tweaks: avoid a runtime error when compiled with -fsanitize=undefined

This fixes https://savannah.gnu.org/bugs/?48540.

tweaks: avoid a runtime error when compiled with -fsanitize=undefined
This fixes https://savannah.gnu.org/bugs/?48540.
04b9b9c7 · Benno Schulenberg · 41ad376b · 04b9b9c7
Commit 04b9b9c7 authored 8 years ago by Benno Schulenberg
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+1 -1
--- a/src/nano.h
+++ b/src/nano.h
@@ -58,7 +58,7 @@

 /* Macros for flags, indexing each bit in a small array. */
 #define FLAGS(flag) flags[((flag) / (sizeof(unsigned) * 8))]
-#define FLAGMASK(flag) (1 << ((flag) % (sizeof(unsigned) * 8)))
+#define FLAGMASK(flag) ((unsigned)1 << ((flag) % (sizeof(unsigned) * 8)))
 #define SET(flag) FLAGS(flag) |= FLAGMASK(flag)
 #define UNSET(flag) FLAGS(flag) &= ~FLAGMASK(flag)
 #define ISSET(flag) ((FLAGS(flag) & FLAGMASK(flag)) != 0)