Make isa[ctype]() return bool.

Not that there's a big difference...

1 files changed, 5 insertions, 5 deletions

diff --git a/crawl-ref/source/libutil.h b/crawl-ref/source/libutil.h
index d07de516a1..6987eedf51 100644
--- a/crawl-ref/source/libutil.h
+++ b/crawl-ref/source/libutil.h
@@ -39,28 +39,28 @@ static inline int unscale_round_up(int number, int scale)
 }
 
 // Chinese rod numerals are _not_ digits for our purposes.
-static inline int isadigit(int c)
+static inline bool isadigit(int c)
 {
     return (c >= '0' && c <= '9');
 }
 
 // 'ä' is a letter, but not a valid inv slot/etc.
-static inline int isalower(int c)
+static inline bool isalower(int c)
 {
     return (c >= 'a' && c <= 'z');
 }
 
-static inline int isaupper(int c)
+static inline bool isaupper(int c)
 {
     return (c >= 'A' && c <= 'Z');
 }
 
-static inline int isaalpha(int c)
+static inline bool isaalpha(int c)
 {
     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
 }
 
-static inline int isaalnum(int c)
+static inline bool isaalnum(int c)
 {
     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9');
 }