Init

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>

.gitignore

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+go-overflow-sample

README.md

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+```
+$ go build
+
+$ ./go-overflow-sample 999999999999999999
+1492596583345867513
+
+$ ./go-overflow-sample 9999999999999999999
+Could not convert argument to int64
+panic: crypto/rand: argument to Int is <= 0
+
+goroutine 1 [running]:
+crypto/rand.Int({0x4d0b88?, 0xc000014060?}, 0x0?)
+        /usr/lib64/go/1.22/src/crypto/rand/util.go:64 +0x2ca
+main.RandInt(0x4d0b08?)
+        /home/georg/Work/git/go-overflow-sample/main.go:23 +0x86
+main.main()
+        /home/georg/Work/git/go-overflow-sample/main.go:18 +0xdc
+```

go.mod

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+module go-overflow-sample
+
+go 1.22.6

main.go

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+package main
+
+import "crypto/rand"
+import "math/big"
+import "fmt"
+import "os"
+import "strconv"
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Pass a number")
+		os.Exit(1)
+	}
+	number, err := strconv.Atoi(os.Args[1])
+	if err != nil {
+		fmt.Println("Could not convert argument to int64")
+	}
+	RandInt(int64(number * 100))
+
+}
+
+func RandInt(max int64) {
+	i, err := rand.Int(rand.Reader, big.NewInt(int64(max)))
+	if err != nil {
+		fmt.Println("Could not randomize")
+	}
+	fmt.Println(i.Uint64())
+}