From 0acfb962eb575ae5ecd24e8e88865510b18e5b34 Mon Sep 17 00:00:00 2001 From: Jake Koroman Date: Tue, 22 Jul 2025 12:41:03 -0400 Subject: add jrk_rand_num and jrk_rand_num_range. --- jrk.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/jrk.h b/jrk.h index 963c671..6606b7e 100644 --- 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 #include #include -#include #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 -- cgit v1.2.3