1 files changed, 7 insertions, 0 deletions
diff --git a/05/musl-0.6.0/src/ctype/isalpha.c b/05/musl-0.6.0/src/ctype/isalpha.c
new file mode 100644
index 0000000..53e115c
--- /dev/null
+++ b/05/musl-0.6.0/src/ctype/isalpha.c
@@ -0,0 +1,7 @@
+#include <ctype.h>
+#undef isalpha
+
+int isalpha(int c)
+{
+	return ((unsigned)c|32)-'a' < 26;
+}