v_isempty
int v_isempty(char *, size_t);
if (csp->cs_len == 0 || v_isempty(csp->cs_bp, csp->cs_len)) {
if (csp->cs_len == 0 || v_isempty(csp->cs_bp, csp->cs_len)) {
v_isempty(csp->cs_bp, csp->cs_len)) {
if (len == 0 || v_isempty(p, len))
if (len == 0 || v_isempty(p, len))
if (len == 0 || v_isempty(p, len))
if (len != 0 && !v_isempty(p, len)) {
if (len == 0 || v_isempty(p, len)) { \