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C backend assumes that user of header file includes stdio.h #381

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enedil opened this issue Sep 15, 2021 · 3 comments · Fixed by #382
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C backend assumes that user of header file includes stdio.h #381

enedil opened this issue Sep 15, 2021 · 3 comments · Fixed by #382
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@andreasabel
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C parser Issues concerning parser generating
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2.9.3

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@enedil
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enedil commented Sep 15, 2021 •
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In the C backend, none of the generated headers include any header from standard library. This is wrong, as Parser.h uses FILE*, which is defined in stdio.h. Thus, stdio.h should be also included.

BNFC version that I use: 2.9.1.
OS: Fedora 34
BNFC distribution: stack
enedil added a commit to enedil/bnfc that referenced this issue Sep 15, 2021
@enedil
C backend: Parser.h: #include <stdio.h>
4f1a00c 
Parser.h uses FILE*, however doesn't include stdio.h, even transitively.
This is an issue if using the C backend from Zig, where usage of C FILE
api is not needed.

Fixes BNFC#381.
@enedil enedil mentioned this issue Sep 15, 2021
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@andreasabel andreasabel added C parser Issues concerning parser generating labels Sep 16, 2021
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Thanks for reporting and the PR, @enedil! Is this also a problem with the C++ backends?

@andreasabel andreasabel added this to the 2.9.3 milestone Sep 16, 2021
@enedil
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enedil commented Sep 16, 2021 •
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Thanks for reporting and the PR, @enedil! Is this also a problem with the C++ backends?

It doesn't, since Parser.H includes vector and string, which transitively usually include lots of other standard headers. But that is not guaranteed. I can make this addition as well. Latest forced push also fixes the C++ version.

enedil added a commit to enedil/bnfc that referenced this issue Sep 16, 2021
@enedil
C, CPP backends: Parser.h: #include <stdio.h>
f3ab35e 
Parser.h uses FILE*, however doesn't include stdio.h, even transitively.
This is an issue if using the C backend from Zig, where usage of C FILE
api is not needed. The problem also is present in the CPP backend and
hereby fixed.

Fixes BNFC#381.
@andreasabel andreasabel self-assigned this Sep 16, 2021
andreasabel pushed a commit that referenced this issue Sep 16, 2021
@enedil @andreasabel
C, CPP backends: Parser.h: #include <stdio.h>
5eaa767 
Parser.h uses FILE*, however doesn't include stdio.h, even transitively.
This is an issue if using the C backend from Zig, where usage of C FILE
api is not needed. The problem also is present in the CPP backend and
hereby fixed.

Fixes #381.
andreasabel added a commit that referenced this issue Sep 16, 2021
@andreasabel
Fix #381: including stdio.h in parser.h (C++ NOSTL)
7d8ca45
@andreasabel
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Thanks @enedil, this is now fixed on master.

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C backend: Parser.h: #include <stdio.h> enedil/bnfc
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@andreasabel @enedil