fixed compiler warnings on windows

1 files changed, 1 insertions, 1 deletions

diff --git a/src/precedent.c b/src/precedent.c
index a2791ac..11d662b 100644
--- a/src/precedent.c
+++ b/src/precedent.c
@@ -95,7 +95,7 @@ char* preprocess(char* str, char* baseDir) {
 		i++;
 		char* includeName = malloc(20 * sizeof(char));
 		int f = 0;
-		while (isalnum(str[i]) || str[i] == '/' || str[i] == '.' || str[i] == '_') {
+		while (isalnum((unsigned char)str[i]) || str[i] == '/' || str[i] == '.' || str[i] == '_') {
 			includeName[f] = str[i];
 			str[i] = ' ';
 			i++;