From 973a4b765629a85d16f438f6832b1a2bb54af7e7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C5=99emysl=20Janouch?= Date: Mon, 23 Jan 2017 22:47:20 +0100 Subject: [PATCH] Add ARRAY convenience macros Because dynamically allocated arrays in C are a pain. --- liberty.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/liberty.c b/liberty.c index 0e19c31..c564bfd 100644 --- a/liberty.c +++ b/liberty.c @@ -301,6 +301,23 @@ xstrndup (const char *s, size_t n) return copy; } +// --- Simple array support ---------------------------------------------------- + +// The most basic helper macros to make working with arrays not suck + +#define ARRAY(type, name) type *name; size_t name ## _len, name ## _size; +#define ARRAY_INIT_SIZED(a, n) \ + BLOCK_START \ + (a) = xcalloc (sizeof *(a), (a ## _size) = (n)); \ + (a ## _len) = 0; \ + BLOCK_END +#define ARRAY_INIT(a) ARRAY_INIT_SIZED (a, 16) +#define ARRAY_RESERVE(a, n) \ + BLOCK_START \ + while ((a ## _size) - (a ## _len) < n) \ + (a) = xreallocarray ((a), sizeof *(a), (a ## _size) <<= 1); \ + BLOCK_END + // --- Double-linked list helpers ---------------------------------------------- #define LIST_HEADER(type) \