30df3189b1
* fix some macro expansion issues
* add some pp tests in tests/pp
* improved tcc -E output for better diff'ability
* remove -dD feature (quirky code, exotic feature,
didn't work well)
Based partially on ideas / researches from PipCet
Some issues remain with VA_ARGS macros (if used in a
rather tricky way).
Also, to keep it simple, the pp doesn't automtically
add any extra spaces to separate tokens which otherwise
would form wrong tokens if re-read from tcc -E output
(such as '+' '=') GCC does that, other compilers don't.
* cleanups
- #line 01 "file" / # 01 "file" processing
- #pragma comment(lib,"foo")
- tcc -E: forward some pragmas to output (pack, comment(lib))
- fix macro parameter list parsing mess from
a3fc543459
a715d7143d
(some coffee might help, next time ;)
- introduce TOK_PPSTR - to have character constants as
written in the file (similar to TOK_PPNUM)
- allow '\' appear in macros
- new functions begin/end_macro to:
- fix switching macro levels during expansion
- allow unget_tok to unget more than one tok
- slight speedup by using bitflags in isidnum_table
Also:
- x86_64.c : fix decl after statements
- i386-gen,c : fix a vstack leak with VLA on windows
- configure/Makefile : build on windows (MSYS) was broken
- tcc_warning: fflush stderr to keep output order (win32)
15 lines
412 B
C
15 lines
412 B
C
#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
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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') // this goes away
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== 0) str(: @\n), s);
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\#include xstr(INCFILE(2).h)
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glue(HIGH, LOW);
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xglue(HIGH, LOW)
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