feat: initial release

Assisted-by: GLM 5.3 Flash

internal/core/data_test.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: MIT
+
+package core
+
+import (
+	"testing"
+)
+
+func TestAllAnyCountNonzero(t *testing.T) {
+	z, _ := FromInts([]int64{0, 0, 0}, 3)
+	a, err := All(z)
+	if err != nil || a {
+		t.Errorf("All zeros: %v %v", a, err)
+	}
+	any, err := Any(z)
+	if err != nil || any {
+		t.Errorf("Any zeros: %v %v", any, err)
+	}
+	m, _ := FromInts([]int64{0, 5, 0, 7}, 2, 2)
+	all, err := All(m)
+	if err != nil || all {
+		t.Errorf("All mixed: %v %v", all, err)
+	}
+	anyM, err := Any(m)
+	if err != nil || !anyM {
+		t.Errorf("Any mixed: %v %v", anyM, err)
+	}
+	cnt, err := CountNonzero(m)
+	if err != nil || cnt != 2 {
+		t.Errorf("CountNonzero: %d %v, want 2", cnt, err)
+	}
+	allOnes, _ := FromInts([]int64{1, 2, 3}, 3)
+	allT, err := All(allOnes)
+	if err != nil || !allT {
+		t.Errorf("All non-zero: %v %v", allT, err)
+	}
+	c, _ := FromComplexes([]complex128{1 + 2i}, 1)
+	if _, err := All(c); err == nil {
+		t.Error("All complex: expected error")
+	}
+}