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)
28 lines
598 B
C
28 lines
598 B
C
#define x 3
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#define f(a) f(x * (a))
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#undef x
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#define x 2
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#define g f
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#define z z[0]
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#define h g(~
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#define m(a) a(w)
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#define w 0,1
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#define t(a) a
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#define p() int
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#define q(x) x
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#define r(x,y) x ## y
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#define str(x) # x
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f(y+1) + f(f(z)) % t(t(g)(0) + t)(1);
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g(x+(3,4)-w) | h 5) & m
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(f)^m(m);
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char c[2][6] = { str(hello), str() };
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/*
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* f(2 * (y+1)) + f(2 * (f(2 * (z[0])))) % f(2 * (0)) + t(1);
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* f(2 * (2+(3,4)-0,1)) | f(2 * (~ 5)) & f(2 * (0,1))^m(0,1);
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* char c[2][6] = { "hello", "" };
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*/
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#define L21 f(y+1) + f(f(z)) % t(t(g)(0) + t)(1);
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#define L22 g(x+(3,4)-w) | h 5) & m\
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(f)^m(m);
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L21
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L22
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