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[Bug libstdc++/82452] New: <stdio.h> defines macros for getc and putc
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 06 Oct 2017 13:20:44 +0000
- Subject: [Bug libstdc++/82452] New: <stdio.h> defines macros for getc and putc
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82452
Bug ID: 82452
Summary: <stdio.h> defines macros for getc and putc
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
#include <stdio.h>
#ifdef getc
# error getc defined as macro
#endif
#ifdef putc
# error putc defined as macro
#endif
prog.cc:3:3: error: #error getc defined as macro
# error getc defined as macro
^~~~~
prog.cc:6:3: error: #error putc defined as macro
# error putc defined as macro
^~~~~
There are probably lots of other functions (in <stdio.h> and other C headers)
with the same problem.
Either we need to create our own <stdio.h> wrapper and then #include_next the C
one, or get libc to stop defining those macros for C++.
Creating the wrapper would work better (for all C libraries) but when we did
that for <stdlib.h> and <math.h> we broke lots of (invalid) code.
I'm inclined to do nothing.