library: math/rand

_demo/crand/rand.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/math/rand"
+	"github.com/goplus/llgo/c/time"
+)
+
+func fastrand64() uint64 {
+	v1 := uint64(rand.Random())
+	v2 := uint64(rand.Random())
+	return v1 ^ (v2 << 32)
+}
+
+func main() {
+	rand.Srand(c.Uint(time.Time(nil)))
+	fmt.Printf("%x\n", rand.Rand())
+	fmt.Printf("%x\n", rand.Rand())
+
+	rand.Srandom(c.Uint(time.Time(nil)))
+	fmt.Printf("%x\n", rand.Random())
+	fmt.Printf("%x\n", rand.Random())
+	fmt.Printf("%x\n", fastrand64())
+}

_demo/llama2-c/run.go

@@ -3,6 +3,7 @@ package main
 import (
 	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/c/llama2"
+	"github.com/goplus/llgo/c/time"
 )
 
 func main() {
@@ -11,7 +12,7 @@ func main() {
 	var tokenizerPath *c.Char = c.Str("tokenizer.bin")
 	var temperature, topp c.Float = 1.0, 0.9
 	var steps c.Int = 256
-	var rngSeed uint64 = uint64(c.Time(nil))
+	var rngSeed uint64 = uint64(time.Time(nil))
 
 loop: // parse command line arguments
 	for {

_demo/rand/rand.go

@@ -1,15 +0,0 @@
-package main
-
-import (
-	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/c/math/rand"
-)
-
-func main() {
-	var s c.Uint = 6
-	rand.Srand(s)
-	rr := rand.RandR(&s)
-	r := rand.Rand()
-	println("r:", r)
-	println("rr:", rr)
-}

_demo/randdemo/rand.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+)
+
+func main() {
+	fmt.Println(rand.Intn(100))
+	fmt.Println(rand.Intn(100))
+	fmt.Println(rand.Intn(100))
+}