Add a Byte datatype

1 files changed, 38 insertions, 0 deletions

diff --git a/stdlib/bytes.c b/stdlib/bytes.c
new file mode 100644
index 00000000..5b471bfe
--- /dev/null
+++ b/stdlib/bytes.c
@@ -0,0 +1,38 @@
+// The logic for unsigned bytes
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "bytes.h"
+#include "stdlib.h"
+#include "text.h"
+#include "util.h"
+
+public const Byte_t Byte$min = 0;
+public const Byte_t Byte$max = UINT8_MAX;
+
+PUREFUNC public Text_t Byte$as_text(const Byte_t *b, bool colorize, const TypeInfo *type)
+{
+    (void)type;
+    if (!b) return Text("Byte");
+    return Text$format(colorize ? "\x1b[35m%u[B]\x1b[m" : "%u[B]", *b);
+}
+
+public Byte_t Byte$random(Byte_t min, Byte_t max)
+{
+    if (min > max)
+        fail("Random minimum value (%u) is larger than the maximum value (%u)", min, max);
+    if (min == max)
+        return min;
+
+    uint32_t r = arc4random_uniform((uint32_t)max - (uint32_t)min + 1u);
+    return (Byte_t)(min + r);
+}
+
+public const TypeInfo Byte$info = {
+    .size=sizeof(Byte_t),
+    .align=__alignof__(Byte_t),
+    .tag=CustomInfo,
+    .CustomInfo={.as_text=(void*)Byte$as_text},
+};
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0