add JRK_ARRSIZE.

1 files changed, 2 insertions, 0 deletions

diff --git a/jrk.h b/jrk.h
index 58dee0c..5f9913d 100644
--- a/jrk.h
+++ b/jrk.h
@@ -27,6 +27,7 @@ typedef float f32;
 typedef double f64;
 
 #define JRK_UNUSED(x) (void)x
+#define JRK_ARRSIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 
 typedef struct {
     u8 *data;
@@ -148,6 +149,7 @@ jrk_StringView jrk_sv_chop_delim(jrk_StringView*, char delim);
 
 #ifdef JRK_SHORTNAMES
   #define UNUSED               JRK_UNUSED
+  #define ARRSIZE              JRK_ARRSIZE
 
   #define Arena                jrk_Arena
   #define StringBuilder        jrk_StringBuilder