casts. The numeric_cast function -templates are similar to static_cast and certain (dubious) -implicit conversions in this respect, except that they detect loss of numeric -range. An exception is thrown when a runtime value-preservation check fails.

-

The requirements on the argument and result types are:

-
- -
-

numeric_cast synopsis

-
- 
namespace boost {
-
-class bad_numeric_cast : public std::bad_cast {...};
-
-template<typename Target, typename Source>
-  inline Target numeric_cast(Source arg);
-    // Throws:  bad_numeric_cast unless, in converting arg from Source to Target,
-    //          there is no loss of negative range, and no underflow, and no
-    //          overflow, as determined by std::numeric_limits
-    // Returns: static_cast<Target>(arg)
-
-}
-
-

numeric_cast example

-
- 
#include <boost/cast.hpp>
-using namespace boost::cast;
-
-void ariane(double vx)
-{
-    ...
-    unsigned short dx = numeric_cast<unsigned short>(vx);
-    ...
-}
-
-

numeric_cast rationale

-

The form of the throws condition is specified so that != is not a required -operation.

-

History

-

polymorphic_cast was suggested by Bjarne Stroustrup in "The C++ -Programming Language".
-polymorphic_downcast was contributed by Dave -Abrahams.
-numeric_cast was contributed by Kevlin -Henney.

-
-

Revised 06 January, 2001

-

© Copyright boost.org 1999. Permission to copy, use, modify, sell and -distribute this document is granted provided this copyright notice appears in -all copies. This document is provided "as is" without express or -implied warranty, and with no claim as to its suitability for any purpose.

- - - - diff --git a/cast_test.cpp b/cast_test.cpp deleted file mode 100644 index 091cfe6..0000000 --- a/cast_test.cpp +++ /dev/null @@ -1,154 +0,0 @@ -// boost utility cast test program -----------------------------------------// - -// (C) Copyright boost.org 1999. Permission to copy, use, modify, sell -// and distribute this software is granted provided this copyright -// notice appears in all copies. This software is provided "as is" without -// express or implied warranty, and with no claim as to its suitability for -// any purpose. - -// See http://www.boost.org for most recent version including documentation. - -// Revision History -// 20 Jan 01 removed use of for portability to raw GCC (David Abrahams) -// 28 Jun 00 implicit_cast removed (Beman Dawes) -// 30 Aug 99 value_cast replaced by numeric_cast -// 3 Aug 99 Initial Version - -#include -#include -#include // for DBL_MAX (Peter Schmid) -#include - -# if SCHAR_MAX == LONG_MAX -# error "This test program doesn't work if SCHAR_MAX == LONG_MAX" -# endif - -using namespace boost; -using std::cout; - -namespace -{ - struct Base - { - virtual char kind() { return 'B'; } - }; - - struct Base2 - { - virtual char kind2() { return '2'; } - }; - - struct Derived : public Base, Base2 - { - virtual char kind() { return 'D'; } - }; -} - - -int main( int argc, char * argv[] ) -{ - cout << "Usage: test_casts [n], where n omitted or is:\n" - " 1 = execute #1 assert failure (#ifndef NDEBUG)\n" - " 2 = execute #2 assert failure (#ifndef NDEBUG)\n" - "Example: test_casts 2\n\n"; - -# ifdef NDEBUG - cout << "NDEBUG is defined\n"; -# else - cout << "NDEBUG is not defined\n"; -# endif - - cout << "\nBeginning tests...\n"; - -// test polymorphic_cast ---------------------------------------------------// - - // tests which should succeed - Base * base = new Derived; - Base2 * base2 = 0; - Derived * derived = 0; - derived = polymorphic_downcast( base ); // downcast - assert( derived->kind() == 'D' ); - - derived = 0; - derived = polymorphic_cast( base ); // downcast, throw on error - assert( derived->kind() == 'D' ); - - base2 = polymorphic_cast( base ); // crosscast - assert( base2->kind2() == '2' ); - - // tests which should result in errors being detected - int err_count = 0; - base = new Base; - - if ( argc > 1 && *argv[1] == '1' ) - { derived = polymorphic_downcast( base ); } // #1 assert failure - - bool caught_exception = false; - try { derived = polymorphic_cast( base ); } - catch (std::bad_cast) - { cout<<"caught bad_cast\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - // the following is just so generated code can be inspected - if ( derived->kind() == 'B' ) ++err_count; - -// test implicit_cast and numeric_cast -------------------------------------// - - // tests which should succeed - long small_value = 1; - long small_negative_value = -1; - long large_value = LONG_MAX; - long large_negative_value = LONG_MIN; - signed char c = 0; - - c = large_value; // see if compiler generates warning - - c = numeric_cast( small_value ); - assert( c == 1 ); - c = 0; - c = numeric_cast( small_value ); - assert( c == 1 ); - c = 0; - c = numeric_cast( small_negative_value ); - assert( c == -1 ); - - // These tests courtesy of Joe R NWP Swatosh - assert( 0.0f == numeric_cast( 0.0 ) ); - assert( 0.0 == numeric_cast( 0.0 ) ); - - // tests which should result in errors being detected - - caught_exception = false; - try { c = numeric_cast( large_value ); } - catch (bad_numeric_cast) - { cout<<"caught bad_numeric_cast #1\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - - caught_exception = false; - try { c = numeric_cast( large_negative_value ); } - catch (bad_numeric_cast) - { cout<<"caught bad_numeric_cast #2\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - - unsigned long ul; - caught_exception = false; - try { ul = numeric_cast( large_negative_value ); } - catch (bad_numeric_cast) - { cout<<"caught bad_numeric_cast #3\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - - caught_exception = false; - try { ul = numeric_cast( small_negative_value ); } - catch (bad_numeric_cast) - { cout<<"caught bad_numeric_cast #4\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - - caught_exception = false; - try { numeric_cast( DBL_MAX ); } - catch (bad_numeric_cast) - { cout<<"caught bad_numeric_cast #5\n"; caught_exception = true; } - if ( !caught_exception ) ++err_count; - - cout << err_count << " errors detected\nTest " - << (err_count==0 ? "passed\n" : "failed\n"); - return err_count; -} // main diff --git a/index.htm b/index.htm deleted file mode 100644 index 079576c..0000000 --- a/index.htm +++ /dev/null @@ -1,39 +0,0 @@ - - - - - - - -Boost Conversion Library - - - - -

Boost -Conversion Library

- -

The Conversion Library improves program safety and clarity by performing -otherwise messy conversions.  It includes cast-style function templates designed to complement the C++ -Standard's built-in casts.

-

To reduce coupling, particularly to standard library IOStreams, the Boost -Conversion Library is -supplied by several headers:

-
    -
  • The boost/cast header provides polymorphic_cast<> - and polymorphic_downcast<> to perform safe casting between - polymorphic types, and numeric_cast<> to perform safe casting - between numeric types.
    -
    • -
  • The boost/lexical_cast header provides lexical_cast<> - general literal text conversions, such as an int represented as - a string, or vice-versa.
    • -
-
-

Revised 06 January, 2001 -

- - - - diff --git a/lexical_cast.htm b/lexical_cast.htm deleted file mode 100644 index 1215a52..0000000 --- a/lexical_cast.htm +++ /dev/null @@ -1,223 +0,0 @@ - - - - - lexical_cast - - - - -

c++boost.gif (8819 bytes)Header - boost/lexical_cast.hpp

- -
-

Motivation

- Sometimes a value must be converted to a literal text form, such as an int - represented as a string, or vice-versa, when a string - is interpreted as an int. Such examples are common when converting - between data types internal to a program and representation external to a - program, such as windows and configuration files. -

- The standard C and C++ libraries offer a number of facilities for performing - such conversions. However, they vary with their ease of use, extensibility, and - safety. -

- For instance, there are a number of limitations with the family of standard C - functions typified by atoi: -

    -
  • - Conversion is supported in one direction only: from text to internal data type. - Converting the other way using the C library requires either the inconvenience - and compromised safety of the sprintf function, or the loss of - portability associated with non-standard functions such as itoa. -
    • -
  • - The range of types supported is only a subset of the built-in numeric types, - namely int, long, and double. -
    • -
  • - The range of types cannot be extended in a uniform manner. For instance, - conversion from string representation to complex or rational. -
    • -
- The standard C functions typified by strtol have the same basic - limitations, but offer finer control over the conversion process. However, for - the common case such control is often either not required or not used. The scanf - family of functions offer even greater control, but also lack safety and ease - of use. -

- The standard C++ library offers stringstream for the kind of - in-core formatting being discussed. It offers a great deal of control over the - formatting and conversion of I/O to and from arbitrary types through text. - However, for simple conversions direct use of stringstream can be - either clumsy (with the introduction of extra local variables and the loss of - infix-expression convenience) or obscure (where stringstream - objects are created as temporary objects in an expression). Facets provide a - comprehensive concept and facility for controlling textual representation, but - their perceived complexity and high entry level requires an extreme degree of - involvement for simple conversions, and excludes all but a few programmers. -

- The lexical_cast function template offers a convenient and - consistent form for supporting common conversions to and from arbitrary types - when they are represented as text. The simplification it offers is in - expression-level convenience for such conversions. For more involved - conversions, such as where precision or formatting need tighter control than is - offered by the default behavior of lexical_cast, the conventional - stringstream approach is recommended. Where the conversions are - numeric to numeric, numeric_cast - may offer more reasonable behavior than lexical_cast. -

- For a good discussion of the options and issues involved in string-based - formatting, including comparison of stringstream, lexical_cast, - and others, see Herb Sutter's article, - The String Formatters of Manor Farm. -

-

-

Examples

- The following example treats command line arguments as a sequence of numeric - data:
- 
-int main(int argc, char * argv[])
-{
-    using boost::lexical_cast;
-    using boost::bad_lexical_cast;
-
-    std::vector<short> args;
-
-    while(*++argv)
-    {
-        try
-        {
-            args.push_back(lexical_cast<short>(*argv));
-        }
-        catch(bad_lexical_cast &)
-        {
-            args.push_back(0);
-        }
-    }
-    ...
-}
-
-
The following example uses numeric data in a string expression:
- 
-void log_message(const std::string &);
-
-void log_errno(int yoko)
-{
-    log_message("Error " + boost::lexical_cast<std::string>(yoko) + ": " + strerror(yoko));
-}
-
-
-
-

Synopsis

- Library features defined in "boost/lexical_cast.hpp": -
- 
-namespace boost
-{
-    class bad_lexical_cast;
-    template<typename Target, typename Source>
-      Target lexical_cast(Source arg);
-}
-
-
Unit test defined in "lexical_cast_test.cpp". -

-

-

lexical_cast

-
- 
-template<typename Target, typename Source>
-  Target lexical_cast(Source arg);
-
-
Returns the result of streaming arg into a - standard library string-based stream and then out as a Target object. - Where Target is either std::string - or std::wstring, stream extraction takes the whole content - of the string, including spaces, rather than relying on the default - operator>> behavior. - If the conversion is unsuccessful, a - bad_lexical_cast exception is thrown. -

- The requirements on the argument and result types are: -

    -
  • - Source is OutputStreamable, meaning that an operator<< - is defined that takes a std::ostream or std::wostream object on the - left hand side and an instance of the argument type on the right. -
    • -
  • - Target is InputStreamable, meaning that an operator>> - is defined that takes a std::istream or std::wistream object on the left hand side - and an instance of the result type on the right. -
    • -
  • - Both Source and Target are CopyConstructible [20.1.3]. -
    • -
  • - Target is DefaultConstructible, meaning that it is possible - to default-initialize an object of that type [8.5, 20.1.4]. -
    • -
- The character type of the underlying stream is assumed to be char unless - either the Source or the Target requires wide-character - streaming, in which case the underlying stream uses wchar_t. - Source types that require wide-character streaming are wchar_t, - wchar_t *, and std::wstring. Target types that - require wide-character streaming are wchar_t and std::wstring. -

- Where a higher degree of control is required over conversions, std::stringstream - and std::wstringstream offer a more appropriate path. Where non-stream-based conversions are - required, lexical_cast - is the wrong tool for the job and is not special-cased for such scenarios. -

-

-

bad_lexical_cast

-
- 
-class bad_lexical_cast : public std::bad_cast
-{
-public:
-    ... // same member function interface as std::exception
-};
-
-
Exception used to indicate runtime lexical_cast - failure. -
-

Changes

-
    -
  • The previous version of lexical_cast used the default stream precision for reading - and writing floating-point numbers. For numerics that have a corresponding specialization of - std::numeric_limits, the current version now chooses a precision to match. -
  • The previous version of lexical_cast did not support conversion to or from any - wide-character-based types. For compilers with full language and library support for wide characters, - lexical_cast now supports conversions from wchar_t, wchar_t *, - and std::wstring and to wchar_t and std::wstring. -
  • The previous version of lexical_cast assumed that the conventional stream extractor - operators were sufficient for reading values. However, string I/O is asymmetric, with the result - that spaces play the role of I/O separators rather than string content. The current version fixes - this error for std::string and, where supported, std::wstring: - lexical_cast<std::string>("Hello, World") succeeds instead of failing with - a bad_lexical_cast exception. -
  • The previous version of lexical_cast allowed unsafe and meaningless conversions to - pointers. The current version now throws a bad_lexical_cast for conversions to pointers: - lexical_cast<char *>("Goodbye, World") now throws an exception instead of - causing undefined behavior. -
-

-

-
© Copyright Kevlin Henney, 2000–2003
- - diff --git a/lexical_cast_test.cpp b/lexical_cast_test.cpp deleted file mode 100644 index 9072821..0000000 --- a/lexical_cast_test.cpp +++ /dev/null @@ -1,290 +0,0 @@ -// Unit test for boost::lexical_cast. -// -// See http://www.boost.org for most recent version, including documentation. -// -// Copyright Terje Slettebų and Kevlin Henney, 2003. -// -// Permission to use, copy, modify, and distribute this software for any -// purpose is hereby granted without fee, provided that this copyright and -// permissions notice appear in all copies and derivatives. -// -// This software is provided "as is" without express or implied warranty. - -#include - -#if defined(__INTEL_COMPILER) -#pragma warning(disable: 193 383 488 981 1418 1419) -#elif defined(BOOST_MSVC) -#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800) -#endif - -#include -#include -#include - -#if defined(BOOST_NO_STRINGSTREAM) || \ - defined(BOOST_NO_STD_WSTRING) || \ - defined(BOOST_NO_STD_LOCALE) || \ - defined(BOOST_NO_INTRINSIC_WCHAR_T) -#define DISABLE_WIDE_CHAR_SUPPORT -#endif - -using namespace boost; - -void test_conversion_to_char(); -void test_conversion_to_int(); -void test_conversion_to_double(); -void test_conversion_to_bool(); -void test_conversion_to_string(); -void test_conversion_from_to_wchar_t_alias(); -void test_conversion_to_pointer(); -void test_conversion_from_wchar_t(); -void test_conversion_to_wchar_t(); -void test_conversion_from_wstring(); -void test_conversion_to_wstring(); - -unit_test_framework::test_suite *init_unit_test_suite(int, char **) -{ - unit_test_framework::test_suite *suite = - BOOST_TEST_SUITE("lexical_cast unit test"); - suite->add(BOOST_TEST_CASE(test_conversion_to_char)); - suite->add(BOOST_TEST_CASE(test_conversion_to_int)); - suite->add(BOOST_TEST_CASE(test_conversion_to_double)); - suite->add(BOOST_TEST_CASE(test_conversion_to_bool)); - suite->add(BOOST_TEST_CASE(test_conversion_from_to_wchar_t_alias)); - suite->add(BOOST_TEST_CASE(test_conversion_to_pointer)); - suite->add(BOOST_TEST_CASE(test_conversion_to_string)); - #ifndef DISABLE_WIDE_CHAR_SUPPORT - suite->add(BOOST_TEST_CASE(test_conversion_from_wchar_t)); - suite->add(BOOST_TEST_CASE(test_conversion_to_wchar_t)); - suite->add(BOOST_TEST_CASE(test_conversion_from_wstring)); - suite->add(BOOST_TEST_CASE(test_conversion_to_wstring)); - #endif - return suite; -} - -void test_conversion_to_char() -{ - BOOST_CHECK_EQUAL('A', lexical_cast('A')); - BOOST_CHECK_EQUAL(' ', lexical_cast(' ')); - BOOST_CHECK_EQUAL('1', lexical_cast(1)); - BOOST_CHECK_EQUAL('0', lexical_cast(0)); - BOOST_CHECK_THROW(lexical_cast(123), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL('1', lexical_cast(1.0)); - BOOST_CHECK_EQUAL('1', lexical_cast(true)); - BOOST_CHECK_EQUAL('0', lexical_cast(false)); - BOOST_CHECK_EQUAL('A', lexical_cast("A")); - BOOST_CHECK_EQUAL(' ', lexical_cast(" ")); - BOOST_CHECK_THROW(lexical_cast(""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL('A', lexical_cast(std::string("A"))); - BOOST_CHECK_EQUAL(' ', lexical_cast(std::string(" "))); - BOOST_CHECK_THROW( - lexical_cast(std::string("")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::string("Test")), boost::bad_lexical_cast); -} - -void test_conversion_to_int() -{ - BOOST_CHECK_EQUAL(1,lexical_cast('1')); - BOOST_CHECK_EQUAL(0,lexical_cast('0')); - BOOST_CHECK_THROW(lexical_cast('A'),boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(1,lexical_cast(1)); - BOOST_CHECK_EQUAL( - std::numeric_limits::max(), - lexical_cast(std::numeric_limits::max())); - BOOST_CHECK_EQUAL(1,lexical_cast(1.0)); - - BOOST_CHECK_THROW(lexical_cast(1.23), boost::bad_lexical_cast); - - BOOST_CHECK_THROW(lexical_cast(1e20), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(1, lexical_cast(true)); - BOOST_CHECK_EQUAL(0, lexical_cast(false)); - BOOST_CHECK_EQUAL(123, lexical_cast("123")); - BOOST_CHECK_THROW( - lexical_cast(" 123"), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast(""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(123, lexical_cast("123")); - BOOST_CHECK_EQUAL(123,lexical_cast(std::string("123"))); - BOOST_CHECK_THROW( - lexical_cast(std::string(" 123")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::string("")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::string("Test")), boost::bad_lexical_cast); -} - -void test_conversion_to_double() -{ - BOOST_CHECK_EQUAL(1.0, lexical_cast('1')); - BOOST_CHECK_THROW(lexical_cast('A'), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(1.0, lexical_cast(1)); - BOOST_CHECK_EQUAL(1.23, lexical_cast(1.23)); - BOOST_CHECK_CLOSE( - std::numeric_limits::max() / 2, - lexical_cast(std::numeric_limits::max() / 2), - std::numeric_limits::epsilon()); - BOOST_CHECK_EQUAL(1.0, lexical_cast(true)); - BOOST_CHECK_EQUAL(0.0, lexical_cast(false)); - BOOST_CHECK_EQUAL(1.23, lexical_cast("1.23")); - BOOST_CHECK_THROW(lexical_cast(""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(1.23, lexical_cast(std::string("1.23"))); - BOOST_CHECK_THROW( - lexical_cast(std::string("")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::string("Test")), boost::bad_lexical_cast); -} - -void test_conversion_to_bool() -{ - BOOST_CHECK_EQUAL(true, lexical_cast('1')); - BOOST_CHECK_EQUAL(false, lexical_cast('0')); - BOOST_CHECK_THROW(lexical_cast('A'), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(true, lexical_cast(1)); - BOOST_CHECK_EQUAL(false, lexical_cast(0)); - BOOST_CHECK_THROW(lexical_cast(123), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(true, lexical_cast(1.0)); - BOOST_CHECK_EQUAL(false, lexical_cast(0.0)); - BOOST_CHECK_EQUAL(true, lexical_cast(true)); - BOOST_CHECK_EQUAL(false, lexical_cast(false)); - BOOST_CHECK_EQUAL(true, lexical_cast("1")); - BOOST_CHECK_EQUAL(false, lexical_cast("0")); - BOOST_CHECK_THROW(lexical_cast(""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(true, lexical_cast("1")); - BOOST_CHECK_EQUAL(false, lexical_cast("0")); - BOOST_CHECK_EQUAL(true, lexical_cast(std::string("1"))); - BOOST_CHECK_EQUAL(false, lexical_cast(std::string("0"))); - BOOST_CHECK_THROW( - lexical_cast(std::string("")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::string("Test")), boost::bad_lexical_cast); -} - -void test_conversion_to_string() -{ - BOOST_CHECK_EQUAL("A", lexical_cast('A')); - BOOST_CHECK_EQUAL(" ", lexical_cast(' ')); - BOOST_CHECK_EQUAL("123", lexical_cast(123)); - BOOST_CHECK_EQUAL("1.23", lexical_cast(1.23)); - BOOST_CHECK_EQUAL("1.111111111", lexical_cast(1.111111111)); - BOOST_CHECK_EQUAL("1",lexical_cast(true)); - BOOST_CHECK_EQUAL("0",lexical_cast(false)); - BOOST_CHECK_EQUAL("Test", lexical_cast("Test")); - BOOST_CHECK_EQUAL(" ", lexical_cast(" ")); - BOOST_CHECK_EQUAL("", lexical_cast("")); - BOOST_CHECK_EQUAL("Test", lexical_cast(std::string("Test"))); - BOOST_CHECK_EQUAL(" ", lexical_cast(std::string(" "))); - BOOST_CHECK_EQUAL("", lexical_cast(std::string(""))); -} - -void test_conversion_from_to_wchar_t_alias() -{ - BOOST_CHECK_EQUAL(123, lexical_cast("123")); - BOOST_CHECK_EQUAL(123, lexical_cast("123")); - BOOST_CHECK_EQUAL(123, lexical_cast("123")); - BOOST_CHECK_EQUAL(std::string("123"), - lexical_cast(static_cast(123))); - BOOST_CHECK_EQUAL(std::string("123"), lexical_cast(123u)); - BOOST_CHECK_EQUAL(std::string("123"), lexical_cast(123ul)); -} - -void test_conversion_to_pointer() -{ - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - #ifndef DISABLE_WIDE_CHAR_SUPPORT - BOOST_CHECK_THROW(lexical_cast("Test"), boost::bad_lexical_cast); - #endif -} - -void test_conversion_from_wchar_t() -{ - #ifndef DISABLE_WIDE_CHAR_SUPPORT - BOOST_CHECK_EQUAL(1, lexical_cast(L'1')); - BOOST_CHECK_THROW(lexical_cast(L'A'), boost::bad_lexical_cast); - - BOOST_CHECK_EQUAL(123, lexical_cast(L"123")); - BOOST_CHECK_THROW(lexical_cast(L""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast(L"Test"), boost::bad_lexical_cast); - - BOOST_CHECK_EQUAL(1.0, lexical_cast(L'1')); - BOOST_CHECK_THROW(lexical_cast(L'A'), boost::bad_lexical_cast); - - BOOST_CHECK_EQUAL(1.23, lexical_cast(L"1.23")); - BOOST_CHECK_THROW(lexical_cast(L""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast(L"Test"), boost::bad_lexical_cast); - - BOOST_CHECK_EQUAL(true, lexical_cast(L'1')); - BOOST_CHECK_EQUAL(false, lexical_cast(L'0')); - BOOST_CHECK_THROW(lexical_cast(L'A'), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(true, lexical_cast(L"1")); - BOOST_CHECK_EQUAL(false, lexical_cast(L"0")); - BOOST_CHECK_THROW(lexical_cast(L""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast(L"Test"), boost::bad_lexical_cast); - #endif -} - -void test_conversion_to_wchar_t() -{ - #ifndef DISABLE_WIDE_CHAR_SUPPORT - BOOST_CHECK_EQUAL(L'1', lexical_cast(1)); - BOOST_CHECK_EQUAL(L'0', lexical_cast(0)); - BOOST_CHECK_THROW(lexical_cast(123), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(L'1', lexical_cast(1.0)); - BOOST_CHECK_EQUAL(L'0', lexical_cast(0.0)); - BOOST_CHECK_EQUAL(L'1', lexical_cast(true)); - BOOST_CHECK_EQUAL(L'0', lexical_cast(false)); - BOOST_CHECK_EQUAL(L'A', lexical_cast(L'A')); - BOOST_CHECK_EQUAL(L' ', lexical_cast(L' ')); - BOOST_CHECK_EQUAL(L'A', lexical_cast(L"A")); - BOOST_CHECK_EQUAL(L' ', lexical_cast(L" ")); - BOOST_CHECK_THROW(lexical_cast(L""), boost::bad_lexical_cast); - BOOST_CHECK_THROW(lexical_cast(L"Test"), boost::bad_lexical_cast); - BOOST_CHECK_EQUAL(L'A', lexical_cast(std::wstring(L"A"))); - BOOST_CHECK_EQUAL(L' ', lexical_cast(std::wstring(L" "))); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"Test")), boost::bad_lexical_cast); - #endif -} - -void test_conversion_from_wstring() -{ - #ifndef DISABLE_WIDE_CHAR_SUPPORT - BOOST_CHECK_EQUAL(123, lexical_cast(std::wstring(L"123"))); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"Test")), boost::bad_lexical_cast); - - BOOST_CHECK_EQUAL(true, lexical_cast(std::wstring(L"1"))); - BOOST_CHECK_EQUAL(false, lexical_cast(std::wstring(L"0"))); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"")), boost::bad_lexical_cast); - BOOST_CHECK_THROW( - lexical_cast(std::wstring(L"Test")), boost::bad_lexical_cast); - #endif -} - -void test_conversion_to_wstring() -{ - #ifndef DISABLE_WIDE_CHAR_SUPPORT - BOOST_CHECK(L"123" == lexical_cast(123)); - BOOST_CHECK(L"1.23" == lexical_cast(1.23)); - BOOST_CHECK(L"1.111111111" == lexical_cast(1.111111111)); - BOOST_CHECK(L"1" == lexical_cast(true)); - BOOST_CHECK(L"0" == lexical_cast(false)); - BOOST_CHECK(L"A" == lexical_cast(L'A')); - BOOST_CHECK(L" " == lexical_cast(L' ')); - BOOST_CHECK(L"Test" == lexical_cast(L"Test")); - BOOST_CHECK(L" " == lexical_cast(L" ")); - BOOST_CHECK(L"" == lexical_cast(L"")); - BOOST_CHECK(L"Test" == lexical_cast(std::wstring(L"Test"))); - BOOST_CHECK(L" " == lexical_cast(std::wstring(L" "))); - BOOST_CHECK(L"" == lexical_cast(std::wstring(L""))); - #endif -} diff --git a/test.hpp b/test.hpp deleted file mode 100644 index 42870b9..0000000 --- a/test.hpp +++ /dev/null @@ -1,312 +0,0 @@ -// what: simple unit test framework -// who: developed by Kevlin Henney -// when: November 2000 -// where: tested with BCC 5.5, MSVC 6.0, and g++ 2.91 -// -// ChangeLog: -// 20 Jan 2001 - Fixed a warning for MSVC (Dave Abrahams) - -#ifndef TEST_INCLUDED -#define TEST_INCLUDED - -#include -#include -#include // for out-of-the-box g++ -#include - -namespace test // test tuple comprises name and nullary function (object) -{ - template - struct test - { - string_type name; - function_type action; - - static test make(string_type name, function_type action) - { - test result; // MSVC aggreggate initializer bugs - result.name = name; - result.action = action; - return result; - } - }; -} - -namespace test // failure exception used to indicate checked test failures -{ - class failure : public std::exception - { - public: // struction (default cases are OK) - - failure(const std::string & why) - : reason(why) - { - } - - // std::~string has no exception-specification (could throw anything), - // but we need to be compatible with std::~exception's empty one - // see std::15.4p13 and std::15.4p3 - ~failure() throw() - { - } - - public: // usage - - virtual const char * what() const throw() - { - return reason.c_str(); - } - - private: // representation - - std::string reason; - - }; -} - -namespace test // not_implemented exception used to mark unimplemented tests -{ - class not_implemented : public std::exception - { - public: // usage (default ctor and dtor are OK) - - virtual const char * what() const throw() - { - return "not implemented"; - } - - }; -} - -namespace test // test utilities -{ - inline void check(bool condition, const std::string & description) - { - if(!condition) - { - throw failure(description); - } - } - - inline void check_true(bool value, const std::string & description) - { - check(value, "expected true: " + description); - } - - inline void check_false(bool value, const std::string & description) - { - check(!value, "expected false: " + description); - } - - template - void check_equal( - const lhs_type & lhs, const rhs_type & rhs, - const std::string & description) - { - check(lhs == rhs, "expected equal values: " + description); - } - - template - void check_unequal( - const lhs_type & lhs, const rhs_type & rhs, - const std::string & description) - { - check(lhs != rhs, "expected unequal values: " + description); - } - - inline void check_null(const void* ptr, const std::string & description) - { - check(!ptr, "expected null pointer: " + description); - } - - inline void check_non_null(const void* ptr, const std::string & description) - { - check(ptr != 0, "expected non-null pointer: " + description); - } -} - -#define TEST_CHECK_THROW(expression, exception, description) \ - try \ - { \ - expression; \ - throw ::test::failure(description); \ - } \ - catch(exception &) \ - { \ - } - -namespace test // memory tracking (enabled if test new and delete linked in) -{ - class allocations - { - public: // singleton access - - static allocations & instance() - { - static allocations singleton; - return singleton; - } - - public: // logging - - void clear() - { - alloc_count = dealloc_count = 0; - } - - void allocation() - { - ++alloc_count; - } - - void deallocation() - { - ++dealloc_count; - } - - public: // reporting - - unsigned long allocated() const - { - return alloc_count; - } - - unsigned long deallocated() const - { - return dealloc_count; - } - - bool balanced() const - { - return alloc_count == dealloc_count; - } - - private: // structors (default dtor is fine) - - allocations() - : alloc_count(0), dealloc_count(0) - { - } - - private: // prevention - - allocations(const allocations &); - allocations & operator=(const allocations &); - - private: // state - - unsigned long alloc_count, dealloc_count; - - }; -} - -namespace test // tester is the driver class for a sequence of tests -{ - template - class tester - { - public: // structors (default destructor is OK) - - tester(test_iterator first_test, test_iterator after_last_test) - : begin(first_test), end(after_last_test) - { - } - - public: // usage - - bool operator()(); // returns true if all tests passed - - private: // representation - - test_iterator begin, end; - - private: // prevention - - tester(const tester &); - tester &operator=(const tester &); - - }; - - template - bool tester::operator()() - { - using namespace std; - - unsigned long passed = 0, failed = 0, unimplemented = 0; - - for(test_iterator current = begin; current != end; ++current) - { - cerr << "[" << current->name << "] " << flush; - string result = "passed"; // optimistic - - try - { - allocations::instance().clear(); - current->action(); - - if(!allocations::instance().balanced()) - { - unsigned long allocated = allocations::instance().allocated(); - unsigned long deallocated = allocations::instance().deallocated(); - ostrstream report; - report << "new/delete (" - << allocated << " allocated, " - << deallocated << " deallocated)" - << ends; - const char * text = report.str(); - report.freeze(false); - throw failure(text); - } - - ++passed; - } - catch(const failure & caught) - { - (result = "failed: ") += caught.what(); - ++failed; - } - catch(const not_implemented &) - { - result = "not implemented"; - ++unimplemented; - } - catch(const exception & caught) - { - (result = "exception: ") += caught.what(); - ++failed; - } - catch(...) - { - result = "failed with unknown exception"; - ++failed; - } - - cerr << result << endl; - } - - cerr << passed + failed << " tests: " - << passed << " passed, " - << failed << " failed"; - - if(unimplemented) - { - cerr << " (" << unimplemented << " not implemented)"; - } - - cerr << endl; - - return failed == 0; - } -} - -#endif - -// Copyright Kevlin Henney, 2000. All rights reserved. -// -// Permission to use, copy, modify, and distribute this software for any -// purpose is hereby granted without fee, provided that this copyright and -// permissions notice appear in all copies and derivatives, and that no -// charge may be made for the software and its documentation except to cover -// cost of distribution. -// -// This software is provided "as is" without express or implied warranty. diff --git a/test/Jamfile b/test/Jamfile deleted file mode 100644 index 2a274a9..0000000 --- a/test/Jamfile +++ /dev/null @@ -1,34 +0,0 @@ -# Signals library - -# Copyright (C) 2001-2003 Douglas Gregor - -# Permission to copy, use, sell and distribute this software is granted -# provided this copyright notice appears in all copies. Permission to modify -# the code and to distribute modified code is granted provided this copyright -# notice appears in all copies, and a notice that the code was modified is -# included with the copyright notice. This software is provided "as is" -# without express or implied warranty, and with no claim as to its suitability -# for any purpose. - -# For more information, see http://www.boost.org/ - - -# Testing Jamfile autogenerated from XML source -subproject libs/conversion/test ; - -# bring in rules for testing -SEARCH on testing.jam = $(BOOST_BUILD_PATH) ; -include testing.jam ; - -# Make tests run by default. -DEPENDS all : test ; - -{ - test-suite conversion - : [ run implicit_cast.cpp ] - [ compile-fail implicit_cast_fail.cpp ] - [ run ../cast_test.cpp ] - [ run ../lexical_cast_test.cpp ] - ; -} - \ No newline at end of file diff --git a/test/implicit_cast.cpp b/test/implicit_cast.cpp deleted file mode 100644 index 39aee56..0000000 --- a/test/implicit_cast.cpp +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright David Abrahams 2003. Permission to copy, use, -// modify, sell and distribute this software is granted provided this -// copyright notice appears in all copies. This software is provided -// "as is" without express or implied warranty, and with no claim as -// to its suitability for any purpose. - -#include -#include -#include - -using boost::implicit_cast; -using boost::type; - -template -type check_return(T) { return type(); } - -struct foo -{ - foo(char const*) {} - operator long() const { return 0; } -}; - -typedef type long_type; -typedef type foo_type; - -int main() -{ - type x = check_return(boost::implicit_cast(1)); - assert(boost::implicit_cast(1) == 1L); - - type f = check_return(boost::implicit_cast("hello")); - type z = check_return(boost::implicit_cast(foo("hello"))); - return 0; -} diff --git a/test/implicit_cast_fail.cpp b/test/implicit_cast_fail.cpp deleted file mode 100644 index 9805256..0000000 --- a/test/implicit_cast_fail.cpp +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright David Abrahams 2003. Permission to copy, use, -// modify, sell and distribute this software is granted provided this -// copyright notice appears in all copies. This software is provided -// "as is" without express or implied warranty, and with no claim as -// to its suitability for any purpose. - -#include -#include - -#define BOOST_INCLUDE_MAIN -#include - -using boost::implicit_cast; - -struct foo -{ - explicit foo(char const*) {} -}; - -int test_main(int, char*[]) -{ - foo x = implicit_cast("foobar"); -}