Function cbm_sb_init

src/mcp/compact_out.c:11–16

enum { SB_INITIAL_CAP = 1024 };

void cbm_sb_init(cbm_sb_t *sb) {
    sb->buf = NULL;
    sb->len = 0;
    sb->cap = 0;
    sb->oom = false;
}

static bool sb_reserve(cbm_sb_t *sb, size_t extra) {
    if (sb->oom) {