Pointer arithmetic now also for Minus

string_index.nl now doesn't compile anymore because I need to implement casts
from i32 to u64

1 files changed, 5 insertions, 2 deletions

diff --git a/nl/string_index.nl b/nl/string_index.nl
index 27df14b..deb4188 100644
--- a/nl/string_index.nl
+++ b/nl/string_index.nl
@@ -1,10 +1,13 @@
 extern func void(i32) putchar;
+extern func u64(ptr(i8)) strlen;
 
 i32 main() {
 	ptr(i8) s = "kaas";
+	ptr(i8) orig = s;
+	s = s + strlen(s) - 1;
 	i32 i = 0;
-	while (*(s+i) != '\x00') {
-		putchar(*(s + i));
+	while (i < strlen(orig)) {
+		putchar(*(s - i));
 		i = i + 1;
 	}
 	putchar('\n');