+// cast1 is the "final" cast
+static const char *simplify_cast(const char *cast1, const char *cast2)
+{
+ static char buf[256];
+
+ if (cast1[0] == 0)
+ return cast2;
+ if (cast2[0] == 0)
+ return cast1;
+ if (IS(cast1, cast2))
+ return cast1;
+ if (IS(cast1, "(s8)") && IS(cast2, "(u8)"))
+ return cast1;
+ if (IS(cast1, "(s16)") && IS(cast2, "(u16)"))
+ return cast1;
+ if (IS(cast1, "(u8)") && IS_START(cast2, "*(u8 *)"))
+ return cast2;
+ if (IS(cast1, "(u16)") && IS_START(cast2, "*(u16 *)"))
+ return cast2;
+
+ snprintf(buf, sizeof(buf), "%s%s", cast1, cast2);
+ return buf;
+}
+
+static const char *simplify_cast_num(const char *cast, unsigned int val)
+{
+ if (IS(cast, "(u8)") && val < 0x100)
+ return "";
+ if (IS(cast, "(s8)") && val < 0x80)
+ return "";
+ if (IS(cast, "(u16)") && val < 0x10000)
+ return "";
+ if (IS(cast, "(s16)") && val < 0x8000)
+ return "";
+ if (IS(cast, "(s32)") && val < 0x80000000)
+ return "";
+
+ return cast;
+}
+