From b38d742358b566f8281329a7d7d29520598f6f5f Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Thu, 3 Dec 2020 01:12:13 -0500
Subject: [PATCH] wcwidth PoC: only print (!) for errors

---
 src/poc/wcwidth.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/poc/wcwidth.c b/src/poc/wcwidth.c
index b2de96378..bd41f48f8 100644
--- a/src/poc/wcwidth.c
+++ b/src/poc/wcwidth.c
@@ -29,7 +29,8 @@ int main(int argc, char **argv){
   }
   for(int i = 0 ; i < 128 ; ++i){
     wchar_t w = i;
-    printf("w(0x%02x): %d%c\t", i, wcwidth(w), iscntrl(i) ? '!' : ' ');
+    int width = wcwidth(w);
+    printf("w(0x%02x): %d%c\t", i, width, width < 0 ? '!' : ' ');
     if(i % 4 == 3){
       printf("\n");
     }