minor fixes and fmt

.github/workflows/build.yml

@@ -42,4 +42,4 @@ jobs:
       - name: (Zig) Build Native
         run: zig build -DzigCC --summary all
       - name: (Zig + emsdk) Build Wasm
-        run: zig build -DzigCC --summary all -Dtarget=wasm32-emscripten
+        run: zig build -DzigCC --summary all -Dtarget=wasm32-emscripten -Doptimize=ReleaseSmall

build.zig

@@ -243,7 +243,8 @@ pub fn build(b: *Build) !void {
             // fixme: https://github.com/kassane/sokol-d/issues/1 - betterC works on darwin
             .zig_cc = if (target.result.isDarwin() and !enable_betterC) false else enable_zigcc,
             .target = target,
-            .optimize = if (target.result.isWasm()) .ReleaseSmall else optimize,
+            .optimize = optimize,
+            // send ldc2-obj (wasm artifact) to emcc
             .kind = if (target.result.isWasm()) .obj else .exe,
             .emsdk = emsdk,
         });

src/handmade/math.d

@@ -6,13 +6,17 @@
 //
 //  Ported from HandmadeMath.h
 //------------------------------------------------------------------------------
+
 module handmade.math;
 
-extern(C):
+extern (C):
+@safe:
 
-version(WebAssembly){
+version (WebAssembly)
+{
+    // zig stdlib no-libc math functions
     enum PI = 3.14159265358979323846264338327950288419716939937510;
-    double zig_sqrt(ulong value) @nogc nothrow @trusted;
+    double zig_sqrt(size_t value) @nogc nothrow @trusted;
     double zig_sqrtf(double value) @nogc nothrow @trusted;
     double zig_cos(double value) @nogc nothrow @trusted;
     double zig_sin(double value) @nogc nothrow @trusted;
@@ -21,23 +25,27 @@ version(WebAssembly){
     alias sin = zig_sin;
     alias tan = zig_tan;
 
-    auto sqrt(T)(T value){
-        static if(is(T == double) || is(T == float)){
+    auto sqrt(T)(T value)
+    {
+        static if (is(T == double) || is(T == float))
+        {
             return zig_sqrtf(value);
-        } else {
+        }
+        else
+        {
             return zig_sqrt(value);
         }
     }
-} else {
-    public import core.stdc.math: sqrt, cos, sin, tan;
-    public import std.math: PI;
 }
-
-@safe:
+else
+{
+    public import core.stdc.math : sqrt, cos, sin, tan;
+    public import std.math : PI;
+}
 
 struct Vec2
 {
-    float x, y;
+    float x = 0.0, y = 0.0;
 
     static Vec2 zero()
     {
@@ -53,7 +61,7 @@ struct Vec2
 
 struct Vec3
 {
-    float x, y, z;
+    float x = 0.0, y = 0.0, z = 0.0;
 
     static Vec3 zero()
     {
@@ -108,7 +116,7 @@ struct Vec3
     static Vec3 cross(Vec3 v0, Vec3 v1)
     {
         return Vec3((v0.y * v1.z) - (v0.z * v1.y), (v0.z * v1.x) - (v0.x * v1.z),
-                (v0.x * v1.y) - (v0.y * v1.x));
+            (v0.x * v1.y) - (v0.y * v1.x));
     }
 
     static float dot(Vec3 v0, Vec3 v1)
@@ -232,9 +240,10 @@ float radians(float deg)
     return deg * (PI / 180.0);
 }
 
-@safe unittest
+unittest
 {
     import std.math : isClose;
+
     // Vec3.zero test
     {
         auto v = Vec3.zero();
@@ -245,9 +254,10 @@ float radians(float deg)
 
 }
 
-@safe unittest
+unittest
 {
     import std.math : isClose;
+
     // Vec3.new test
     {
         auto v = Vec3(1.0, 2.0, 3.0);
@@ -258,9 +268,10 @@ float radians(float deg)
 
 }
 
-@safe unittest
+unittest
 {
     import std.math : isClose;
+
     // Mat4.identity test
     {
         auto m = Mat4.identity();

src/handmade/math.zig

@@ -1,7 +1,8 @@
-//! replace "core.stdc.math" to "zig.std.math"
+//! replace "core.stdc.math" to "zig.std.math" (no-libc)
+
 const std = @import("std");
 
-export fn zig_sqrt(x: u64) callconv(.C) u64 {
+export fn zig_sqrt(x: usize) callconv(.C) usize {
     return std.math.sqrt(x);
 }
 export fn zig_sqrtf(x: f64) callconv(.C) f64 {