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MaskRay/b.c

Created November 6, 2022 21:43
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-fgnu89-inline / C99 / C++ inline modes
Raw
b.c
//__attribute__((gnu_inline))
EXTERN inline int foo(int a) { return a * a; }
int bar(int a) { return foo(a+1); }
Raw
b.sh
cc=gcc
[[ -n $1 ]] && cc=clang
for i in "" "-O2" "-fgnu89-inline" "-fgnu89-inline -O2"; do
echo ++++$i
$cc ${=i} -DEXTERN= -c b.c && readelf -Ws b.o | grep foo
echo ++++$i EXTERN=extern
$cc ${=i} -DEXTERN=extern -c b.c && readelf -Ws b.o | grep foo
done
for i in "" "-O2"; do
echo ++++c++ $i
$cc -xc++ ${=i} -DEXTERN= -c b.c && readelf -Ws b.o | grep foo
echo ++++c++ $i EXTERN=extern
$cc -xc++ ${=i} -DEXTERN=extern -c b.c && readelf -Ws b.o | grep foo
done
:
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MaskRay commented Nov 6, 2022 •
edited
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107543 c-family/c-cppbuiltin.cc: Undefine __GNUC_STDC_INLINE__ in C++ mode?

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