From 661cd545262e735cdfaf7cd736a7fc2cde8613f1 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Mon, 29 Mar 2021 23:42:22 +0100
Subject: [PATCH] Fix -Wchar-subscripts warning
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warning: array subscript has type ‘char’ [-Wchar-subscripts]
---
 Source/CParse/cscanner.c  | 2 +-
 Source/Preprocessor/cpp.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/CParse/cscanner.c b/Source/CParse/cscanner.c
index a3702704e..2113b9cc6 100644
--- a/Source/CParse/cscanner.c
+++ b/Source/CParse/cscanner.c
@@ -93,7 +93,7 @@ int isStructuralDoxygen(String *s) {
     const size_t len = strlen(structuralTags[n]);
     if (strncmp(slashPointer, structuralTags[n], len) == 0) {
       /* Take care to avoid false positives with prefixes of other tags. */
-      if (slashPointer[len] == '\0' || isspace(slashPointer[len]))
+      if (slashPointer[len] == '\0' || isspace((int)slashPointer[len]))
 	return 1;
     }
   }
diff --git a/Source/Preprocessor/cpp.c b/Source/Preprocessor/cpp.c
index 557b5482b..75bec61fd 100644
--- a/Source/Preprocessor/cpp.c
+++ b/Source/Preprocessor/cpp.c
@@ -113,7 +113,7 @@ static int is_digits(const String *str) {
   const char *s = Char(str);
   int isdigits = (*s != 0);
   while (*s) {
-    if (!isdigit(*s)) {
+    if (!isdigit((int)*s)) {
       isdigits = 0;
       break;
     }