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Everywhere: Add -Wdouble-promotion warning

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This warning informs of float-to-double conversions. The best solution
seems to be to do math *either* in 32-bit *or* in 64-bit, and only to
cross over when absolutely necessary.
This commit is contained in:
Nicholas-Baron 2021-04-15 00:36:14 -07:00 • committed by Andreas Kling
parent 6606d70826
commit 73dd293ec4
26 changed files with 105 additions and 98 deletions
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16
Userland/Libraries/LibM/math.cpp
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@ -172,9 +172,9 @@ static FloatType internal_to_integer(FloatType x, RoundingMode rounding_mode)
// We could do this ourselves, but this saves us from manually
// handling overflow.
if (extractor.sign)
extractor.d -= 1.0;
extractor.d -= static_cast<FloatType>(1.0);
else
extractor.d += 1.0;
extractor.d += static_cast<FloatType>(1.0);
}
return extractor.d;
@ -339,7 +339,7 @@ static FloatT internal_gamma(FloatT x) NOEXCEPT
}
// Stirling approximation
return sqrtl(2.0 * M_PI / x) * powl(x / M_E, x);
return sqrtl(2.0 * M_PI / static_cast<long double>(x)) * powl(static_cast<long double>(x) / M_E, static_cast<long double>(x));
}
extern "C" {
@ -386,7 +386,7 @@ double cos(double angle) NOEXCEPT
float cosf(float angle) NOEXCEPT
{
return sinf(angle + M_PI_2);
return sinf(angle + static_cast<float>(M_PI_2));
}
long double sinl(long double angle) NOEXCEPT
@ -636,7 +636,7 @@ double fmod(double index, double period) NOEXCEPT
float fmodf(float index, float period) NOEXCEPT
{
return index - trunc(index / period) * period;
return index - truncf(index / period) * period;
}
// FIXME: These aren't exactly like fmod, but these definitions are probably good enough for now
@ -818,7 +818,7 @@ double acos(double x) NOEXCEPT
float acosf(float x) NOEXCEPT
{
return M_PI_2 - asinf(x);
return static_cast<float>(M_PI_2) - asinf(x);
}
long double fabsl(long double value) NOEXCEPT
@ -1104,9 +1104,9 @@ double lgamma_r(double value, int* sign) NOEXCEPT
float lgammaf_r(float value, int* sign) NOEXCEPT
{
if (value == 1.0 || value == 2.0)
if (value == 1.0f || value == 2.0f)
return 0.0;
if (isinf(value) || value == 0.0)
if (isinf(value) || value == 0.0f)
return INFINITY;
float result = logf(internal_gamma(value));
*sign = signbit(result) ? -1 : 1;