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Set rounding mode for some rounding functions of libm #953

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merged 1 commit into from
Apr 15, 2024

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Hagb
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@Hagb Hagb commented Apr 14, 2024

This PR rewrites fesetround and fegetround to set and get the rounding mode in x86emu, and applies the rounding mode on rounding functions ({,l,ll}rint{,f,l} and nearbyint{,f,l}). Test24 (feround) can pass with this patch.
The rounding mode can also be applied on other math functions if needed.

This commit rewrites fesetround and fegetround to set and get the
rounding mode in x86emu, and applies the rounding mode on rounding
functions (`{,l,ll}rint{,f,l}` and `nearbyint{,f,l}`).
@Hagb
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Hagb commented Apr 14, 2024

Well I have a question. What is meant by "weak" for a symbol map? And in which situation should we use a weak map?

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ptitSeb commented Apr 15, 2024

Well I have a question. What is meant by "weak" for a symbol map? And in which situation should we use a weak map?

This is a linker thing. That means the symbols can be overriden by one from another library basicaly. There is no simple way to know wich symbol is weak, you need to look at the original libs symbol for that.

@ptitSeb ptitSeb merged commit 22ee468 into ptitSeb:master Apr 15, 2024
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2 participants