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Add BOOST_PRAGMA_MESSAGE

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Peter Dimov
2017-12-04 00:55:14 +02:00
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11 changed files with 105 additions and 17 deletions
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<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__03_defects">Macros <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__03_defects">Macros
that describe C++03 defects</a></span></dt> that describe C++03 defects</a></span></dt>
<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_optional_features">Macros <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_optional_features">Macros
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</p> </p>
</td> </td>
</tr> </tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX17_ITERATOR_TRAITS</span></code>
</p>
</td>
<td>
<p>
The compiler does not support SFINAE-friendly <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">iterator_traits</span></code>.
</p>
</td>
</tr>
</tbody> </tbody>
</table></div> </table></div>
</div> </div>
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<tr> <tr>
<td> <td>
<p> <p>
<code class="computeroutput"><span class="identifier">BOOST_EXPLICIT_TEMPLATE_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_EXPLICIT_TEMPLATE_NON_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">,</span><span class="identifier">v</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">,</span><span class="identifier">v</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_EXPLICIT_TEMPLATE_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">)</span></code>
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_EXPLICIT_TEMPLATE_NON_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">,</span><span class="identifier">v</span><span class="special">)</span></code>
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">)</span></code>
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE</span><span class="special">(</span><span class="identifier">t</span><span class="special">,</span><span class="identifier">v</span><span class="special">)</span></code>
</p> </p>
</td> </td>
<td> <td>
@ -4452,6 +4473,8 @@
<td> <td>
<p> <p>
<code class="computeroutput"><span class="identifier">BOOST_LIKELY</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_LIKELY</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code>
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_UNLIKELY</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code> <code class="computeroutput"><span class="identifier">BOOST_UNLIKELY</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code>
</p> </p>
</td> </td>
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</p> </p>
</td> </td>
</tr> </tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_PRAGMA_MESSAGE</span><span class="special">(</span><span class="identifier">M</span><span class="special">)</span></code>
</p>
</td>
<td>
<p>
Expands to the equivalent of <code class="computeroutput"><span class="preprocessor">#pragma</span>
<span class="identifier">message</span><span class="special">(</span><span class="identifier">M</span><span class="special">)</span></code>.
<code class="computeroutput"><span class="identifier">M</span></code> must be a string
literal. Example: <code class="computeroutput"><span class="identifier">BOOST_PRAGMA_MESSAGE</span><span class="special">(</span><span class="string">"This header
is deprecated."</span><span class="special">)</span></code>.
</p>
</td>
</tr>
</tbody> </tbody>
</table></div> </table></div>
</div> </div>
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for libraries with separate source code</a> for libraries with separate source code</a>
</h3></div></div></div> </h3></div></div></div>
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<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_for_libraries_with_separate_source_code.macros_controlling_shared_library_symbol_visibility">Macros <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_for_libraries_with_separate_source_code.macros_controlling_shared_library_symbol_visibility">Macros
controlling shared library symbol visibility</a></span></dt> controlling shared library symbol visibility</a></span></dt>
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@ -27,7 +27,7 @@
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Compiler Warnings</a></span></dt> Compiler Warnings</a></span></dt>
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@ -26,7 +26,7 @@
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@ -39,7 +39,7 @@
</div> </div>
<div class="toc"> <div class="toc">
<p><b>Table of Contents</b></p> <p><b>Table of Contents</b></p>
<dl> <dl class="toc">
<dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform">Configuring <dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform">Configuring
Boost for Your Platform</a></span></dt> Boost for Your Platform</a></span></dt>
<dd><dl> <dd><dl>
@ -127,7 +127,7 @@
<a name="boost_config.configuring_boost_for_your_platform"></a><a class="link" href="index.html#boost_config.configuring_boost_for_your_platform" title="Configuring Boost for Your Platform">Configuring <a name="boost_config.configuring_boost_for_your_platform"></a><a class="link" href="index.html#boost_config.configuring_boost_for_your_platform" title="Configuring Boost for Your Platform">Configuring
Boost for Your Platform</a> Boost for Your Platform</a>
</h2></div></div></div> </h2></div></div></div>
<div class="toc"><dl> <div class="toc"><dl class="toc">
<dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.using_the_default_boost_configuration">Using <dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.using_the_default_boost_configuration">Using
the default boost configuration</a></span></dt> the default boost configuration</a></span></dt>
<dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.the__boost_config_hpp__header">The <dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.the__boost_config_hpp__header">The
@ -725,7 +725,7 @@
<a name="boost_config.configuring_boost_for_your_platform.advanced_configuration_usage"></a><a class="link" href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage" title="Advanced configuration usage">Advanced <a name="boost_config.configuring_boost_for_your_platform.advanced_configuration_usage"></a><a class="link" href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage" title="Advanced configuration usage">Advanced
configuration usage</a> configuration usage</a>
</h3></div></div></div> </h3></div></div></div>
<div class="toc"><dl> <div class="toc"><dl class="toc">
<dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage.example_1__creating_our_own_frozen_configuration">Example <dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage.example_1__creating_our_own_frozen_configuration">Example
1: creating our own frozen configuration</a></span></dt> 1: creating our own frozen configuration</a></span></dt>
<dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage.example_2__skipping_files_that_you_don_t_need">Example <dt><span class="section"><a href="index.html#boost_config.configuring_boost_for_your_platform.advanced_configuration_usage.example_2__skipping_files_that_you_don_t_need">Example
@ -992,7 +992,7 @@
</div> </div>
</div> </div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"><p><small>Last revised: July 21, 2017 at 18:08:20 GMT</small></p></td> <td align="left"><p><small>Last revised: December 03, 2017 at 22:51:50 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td> <td align="right"><div class="copyright-footer"></div></td>
</tr></table> </tr></table>
<hr> <hr>

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doc/macro_reference.qbk
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@ -1095,8 +1095,11 @@ In either case this macro has no effect on runtime behavior and performance
of code. of code.
]] ]]
[[`BOOST_EXPLICIT_TEMPLATE_TYPE(t)` [[`BOOST_EXPLICIT_TEMPLATE_TYPE(t)`
`BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t,v)` `BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t,v)`
`BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)` `BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)`
`BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t,v)`][ `BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t,v)`][
Some compilers silently "fold" different function template instantiations if Some compilers silently "fold" different function template instantiations if
some of the template parameters don't appear in the function parameter list. some of the template parameters don't appear in the function parameter list.
@ -1247,6 +1250,7 @@ If the compiler does not support this markup, `BOOST_NORETURN` is defined empty
additional macro `BOOST_NO_NORETURN` is defined. additional macro `BOOST_NO_NORETURN` is defined.
]] ]]
[[`BOOST_LIKELY(X)` [[`BOOST_LIKELY(X)`
`BOOST_UNLIKELY(X)`][ `BOOST_UNLIKELY(X)`][
These macros communicate to the compiler that the conditional expression `X` is likely These macros communicate to the compiler that the conditional expression `X` is likely
or unlikely to yield a positive result. The expression should result in a boolean value. or unlikely to yield a positive result. The expression should result in a boolean value.
@ -1275,6 +1279,8 @@ Usage example:
typedef unsigned int BOOST_MAY_ALIAS aliasing_uint; typedef unsigned int BOOST_MAY_ALIAS aliasing_uint;
`` ``
]] ]]
[[`BOOST_PRAGMA_MESSAGE(M)`][Expands to the equivalent of `#pragma message(M)`. `M` must
be a string literal. Example: `BOOST_PRAGMA_MESSAGE("This header is deprecated.")`.]]
] ]
[endsect] [endsect]

24
include/boost/config/pragma_message.hpp Normal file
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@ -0,0 +1,24 @@
#ifndef BOOST_CONFIG_PRAGMA_MESSAGE_HPP_INCLUDED
#define BOOST_CONFIG_PRAGMA_MESSAGE_HPP_INCLUDED
// Copyright 2017 Peter Dimov.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// BOOST_PRAGMA_MESSAGE("message")
#if defined(__GNUC__)
#define BOOST_PRAGMA_MESSAGE_IMPL_1(x) _Pragma(#x)
#define BOOST_PRAGMA_MESSAGE(x) BOOST_PRAGMA_MESSAGE_IMPL_1(message(x))
#elif defined(_MSC_VER)
#define BOOST_PRAGMA_MESSAGE_IMPL_2(x, f, ln) __pragma(message(f "(" #ln "): note: " x))
#define BOOST_PRAGMA_MESSAGE_IMPL_1(x, f, ln) BOOST_PRAGMA_MESSAGE_IMPL_2(x, f, ln)
#define BOOST_PRAGMA_MESSAGE(x) BOOST_PRAGMA_MESSAGE_IMPL_1(x, __FILE__, __LINE__)
#else
#define BOOST_PRAGMA_MESSAGE(x)
#endif
#endif // BOOST_CONFIG_PRAGMA_MESSAGE_HPP_INCLUDED

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@ -103,6 +103,7 @@ test-suite config
[ run cstdint_test2.cpp : : : <warnings>all <toolset>gcc:<cxxflags>"-Wno-long-long -Wextra" <toolset>darwin:<cxxflags>-Wno-long-long ] [ run cstdint_test2.cpp : : : <warnings>all <toolset>gcc:<cxxflags>"-Wno-long-long -Wextra" <toolset>darwin:<cxxflags>-Wno-long-long ]
[ compile cstdint_include_test.cpp : <warnings>all <toolset>gcc:<cxxflags>-Wextra ] [ compile cstdint_include_test.cpp : <warnings>all <toolset>gcc:<cxxflags>-Wextra ]
[ run config_build_check.cpp : : : [ requires int128 cxx11_constexpr cxx11_user_defined_literals ] ] [ run config_build_check.cpp : : : [ requires int128 cxx11_constexpr cxx11_user_defined_literals ] ]
[ compile pragma_message_test.cpp ]
; ;
obj has_clang_implicit_fallthrough : cmd_line_check.cpp : obj has_clang_implicit_fallthrough : cmd_line_check.cpp :

18
test/pragma_message_test.cpp Normal file
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@ -0,0 +1,18 @@
// Copyright 2017 Peter Dimov.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/config/pragma_message.hpp>
BOOST_PRAGMA_MESSAGE("first message")
#define MSG2 "second message"
BOOST_PRAGMA_MESSAGE(MSG2)
#include <boost/config.hpp> // BOOST_STRINGIZE
#define MSG3 third message
BOOST_PRAGMA_MESSAGE(BOOST_STRINGIZE(MSG3))