ext: integer limit values

For portably using C integers without cgo.

Signed-off-by: Ophestra <cat@gensokyo.uk>

ext/ext.go

@@ -4,6 +4,7 @@ package ext
 import (
 	"encoding/json"
 	"iter"
+	"math"
 	"strconv"
 )
 
@@ -15,6 +16,12 @@ type (
 	Int = int32
 )
 
+// Integer limit values.
+const (
+	MaxUint = math.MaxUint32
+	MaxInt  = math.MaxInt32
+)
+
 // SyscallNum represents an architecture-specific, Linux syscall number.
 type SyscallNum Int