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| author | tgschultz <tgschultz@gmail.com> | 2018-06-27 11:30:15 -0500 |
|---|---|---|
| committer | Andrew Kelley <superjoe30@gmail.com> | 2018-06-27 12:30:15 -0400 |
| commit | 3e94347e6152dd9a88f4bceb46bbc245ed7cef98 (patch) | |
| tree | b58eddbcf200ac3ee8c5ebb2bf89d45aa0236061 /std/rand | |
| parent | 1b4bae6d69937043add14c0dac357c1a1b05f037 (diff) | |
| download | zig-3e94347e6152dd9a88f4bceb46bbc245ed7cef98.tar.gz zig-3e94347e6152dd9a88f4bceb46bbc245ed7cef98.zip | |
Fix up some std.rand syntax #1161 (#1162)
* Fix old syntax in rand
Ziggurat somehow did not get updated to latest syntax
* Fix broken float casts
f32 float casts somehow not updated to latest syntax
Diffstat (limited to 'std/rand')
| -rw-r--r-- | std/rand/index.zig | 4 | ||||
| -rw-r--r-- | std/rand/ziggurat.zig | 8 |
2 files changed, 8 insertions, 4 deletions
diff --git a/std/rand/index.zig b/std/rand/index.zig index 13694f4c09..7daa558f13 100644 --- a/std/rand/index.zig +++ b/std/rand/index.zig @@ -116,7 +116,7 @@ pub const Random = struct { pub fn floatNorm(r: *Random, comptime T: type) T { const value = ziggurat.next_f64(r, ziggurat.NormDist); switch (T) { - f32 => return f32(value), + f32 => return @floatCast(f32, value), f64 => return value, else => @compileError("unknown floating point type"), } @@ -128,7 +128,7 @@ pub const Random = struct { pub fn floatExp(r: *Random, comptime T: type) T { const value = ziggurat.next_f64(r, ziggurat.ExpDist); switch (T) { - f32 => return f32(value), + f32 => return @floatCast(f32, value), f64 => return value, else => @compileError("unknown floating point type"), } diff --git a/std/rand/ziggurat.zig b/std/rand/ziggurat.zig index 774d3bd52a..f7a1359f17 100644 --- a/std/rand/ziggurat.zig +++ b/std/rand/ziggurat.zig @@ -84,12 +84,12 @@ fn ZigTableGen( for (tables.x[2..256]) |*entry, i| { const last = tables.x[2 + i - 1]; - *entry = f_inv(v / last + f(last)); + entry.* = f_inv(v / last + f(last)); } tables.x[256] = 0; for (tables.f[0..]) |*entry, i| { - *entry = f(tables.x[i]); + entry.* = f(tables.x[i]); } return tables; @@ -160,3 +160,7 @@ test "ziggurant exp dist sanity" { _ = prng.random.floatExp(f64); } } + +test "ziggurat table gen" { + const table = NormDist; +} |