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LibM: Add INFINITY macro

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Linus Groh 2020-06-04 13:05:27 +01:00 • committed by Andreas Kling
parent 8a94813007
commit ead76377b0
Notes: sideshowbarker 2024-07-19 05:50:35 +09:00
3 changed files with 7 additions and 6 deletions
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8
Libraries/LibJS/Runtime/Value.h
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@ -76,8 +76,8 @@ public:
bool is_infinity() const { return is_number() && __builtin_isinf(as_double()); }
bool is_positive_infinity() const { return is_number() && __builtin_isinf_sign(as_double()) > 0; }
bool is_negative_infinity() const { return is_number() && __builtin_isinf_sign(as_double()) < 0; }
bool is_positive_zero() const { return is_number() && 1.0 / as_double() == __builtin_huge_val(); }
bool is_negative_zero() const { return is_number() && 1.0 / as_double() == -__builtin_huge_val(); }
bool is_positive_zero() const { return is_number() && 1.0 / as_double() == INFINITY; }
bool is_negative_zero() const { return is_number() && 1.0 / as_double() == -INFINITY; }
bool is_integer() const { return is_finite_number() && (i32)as_double() == as_double(); }
bool is_finite_number() const
{
@ -257,12 +257,12 @@ inline Value js_nan()
inline Value js_infinity()
{
return Value(__builtin_huge_val());
return Value(INFINITY);
}
inline Value js_negative_infinity()
{
return Value(-__builtin_huge_val());
return Value(-INFINITY);
}
Value greater_than(Interpreter&, Value lhs, Value rhs);

4
Libraries/LibM/math.cpp
View file

@ -213,7 +213,7 @@ double log(double x)
if (x < 0)
return NAN;
if (x == 0)
return -__builtin_huge_val();
return -INFINITY;
double y = 1 + 2 * (x - 1) / (x + 1);
double exponentiated = exp(y);
y = y + 2 * (x - exponentiated) / (x + exponentiated);
@ -257,7 +257,7 @@ double exp(double exponent)
if (integer_part & 32)
result *= e_to_power<32>();
if (integer_part >= 64)
return __builtin_huge_val();
return INFINITY;
}
exponent -= integer_part;
} else if (exponent < 0)

1
Libraries/LibM/math.h
View file

@ -31,6 +31,7 @@
__BEGIN_DECLS
#define HUGE_VAL 1e10000
#define INFINITY __builtin_huge_val()
#define NAN __builtin_nan("")
#define M_E 2.718281828459045
#define M_PI 3.141592653589793