o Implement imaxabs(), imaxdiv(), llabs(), lldiv().

o Update abs(3), div(3), labs(3), ldiv(3) to reflect standards
  conformance and add additional references.

Reviewed by:	bde, wollman

2 files changed, 15 insertions, 2 deletions

diff --git a/include/inttypes.h b/include/inttypes.h
index f6b19229b0a5..63871914aa9e 100644
--- a/include/inttypes.h
+++ b/include/inttypes.h
@@ -42,8 +42,8 @@ typedef struct {
 	intmax_t	rem;		/* Remainder. */
 } imaxdiv_t;
 
-intmax_t	imaxabs(intmax_t);
-imaxdiv_t	imaxdiv(intmax_t, intmax_t);
+intmax_t	imaxabs(intmax_t) __pure2;
+imaxdiv_t	imaxdiv(intmax_t, intmax_t) __pure2;
 
 /* XXX: The following functions are missing the restrict type qualifier. */
 intmax_t	strtoimax(const char *, char **, int);
diff --git a/include/stdlib.h b/include/stdlib.h
index c0ec98709476..3e7ce25b0237 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -68,6 +68,13 @@ typedef struct {
 	long rem;		/* remainder */
 } ldiv_t;
 
+#ifdef __LONG_LONG_SUPPORTED
+typedef struct {
+	long long quot;
+	long long rem;
+} lldiv_t;
+#endif
+
 #ifndef NULL
 #define	NULL	0
 #endif
@@ -118,6 +125,12 @@ int	 wctomb __P((char *, wchar_t));
 int	 mbtowc __P((wchar_t *, const char *, size_t));
 size_t	 wcstombs __P((char *, const wchar_t *, size_t));
 
+#ifdef __LONG_LONG_SUPPORTED
+long long
+	 llabs __P((long long)) __pure2;
+lldiv_t	 lldiv __P((long long, long long)) __pure2;
+#endif
+
 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
 extern char *_malloc_options;
 extern void (*_malloc_message)__P((char *p1, char *p2, char *p3, char *p4));