GCC-15 compatibility #76
Description
A few days ago, GCC merged some stricter template checks into the 15.x branch:
https://trofi.github.io/posts/322-gcc-15-template-checking-improvements.html
Gentoo's CI caught a build failure that looks related in https://bugs.gentoo.org/936498. I've copy/pasted some of the compiler output below:
FAILED: CMakeFiles/libprimecount.dir/src/deleglise-rivat/S2_easy_libdivide.cpp.o
/usr/bin/x86_64-pc-linux-gnu-g++ -DENABLE_MULTIARCH_AVX512_BMI2 -Dlibprimecount_EXPORTS -I/var/tmp/portage/sci-mathematics/primecount-7.13/work/primecount-7.13/include -O2 -pipe -march=native -fno-diagnostics-color -fPIC -fno-diagnostics-color -Wno-uninitialized -MD -MT CMakeFiles/libprimecount.dir
In file included from /var/tmp/portage/sci-mathematics/primecount-7.13/work/primecount-7.13/src/deleglise-rivat/S2_easy_libdivide.cpp:35:
/var/tmp/portage/sci-mathematics/primecount-7.13/work/primecount-7.13/include/libdivide.h: In member function 'bool libdivide::divider<T, ALGO>::operator==(const libdivide::divider<T, ALGO>&) const':
/var/tmp/portage/sci-mathematics/primecount-7.13/work/primecount-7.13/include/libdivide.h:2018:41: error: 'const class libdivide::divider<T, ALGO>' has no member named 'denom'
2018 | return div.denom.magic == other.denom.magic &&
| ^~~~~
There's still a long way to go before GCC-15 is released, but we're starting early this time so that all the complaints don't flood in on the same day.