RAND_MAX (gotranspile#15)

Add RAND_MAX to sdlib. Solves gotranspile#14
TotallyGamerJet · Jul 15, 2021 · ac40214 · ac40214
1 parent b05e342
commit ac40214
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/libs/stdlib.go b/libs/stdlib.go
@@ -2,7 +2,8 @@ package libs
 
 import (
 	"os"
-
+	"fmt"
+
 	"github.com/gotranspile/cxgo/runtime/cmath"
 	"github.com/gotranspile/cxgo/runtime/libc"
 	"github.com/gotranspile/cxgo/types"
@@ -133,6 +134,7 @@ size_t        wcstombs(char *restrict, const wchar_t *restrict, size_t);
 int           wctomb(char *, wchar_t);
 `,
 		}
+		l.Header += fmt.Sprintf("#define RAND_MAX %d\n", libc.RandMax)
 		l.Declare(
 			c.NewIdent("getenv", "os.Getenv", os.Getenv, c.FuncTT(c.Go().String(), c.Go().String())),
 		)

diff --git a/runtime/libc/rand.go b/runtime/libc/rand.go
@@ -1,9 +1,14 @@
 package libc
 
-import "math/rand"
+import (
+	"math"
+	"math/rand"
+)
+
+const RandMax = math.MaxInt32
 
 func Rand() int32 {
-	return int32(rand.Int())
+	return int32(rand.Intn(RandMax))
 }
 
 func SeedRand(seed uint32) {