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-rw-r--r--src/string_utils.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/string_utils.h b/src/string_utils.h
index 4bd36721..3f3d8c12 100644
--- a/src/string_utils.h
+++ b/src/string_utils.h
@@ -64,7 +64,7 @@ is_xdigit(const int c)
}
static inline bool
-is_space(const char c)
+is_space(const int c)
{
switch (c) {
case ' ': case '\f': case '\n': case '\r': case '\t': case '\v':