Xi Ruoyao via Gcc-help <gcc-help@xxxxxxxxxxx> writes: > On Sat, 2023-09-02 at 21:15 +0200, Andy via Gcc-help wrote: >> Some lines are like: >> # 1 "/usr/include/x86_64-linux-gnu/bits/pthread_stack_min.h" 1 3 4 >> >> 3 means - standard file >> >> whereas my header >> # 1 "/home/andrzej/wazne/gitmy/c-grammars/src/header.h" >> what is exact meaning of this numbers? > > See section 9 "Preprocessor Output" of "info cpp". > >> I want filter preprocessed file, throw away all lines from standard >> headers, but to leave preprocessed lines from main C file and all >> non-standard headers. > > Write a tool yourself. GCC is a compiler for compiling real programs, > not for supporting some "academical" or "learning" process. That's unnecessarily restrictive and hostile. Anyway, yes, see (cpp)Preprocessor Output for a description of the markers, to suppress them you can use -P, see (cpp)Invocation. -- Arsen Arsenović
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