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Merged
merged 3 commits into from
Jun 2, 2025
Merged

Zig 0.14.0 #5

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3b8b0a1
Update to Zig 0.14.0
TUSF Mar 19, 2025
b139d3b
Fixed name of a constant, fixes #4
TUSF Apr 5, 2025
9dff05a
Update reference in tests.
TUSF Apr 5, 2025
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6 changes: 3 additions & 3 deletions build.zig.zon
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
.{
.name = "zigfp",
.name = .zigfp,
.version = "0.0.1",

.minimum_zig_version = "0.13.0",
.fingerprint = 0x1d54d742143d3f65,
.minimum_zig_version = "0.14.0",

.paths = .{
"build.zig",
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14 changes: 7 additions & 7 deletions src/main.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ const std = @import("std");
pub const i32p10 = FixedPoint(32, 1024);

/// medium range, medium precision fixed point value between -32000 and +32000, with a precision of roughly 0.000015
pub const i32p64 = FixedPoint(32, 65536);
pub const i32p16 = FixedPoint(32, 65536);

/// high precision fixed point with i32 integer range and a precision of roughly 0.00000000025
pub const i64p32 = FixedPoint(64, 1 << 32);
Expand All @@ -16,10 +16,10 @@ pub fn FixedPoint(comptime bits: comptime_int, comptime scaling: comptime_int) t
if (scaling < 1)
@compileError("scaling must be a positive, non-zero integer!");
const BaseInt = @Type(.{
.Int = .{ .bits = bits, .signedness = .signed },
.int = .{ .bits = bits, .signedness = .signed },
});
const BaseIntUnsigned = @Type(.{
.Int = .{ .bits = bits - 1, .signedness = .unsigned },
.int = .{ .bits = bits - 1, .signedness = .unsigned },
});
if (scaling > std.math.maxInt(BaseInt))
@compileError(std.fmt.comptimePrint("scaling must be less than {}", .{std.math.maxInt(BaseInt)}));
Expand All @@ -32,11 +32,11 @@ pub fn FixedPoint(comptime bits: comptime_int, comptime scaling: comptime_int) t
pub const Int = BaseInt;

pub const Int2 = @Type(.{
.Int = .{ .bits = 2 * bits, .signedness = .signed },
.int = .{ .bits = 2 * bits, .signedness = .signed },
});

pub const IntPart = @Type(.{
.Int = .{ .bits = bits - scaling_bits_max, .signedness = .signed },
.int = .{ .bits = bits - scaling_bits_max, .signedness = .signed },
});

pub const precision = 2.0 / @as(comptime_float, scaling);
Expand All @@ -58,7 +58,7 @@ pub fn FixedPoint(comptime bits: comptime_int, comptime scaling: comptime_int) t

pub fn toFloat(v: F, comptime T: type) T {
// std.debug.print("toFloat({}, {})\n", .{ Int, v.raw });
_ = @typeInfo(T).Float;
_ = @typeInfo(T).float;
return @as(T, @floatFromInt(v.raw)) / scaling;
}

Expand Down Expand Up @@ -169,7 +169,7 @@ pub fn FixedPoint(comptime bits: comptime_int, comptime scaling: comptime_int) t

test {
_ = TestSuite(i32p10);
_ = TestSuite(i32p64);
_ = TestSuite(i32p16);
_ = TestSuite(i64p32);
_ = TestSuite(FixedPoint(32, 1000));
_ = TestSuite(FixedPoint(64, 1000));
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