fix(stdlib)!: return CHAR from CHR

BREAKING CHANGE: CHR now returns CHAR instead of STRING, so user overloads and templates select or deduce CHAR for CHR(...).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/pseudocode-lib/string.cc b/pseudocode-lib/string.cc
index c47899c..4395304 100644
--- a/pseudocode-lib/string.cc
+++ b/pseudocode-lib/string.cc
@@ -163,11 +163,7 @@ long long _string_impl_asc(void *Handle) {
 long long _string_impl_asc_char(char Ch) {
     return checked([&]() -> long long { return static_cast<unsigned char>(Ch); });
 }
-void _string_impl_chr(void *Target, long long Code) {
-    checked([&] {
-        text(Target).assign(1, static_cast<char>(static_cast<unsigned char>(Code)));
-    });
-}
+char _string_impl_chr_char(long long Code) { return static_cast<char>(static_cast<unsigned char>(Code)); }
 int _string_impl_is_num(void *Handle) {
     return checked([&]() -> int {
         double Number = 0;