Ronald Oussoren added the comment:
I just confirmed that clang only uses the LSB for _Bool values by looking at
the assembly generated for the following code:
<quote>
#include <stdbool.h>
#include <stdio.h>
int main(void)
{
_Bool x;
*(unsigned char*)&x = 42;
printf("%d\n", (int)x);
return 0;
}
</quote>
The attached patch fixes the issue for me. The new testcase fails without the
changes to _struct.c and passes with those changes.
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Added file: http://bugs.python.org/file36010/issue-22012.txt
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