From 2daad6ede8edcccfb6876dc100b4d736e191002d Mon Sep 17 00:00:00 2001
From: Matheus Afonso Martins Moreira <matheus.a.m.moreira@gmail.com>
Date: Thu, 2 Nov 2023 20:36:58 -0300
Subject: [PATCH] vcscanf: buffer the ')' of "nan(whatever)"

For some reason I thought the do while (c = BUFFER ...) loop
already did it for me. Apparently not!
---
 libc/stdio/vcscanf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libc/stdio/vcscanf.c b/libc/stdio/vcscanf.c
index b2bcc1b9c..ec88a0e0b 100644
--- a/libc/stdio/vcscanf.c
+++ b/libc/stdio/vcscanf.c
@@ -364,6 +364,9 @@ int __vcscanf(int callback(void *),    //
                     goto Done;
                   }
                 } while ((c = BUFFER) != -1 && c != ')');
+                if (c == ')') {
+                  c = BUFFER;
+                }
                 fp = strtod((char *) buf, NULL);
                 goto GotFloatingPointNumber;
               } else {