| /*============================================================================= |
| Boost.Wave: A Standard compliant C++ preprocessor library |
| http://www.boost.org/ |
| |
| Copyright (c) 2001-2010 Hartmut Kaiser. 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) |
| =============================================================================*/ |
| |
| // This sample is taken from the C++ standard 16.3.5.6 [cpp.scope] and was |
| // slightly modified (removed the '#include' directive) |
| |
| #define str(s) # s |
| #define xstr(s) str(s) |
| #define debug(s, t) printf("x" # s "= %d, x" # t "= %s", \ |
| x ## s, x ## t) |
| #define INCFILE(n) vers ## n /* from previous #include example */ |
| #define glue(a, b) a ## b |
| #define xglue(a, b) glue(a, b) |
| #define HIGHLOW "hello" |
| #define LOW LOW ", world" |
| debug(1, 2); |
| fputs(str(strncmp("abc\0d?", "abc", '\4', "\u1234") /* this goes away */ |
| == 0) str(: @\n), s); |
| /*#include*/ xstr(INCFILE(2).hpp) |
| glue(HIGH, LOW); |
| xglue(HIGH, LOW) |
| |
| // should expand to |
| //R #line 22 "t_1_013.cpp" |
| //R printf("x" "1" "= %d, x" "2" "= %s", x1, x2); |
| //R fputs("strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0" ": @\n", s); |
| //R |
| //R "vers2.hpp" |
| //R "hello"; |
| //R "hello" ", world" |
| |
| //H 10: t_1_013.cpp(13): #define |
| //H 08: t_1_013.cpp(13): str(s)=# s |
| //H 10: t_1_013.cpp(14): #define |
| //H 08: t_1_013.cpp(14): xstr(s)=str(s) |
| //H 10: t_1_013.cpp(15): #define |
| //H 08: t_1_013.cpp(15): debug(s, t)=printf("x" # s "= %d, x" # t "= %s", x ## s, x ## t) |
| //H 10: t_1_013.cpp(17): #define |
| //H 08: t_1_013.cpp(17): INCFILE(n)=vers ## n |
| //H 10: t_1_013.cpp(18): #define |
| //H 08: t_1_013.cpp(18): glue(a, b)=a ## b |
| //H 10: t_1_013.cpp(19): #define |
| //H 08: t_1_013.cpp(19): xglue(a, b)=glue(a, b) |
| //H 10: t_1_013.cpp(20): #define |
| //H 08: t_1_013.cpp(20): HIGHLOW="hello" |
| //H 10: t_1_013.cpp(21): #define |
| //H 08: t_1_013.cpp(21): LOW=LOW ", world" |
| //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)] |
| //H 02: printf("x" "1" "= %d, x" "2" "= %s", x1, x2) |
| //H 03: printf("x" "1" "= %d, x" "2" "= %s", x1, x2) |
| //H 00: t_1_013.cpp(23): str(strncmp("abc\0d?", "abc", '\4', "\u1234") == 0), [t_1_013.cpp(13): str(s)=# s] |
| //H 02: "strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0" |
| //H 03: "strncmp(\"abc\\0d\?\", \"abc\", '\\4', \"\\u1234\") == 0" |
| //H 00: t_1_013.cpp(24): str(: @\n), [t_1_013.cpp(13): str(s)=# s] |
| //H 02: ": @\n" |
| //H 03: ": @\n" |
| //H 00: t_1_013.cpp(25): xstr(INCFILE(2).hpp), [t_1_013.cpp(14): xstr(s)=str(s)] |
| //H 00: t_1_013.cpp(25): INCFILE(2), [t_1_013.cpp(17): INCFILE(n)=vers ## n] |
| //H 02: vers2 |
| //H 03: vers2 |
| //H 02: str(vers2.hpp) |
| //H 00: t_1_013.cpp(14): str(vers2.hpp), [t_1_013.cpp(13): str(s)=# s] |
| //H 02: "vers2.hpp" |
| //H 03: "vers2.hpp" |
| //H 03: "vers2.hpp" |
| //H 00: t_1_013.cpp(26): glue(HIGH, LOW), [t_1_013.cpp(18): glue(a, b)=a ## b] |
| //H 02: HIGHLOW |
| //H 01: t_1_013.cpp(20): HIGHLOW |
| //H 02: "hello" |
| //H 03: "hello" |
| //H 03: "hello" |
| //H 00: t_1_013.cpp(27): xglue(HIGH, LOW), [t_1_013.cpp(19): xglue(a, b)=glue(a, b)] |
| //H 01: t_1_013.cpp(21): LOW |
| //H 02: LOW ", world" |
| //H 03: LOW ", world" |
| //H 02: glue(HIGH, LOW ", world") |
| //H 00: t_1_013.cpp(19): glue(HIGH, LOW ", world"), [t_1_013.cpp(18): glue(a, b)=a ## b] |
| //H 02: HIGHLOW ", world" |
| //H 01: t_1_013.cpp(20): HIGHLOW |
| //H 02: "hello" |
| //H 03: "hello" |
| //H 03: "hello" ", world" |
| //H 03: "hello" ", world" |