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mihael
dcffee0672
The changes were tested by running: ``` $ ./build/stage3/bin/zig build -p stage4 -Denable-llvm -Dno-lib $ stage4/bin/zig build test-libc -Dlibc-test-path=<LIBC-TEST-PATH> -Dtest-filter=frexp -fqemu -fwasmtime --summary line Build Summary: 737/737 steps succeeded ``` The tests were passing even when it was a straightforward calling of Zig std library, but I wanted the `x is NaN` special case to match the behaviour described in `libc` manpages, and for it to be consistent with how infinities as arguments are handled in Zig.