I'm wondering about the existence of a macro that sets integer sizes in
bits. We'd like to define variables to AC_SUBST into header.in files to set
int32_t, int64_t, etc. based on the results of the desired macro.
I'm aware of the existence of AC_CHECK_SIZEOF that returns integer sizes in
bytes. If we have to write the macro ourselves we'd probably use these. I'm
just wondering if someone has already done the work to get the bit sizes
back. One macro call that sets results for long, long long, etc. would be
ideal.
Thanks.
jgw
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