commit 0acfb962eb575ae5ecd24e8e88865510b18e5b34
parent 5447266dfb6bc5ad7dcc8a668f4eb78b211eeee5
Author: Jake Koroman <jake@jakekoroman.com>
Date: Tue, 22 Jul 2025 12:41:03 -0400
add jrk_rand_num and jrk_rand_num_range.
Diffstat:
| M | jrk.h | | | 16 | +++++++++++++++- |
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/jrk.h b/jrk.h
@@ -84,12 +84,14 @@ void jrk_arena_expand(jrk_arena*, u64);
#define strputn jrk_strputn
#define string_from_parts jrk_string_from_parts
+#define rand_num jrk_rand_num
+#define rand_num_range jrk_rand_num_range
#endif // JRK_SHORTNAMES
#ifdef JRK_IMPLEMENTATION
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
-#include <errno.h>
#define jrk_die(x) do { fprintf(stderr, "%s:%d: error: "x"\n", __FILE__, __LINE__); exit(69); } while(0)
#define jrk_edie(x) do { fprintf(stderr, "%s:%d: error: "x": %s\n", __FILE__, __LINE__, strerror(errno)); exit(69); } while(0)
@@ -193,4 +195,16 @@ jrk_strputn(jrk_string string, u64 n)
printf("%*.*s\n", (int) n, (int) n, string.data);
}
+static inline i32
+jrk_rand_num(i32 upbound)
+{
+ return rand() % upbound + 1;
+}
+
+static inline i32
+jrk_rand_num_range(i32 min, i32 max)
+{
+ return rand() % (max - min + 1) + min;
+}
+
#endif // JRK_IMPLEMENTATION
