add assertv. change jrk_Arena length to count.

1 files changed, 6 insertions, 5 deletions

diff --git a/jrk.h b/jrk.h
index 5f9913d..994dcff 100644
--- a/jrk.h
+++ b/jrk.h
@@ -31,7 +31,7 @@ typedef double f64;
 
 typedef struct {
     u8 *data;
-    u64 length;
+    u64 count;
     u64 capacity;
 } jrk_Arena;
 
@@ -81,6 +81,7 @@ jrk_StringView jrk_sv_chop_delim(jrk_StringView*, char delim);
 
 /* NOTE: no shortname as 'assert' is just too generic */
 #define jrk_assert(c, msg) do { if (!(c)) jrk_die("jrk_assert: "msg); } while(0)
+#define jrk_assertv(c, msg, ...) do { if (!(c)) jrk_diev("jrk_assert: "msg, __VA_ARGS__); } while(0)
 
 #define jrk_shift(x, n) ((n)--, *(x)++)
 #define jrk_shift_loop(x, n, it) for (char *it = jrk_shift(x, n); n >= 0; it = jrk_shift(x, n))
@@ -259,7 +260,7 @@ jrk_Arena
 jrk_arena_create(u64 n)
 {
     jrk_Arena result;
-    result.length = 0;
+    result.count = 0;
     result.capacity = n;
     result.data = jrk_ecalloc(result.capacity, 1);
     return result;
@@ -268,11 +269,11 @@ jrk_arena_create(u64 n)
 void *
 jrk__arena_push(jrk_Arena *arena, u64 n)
 {
-    while (arena->length + n >= arena->capacity)
+    while (arena->count + n >= arena->capacity)
         jrk_arena_expand(arena, arena->capacity * 2);
 
-    void *result = &arena->data[arena->length];
-    arena->length += n;
+    void *result = &arena->data[arena->count];
+    arena->count += n;
     return result;
 }