Create & Init Project...

app/admin/main/up/util/mathutil/BUILD

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+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["base_utils.go"],
+    importpath = "go-common/app/admin/main/up/util/mathutil",
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

app/admin/main/up/util/mathutil/base_utils.go

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+package mathutil
+
+//EPSILON very small number
+var EPSILON float32 = 0.00000001
+
+//FloatEquals float equals
+func FloatEquals(a, b float32) bool {
+	if (a-b) < EPSILON && (b-a) < EPSILON {
+		return true
+	}
+	return false
+}
+
+//EPSILON64 very small number
+var EPSILON64 = 0.00000001
+
+//Float64Equals float equal
+func Float64Equals(a, b float64) bool {
+	if (a-b) < EPSILON64 && (b-a) < EPSILON64 {
+		return true
+	}
+	return false
+}
+
+//Min min
+func Min(a, b int) int {
+	if a < b {
+		return a
+	}
+	if b < a {
+		return b
+	}
+	return a
+}
+
+//Max max
+func Max(a, b int) int {
+	if a > b {
+		return a
+	}
+	if b > a {
+		return b
+	}
+	return a
+}
+
+// IntersectInt64 intersect map
+func IntersectInt64(as, bs []int64) []int64 {
+	i := make([]int64, 0, Max(len(as), len(bs)))
+	for _, a := range as {
+		for _, b := range bs {
+			if a == b {
+				i = append(i, a)
+			}
+		}
+	}
+	return i
+}