90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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http://www.boost.org/
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Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
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Software License, Version 1.0. (See accompanying file
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LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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// This sample is taken from the C++ standard 16.3.5.6 [cpp.scope] and was
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// slightly modified (removed the '#include' directive)
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#define str(s) # s
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#define xstr(s) str(s)
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#define debug(s, t) printf("x" # s "= %d, x" # t "= %s", \
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x ## s, x ## t)
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#define INCFILE(n) vers ## n /* from previous #include example */
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#define glue(a, b) a ## b
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#define xglue(a, b) glue(a, b)
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#define HIGHLOW "hello"
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#define LOW LOW ", world"
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debug(1, 2);
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fputs(str(strncmp("abc\0d?", "abc", '\4', "\u1234") /* this goes away */
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== 0) str(: @\n), s);
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/*#include*/ xstr(INCFILE(2).hpp)
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glue(HIGH, LOW);
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xglue(HIGH, LOW)
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// should expand to
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//R #line 22 "t_1_013.cpp"
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//R printf("x" "1" "= %d, x" "2" "= %s", x1, x2);
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//R fputs("strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0" ": @\n", s);
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//R
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//R "vers2.hpp"
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//R "hello";
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//R "hello" ", world"
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//H 10: t_1_013.cpp(13): #define
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//H 08: t_1_013.cpp(13): str(s)=# s
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//H 10: t_1_013.cpp(14): #define
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//H 08: t_1_013.cpp(14): xstr(s)=str(s)
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//H 10: t_1_013.cpp(15): #define
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//H 08: t_1_013.cpp(15): debug(s, t)=printf("x" # s "= %d, x" # t "= %s", x ## s, x ## t)
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//H 10: t_1_013.cpp(17): #define
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//H 08: t_1_013.cpp(17): INCFILE(n)=vers ## n
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//H 10: t_1_013.cpp(18): #define
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//H 08: t_1_013.cpp(18): glue(a, b)=a ## b
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//H 10: t_1_013.cpp(19): #define
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//H 08: t_1_013.cpp(19): xglue(a, b)=glue(a, b)
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//H 10: t_1_013.cpp(20): #define
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//H 08: t_1_013.cpp(20): HIGHLOW="hello"
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//H 10: t_1_013.cpp(21): #define
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//H 08: t_1_013.cpp(21): LOW=LOW ", world"
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//H 00: t_1_013.cpp(22): debug(1, 2), [t_1_013.cpp(15): debug(s, t)=printf("x" # s "= %d, x" # t "= %s", x ## s, x ## t)]
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//H 02: printf("x" "1" "= %d, x" "2" "= %s", x1, x2)
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//H 03: printf("x" "1" "= %d, x" "2" "= %s", x1, x2)
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//H 00: t_1_013.cpp(23): str(strncmp("abc\0d?", "abc", '\4', "\u1234") == 0), [t_1_013.cpp(13): str(s)=# s]
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//H 02: "strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0"
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//H 03: "strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0"
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//H 00: t_1_013.cpp(24): str(: @\n), [t_1_013.cpp(13): str(s)=# s]
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//H 02: ": @\n"
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//H 03: ": @\n"
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//H 00: t_1_013.cpp(25): xstr(INCFILE(2).hpp), [t_1_013.cpp(14): xstr(s)=str(s)]
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//H 00: t_1_013.cpp(25): INCFILE(2), [t_1_013.cpp(17): INCFILE(n)=vers ## n]
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//H 02: vers2
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//H 03: vers2
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//H 02: str(vers2.hpp)
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//H 00: t_1_013.cpp(14): str(vers2.hpp), [t_1_013.cpp(13): str(s)=# s]
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//H 02: "vers2.hpp"
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//H 03: "vers2.hpp"
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//H 03: "vers2.hpp"
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//H 00: t_1_013.cpp(26): glue(HIGH, LOW), [t_1_013.cpp(18): glue(a, b)=a ## b]
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//H 02: HIGHLOW
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//H 01: t_1_013.cpp(20): HIGHLOW
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//H 02: "hello"
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//H 03: "hello"
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//H 03: "hello"
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//H 00: t_1_013.cpp(27): xglue(HIGH, LOW), [t_1_013.cpp(19): xglue(a, b)=glue(a, b)]
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//H 01: t_1_013.cpp(21): LOW
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//H 02: LOW ", world"
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//H 03: LOW ", world"
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//H 02: glue(HIGH, LOW ", world")
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//H 00: t_1_013.cpp(19): glue(HIGH, LOW ", world"), [t_1_013.cpp(18): glue(a, b)=a ## b]
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//H 02: HIGHLOW ", world"
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//H 01: t_1_013.cpp(20): HIGHLOW
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//H 02: "hello"
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//H 03: "hello"
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//H 03: "hello" ", world"
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//H 03: "hello" ", world"
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