Remove unused headers

Reduce build time by: - using iosfwd instead of iostream, where possible - where iostream is necessary but only used for debugging, making its inclusion conditional - removing old C-style headers I used IWYU to guide this work
2026-01-19 04:42:16 +00:00 · 2020-05-19 09:33:37 -07:00
parent 2970a40ac4
commit 895ea836e9
27 changed files with 37 additions and 37 deletions
--- a/include/boost/wave/cpplexer/re2clex/cpp_re.hpp
+++ b/include/boost/wave/cpplexer/re2clex/cpp_re.hpp
@@ -43,7 +43,7 @@
    }                                                                         \
    /**/

-#include <iostream>
+#include <iosfwd>

 ///////////////////////////////////////////////////////////////////////////////
 #define BOOST_WAVE_UPDATE_CURSOR()                                            \
--- a/samples/cpp_tokens/cpp_tokens.cpp
+++ b/samples/cpp_tokens/cpp_tokens.cpp
@@ -30,6 +30,8 @@
 #include "slex/cpp_slex_lexer.hpp"
 #endif // !defined(BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION)

+#include <iostream>
+
 ///////////////////////////////////////////////////////////////////////////////
 //  import required names
 using namespace boost::spirit::classic;
--- a/samples/cpp_tokens/cpp_tokens.hpp
+++ b/samples/cpp_tokens/cpp_tokens.hpp
@@ -18,7 +18,7 @@

 ///////////////////////////////////////////////////////////////////////////////
 //  include often used files from the stdlib
-#include <iostream>
+#include <iosfwd>
 #include <fstream>
 #include <string>

--- a/samples/cpp_tokens/slex/lexer.hpp
+++ b/samples/cpp_tokens/slex/lexer.hpp
@@ -54,7 +54,9 @@
 #include <vector>
 #include <stack>
 #include <utility> // for pair
+#if defined(BOOST_SPIRIT_DEBUG)
 #include <iostream>
+#endif
 #include <fstream>
 #include <boost/assert.hpp>
 #include <boost/limits.hpp>
--- a/samples/cpp_tokens/slex_iterator.hpp
+++ b/samples/cpp_tokens/slex_iterator.hpp
@@ -14,7 +14,7 @@
 #define SLEX_ITERATOR_HPP_AF0C37E3_CBD8_4F33_A225_51CF576FA61F_INCLUDED

 #include <string>
-#include <iostream>
+#include <iosfwd>

 #include <boost/assert.hpp>
 #include <boost/shared_ptr.hpp>
--- a/samples/hannibal/translation_unit_parser.h
+++ b/samples/hannibal/translation_unit_parser.h
@@ -13,6 +13,9 @@
 #define HANNIBAL_TRANSLATION_UNIT_GRAMMAR_H_INCLUDED

 #include <map>
+#if defined(HANNIBAL_TRACE_DECLARATIONS)
+#include <iostream>
+#endif

 #include <boost/assert.hpp>
 #include <boost/spirit/include/classic_core.hpp>
--- a/samples/lexed_tokens/lexed_tokens.cpp
+++ b/samples/lexed_tokens/lexed_tokens.cpp
@@ -12,7 +12,6 @@
 #include <iomanip>
 #include <fstream>
 #include <string>
-#include <vector>

 ///////////////////////////////////////////////////////////////////////////////
 //  Include Wave itself
--- a/samples/list_includes/list_includes.cpp
+++ b/samples/list_includes/list_includes.cpp
@@ -36,6 +36,8 @@
 // Include the default context trace policies
 #include <boost/wave/preprocessing_hooks.hpp>

+#include <iostream>
+
 ///////////////////////////////////////////////////////////////////////////////
 //  include lexer specifics, import lexer names
 #if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION == 0
--- a/samples/list_includes/list_includes.hpp
+++ b/samples/list_includes/list_includes.hpp
@@ -16,7 +16,7 @@

 ///////////////////////////////////////////////////////////////////////////////
 //  include often used files from the stdlib
-#include <iostream>
+#include <iosfwd>
 #include <fstream>
 #include <string>
 #include <vector>
--- a/samples/token_statistics/collect_token_statistics.hpp
+++ b/samples/token_statistics/collect_token_statistics.hpp
@@ -15,6 +15,7 @@

 #include <algorithm>
 #include <map>
+#include <iostream>

 #include <boost/assert.hpp>
 #include <boost/wave/token_ids.hpp>
--- a/samples/token_statistics/token_statistics.cpp
+++ b/samples/token_statistics/token_statistics.cpp
@@ -26,6 +26,8 @@

 #include "collect_token_statistics.hpp"

+#include <iostream>
+
 ///////////////////////////////////////////////////////////////////////////////
 //  import required names
 using namespace boost::spirit::classic;
--- a/samples/token_statistics/token_statistics.hpp
+++ b/samples/token_statistics/token_statistics.hpp
@@ -15,7 +15,7 @@

 ///////////////////////////////////////////////////////////////////////////////
 //  include often used files from the stdlib
-#include <iostream>
+#include <iosfwd>
 #include <fstream>
 #include <string>
 #include <vector>
--- a/samples/token_statistics/xlex_iterator.hpp
+++ b/samples/token_statistics/xlex_iterator.hpp
@@ -14,7 +14,7 @@
 #define XLEX_ITERATOR_HPP

 #include <string>
-#include <iostream>
+#include <iosfwd>

 #include <boost/assert.hpp>
 #include <boost/shared_ptr.hpp>
--- a/samples/waveidl/idl.cpp
+++ b/samples/waveidl/idl.cpp
@@ -32,6 +32,8 @@
 #include "idllexer/idl_re2c_lexer.hpp"
 #endif 

+#include <iostream>
+
 ///////////////////////////////////////////////////////////////////////////////
 //  include the grammar definitions, if these shouldn't be compiled separately
 //  (ATTENTION: _very_ large compilation times!)
--- a/samples/waveidl/idl.hpp
+++ b/samples/waveidl/idl.hpp
@@ -18,7 +18,7 @@

 ///////////////////////////////////////////////////////////////////////////////
 //  include often used files from the stdlib
-#include <iostream>
+#include <iosfwd>
 #include <fstream>
 #include <string>
 #include <vector>
--- a/samples/waveidl/idllexer/idl_lex_iterator.hpp
+++ b/samples/waveidl/idllexer/idl_lex_iterator.hpp
@@ -15,7 +15,7 @@
 #define IDL_LEX_ITERATOR_HPP_7926F865_E02F_4950_9EB5_5F453C9FF953_INCLUDED

 #include <string>
-#include <iostream>
+#include <iosfwd>

 #include <boost/assert.hpp>
 #include <boost/shared_ptr.hpp>
--- a/samples/waveidl/idllexer/idl_re.cpp
+++ b/samples/waveidl/idllexer/idl_re.cpp
@@ -10,14 +10,6 @@
    LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 =============================================================================*/

-#include <ctime>
-#include <cstdlib>
-#include <cstdio>
-#include <cstring>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
 #include <boost/config.hpp>

 #if defined(BOOST_HAS_UNISTD_H)
--- a/samples/waveidl/idllexer/idl_re.hpp
+++ b/samples/waveidl/idllexer/idl_re.hpp
@@ -13,16 +13,9 @@
 #if !defined(IDL_RE_HPP_BD62775D_1659_4684_872C_03C02543C9A5_INCLUDED)
 #define IDL_RE_HPP_BD62775D_1659_4684_872C_03C02543C9A5_INCLUDED

-#include <ctime>
-#include <cstdlib>
 #include <cstdio>
-#include <cstring>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>

 #include <string>
-
 #include <boost/config.hpp>

 #if defined(BOOST_HAS_UNISTD_H)
--- a/src/cpplexer/re2clex/cpp_re.cpp
+++ b/src/cpplexer/re2clex/cpp_re.cpp
@@ -17,13 +17,7 @@
 // disable stupid compiler warnings
 #include <boost/config/warning_disable.hpp>

-#include <ctime>
-#include <cstdlib>
-#include <cstdio>
-#include <cstring>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+#include <cstddef>

 #include <boost/wave/wave_config.hpp>          // configuration data

@@ -36,7 +30,6 @@
 #include <boost/detail/workaround.hpp>

 #include <boost/wave/token_ids.hpp>
-#include <boost/wave/cpplexer/re2clex/aq.hpp>
 #include <boost/wave/cpplexer/re2clex/scanner.hpp>
 #include <boost/wave/cpplexer/re2clex/cpp_re.hpp>

--- a/src/wave_config_constant.cpp
+++ b/src/wave_config_constant.cpp
@@ -14,7 +14,6 @@
 // disable stupid compiler warnings
 #include <boost/config/warning_disable.hpp>

-#include <cstring>
 #include <boost/preprocessor/stringize.hpp>

 #include <boost/wave/wave_config.hpp>
--- a/test/testlexers/test_lexertl_lexer.cpp
+++ b/test/testlexers/test_lexertl_lexer.cpp
@@ -9,8 +9,10 @@

 //  system headers
 #include <string>
-#include <iostream>
 #include <limits>
+#if defined(TESTLEXERS_TIMING)
+#include <iostream>
+#endif

 #include <boost/wave/wave_config.hpp>
 #undef BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION
--- a/test/testlexers/test_re2c_lexer.cpp
+++ b/test/testlexers/test_re2c_lexer.cpp
@@ -11,8 +11,10 @@
 #include <boost/config/warning_disable.hpp>

 //  system headers
-#include <string>
+#if defined(TESTLEXERS_TIMING)
 #include <iostream>
+#endif
+
 #include <limits>

 #include <boost/wave/wave_config.hpp>
--- a/test/testlexers/test_slex_lexer.cpp
+++ b/test/testlexers/test_slex_lexer.cpp
@@ -12,7 +12,9 @@

 //  system headers
 #include <string>
+#if defined(TESTLEXERS_TIMING)
 #include <iostream>
+#endif
 #include <limits>

 #include <boost/wave/wave_config.hpp>
--- a/test/testlexers/test_xlex_lexer.cpp
+++ b/test/testlexers/test_xlex_lexer.cpp
@@ -12,7 +12,9 @@

 //  system headers
 #include <string>
+#if defined(TESTLEXERS_TIMING)
 #include <iostream>
+#endif
 #include <limits>

 #include <boost/wave/wave_config.hpp>
--- a/test/testwave/testwave_app.cpp
+++ b/test/testwave/testwave_app.cpp
@@ -12,7 +12,7 @@

 // system headers
 #include <string>
-#include <iostream>
+#include <iosfwd>
 #include <vector>
 #include <ctime>

--- a/tool/cpp.cpp
+++ b/tool/cpp.cpp
@@ -36,6 +36,8 @@
 #include <boost/wave/cpplexer/cpp_lex_token.hpp>      // token type
 #include <boost/wave/cpplexer/cpp_lex_iterator.hpp>   // lexer type

+#include <iostream>
+
 ///////////////////////////////////////////////////////////////////////////////
 //  Include serialization support, if requested
 #if BOOST_WAVE_SERIALIZATION != 0
--- a/tool/cpp.hpp
+++ b/tool/cpp.hpp
@@ -16,7 +16,7 @@

 ///////////////////////////////////////////////////////////////////////////////
 //  include often used files from the stdlib
-#include <iostream>
+#include <iosfwd>
 #include <string>
 #include <vector>
 #include <algorithm>