Merge pull request #6090 from Gungy2/5830

Add `log` function to `Dec`
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Brendan Hansknecht 2023-12-01 22:02:35 -08:00 committed by GitHub
commit e65f14fa49
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3 changed files with 14 additions and 0 deletions

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@ -463,6 +463,10 @@ pub const RocDec = extern struct {
return RocDec{ .num = out };
}
pub fn log(self: RocDec) RocDec {
return fromF64(@log(self.toF64())).?;
}
// I belive the output of the trig functions is always in range of Dec.
// If not, we probably should just make it saturate the Dec.
// I don't think this should crash or return errors.
@ -1190,6 +1194,10 @@ test "div: 500 / 1000" {
try expectEqual(RocDec.fromStr(roc_str), number1.div(number2));
}
test "log: 1" {
try expectEqual(RocDec.fromU64(0), RocDec.log(RocDec.fromU64(1)));
}
// exports
pub fn fromStr(arg: RocStr) callconv(.C) num_.NumParseResult(i128) {
@ -1282,6 +1290,10 @@ pub fn divC(arg1: RocDec, arg2: RocDec) callconv(.C) i128 {
return @call(.always_inline, RocDec.div, .{ arg1, arg2 }).num;
}
pub fn logC(arg: RocDec) callconv(.C) i128 {
return @call(.always_inline, RocDec.log, .{arg}).num;
}
pub fn sinC(arg: RocDec) callconv(.C) i128 {
return @call(.always_inline, RocDec.sin, .{arg}).num;
}

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@ -32,6 +32,7 @@ comptime {
exportDecFn(dec.fromF64C, "from_float.f64");
exportDecFn(dec.fromStr, "from_str");
exportDecFn(dec.fromU64C, "from_u64");
exportDecFn(dec.logC, "log");
exportDecFn(dec.mulC, "mul_with_overflow");
exportDecFn(dec.mulOrPanicC, "mul_or_panic");
exportDecFn(dec.mulSaturatedC, "mul_saturated");

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@ -408,6 +408,7 @@ pub const DEC_FROM_FLOAT: IntrinsicName = float_intrinsic!("roc_builtins.dec.fro
pub const DEC_FROM_INT: IntrinsicName = int_intrinsic!("roc_builtins.dec.from_int");
pub const DEC_FROM_STR: &str = "roc_builtins.dec.from_str";
pub const DEC_FROM_U64: &str = "roc_builtins.dec.from_u64";
pub const DEC_LOG: &str = "roc_builtins.dec.log";
pub const DEC_MUL_OR_PANIC: &str = "roc_builtins.dec.mul_or_panic";
pub const DEC_MUL_SATURATED: &str = "roc_builtins.dec.mul_saturated";
pub const DEC_MUL_WITH_OVERFLOW: &str = "roc_builtins.dec.mul_with_overflow";