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Add log function to Dec

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George Ungureanu Vranceanu 2023-11-25 14:29:20 +00:00
parent 62964f68cf
commit 23b6b432c7
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3 changed files with 14 additions and 0 deletions
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12
crates/compiler/builtins/bitcode/src/dec.zig
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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;
}

1
crates/compiler/builtins/bitcode/src/main.zig
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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");