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LibM: Implement the frexp family

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Mițca Dumitru 2021-03-07 23:21:39 +02:00 • committed by Andreas Kling
parent b274120b3c
commit 88d342d007
1 changed files with 9 additions and 9 deletions
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18
Userland/Libraries/LibM/math.cpp
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@ -663,22 +663,22 @@ long double log2l(long double x) NOEXCEPT
return log2(x); return log2(x);
} }
double frexp(double, int*) NOEXCEPT double frexp(double x, int* exp) NOEXCEPT
{ {
VERIFY_NOT_REACHED(); *exp = (x == 0) ? 0 : (1 + ilogb(x));
return 0; return scalbn(x, -(*exp));
} }
float frexpf(float, int*) NOEXCEPT float frexpf(float x, int* exp) NOEXCEPT
{ {
VERIFY_NOT_REACHED(); *exp = (x == 0) ? 0 : (1 + ilogbf(x));
return 0; return scalbnf(x, -(*exp));
} }
long double frexpl(long double, int*) NOEXCEPT long double frexpl(long double x, int* exp) NOEXCEPT
{ {
VERIFY_NOT_REACHED(); *exp = (x == 0) ? 0 : (1 + ilogbl(x));
return 0; return scalbnl(x, -(*exp));
} }
double round(double value) NOEXCEPT double round(double value) NOEXCEPT