massive: move a lot of things

x-tba/slicing-allocs-gotcha/nums/main.go

@@ -0,0 +1,32 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+)
+
+func main() {
+	const path = "nums.txt"
+
+	_ = os.Remove(path)
+
+	f, _ := os.OpenFile(path,
+		os.O_CREATE|os.O_WRONLY,
+		0644)
+	defer f.Close()
+
+	const size = 1000000
+	w := bufio.NewWriterSize(f, 1<<16)
+	for i := 1; i <= size; i++ {
+		fmt.Fprintf(w, "num: %d\n", i)
+	}
+	w.Flush()
+}