Introduce sc_arg_max() helper

Just a cast and an assert.
2019-05-21 10:57:23 +02:00
parent 77599f06e1
commit 21c491e106
4 changed files with 15 additions and 13 deletions
@@ -4,10 +4,17 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>
+#include <unistd.h>

 #include "macro.h"
 #include "string.h"

+static inline size_t sc_arg_max(void) {
+        long l = sysconf(_SC_ARG_MAX);
+        assert(l > 0);
+        return (size_t) l;
+}
+
 bool env_name_is_valid(const char *e);
 bool env_value_is_valid(const char *e);
 bool env_assignment_is_valid(const char *e);