fix unprotected macro argument in sys/ttydefaults.h

a0217a2f · Rich Felker · ff5b8ad3 · a0217a2f
隐藏空白更改
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include/sys/ttydefaults.h include/sys/ttydefaults.h +1 -1

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--- a/include/sys/ttydefaults.h
+++ b/include/sys/ttydefaults.h
@@ -6,7 +6,7 @@
 #define TTYDEF_LFLAG (ECHO | ICANON | ISIG | IEXTEN | ECHOE|ECHOKE|ECHOCTL)
 #define TTYDEF_CFLAG (CREAD | CS7 | PARENB | HUPCL)
 #define TTYDEF_SPEED (B9600)
-#define CTRL(x) (x&037)
+#define CTRL(x) ((x)&037)
 #define CEOF CTRL('d')

 #ifdef _POSIX_VDISABLE