nil
uuid_t nil;
u = &nil;
uuid_create_nil(&nil, NULL);
for (ch_was_space = 1; *chptr != nil; chptr++) {
*chptr = nil; /* replace each space with nil */
const char nil = '\0';
for (chptr = &input_line[0]; *chptr != nil; chptr++) {
const char nil = '\0';
for (chptr = &input_line[0]; *chptr != nil; chptr++) {
for (ch_was_space = 1; *chptr != nil; chptr++) {
*chptr = nil; /* replace each space with nil */
const char nil = '\0';
for (chptr = &input_line[0]; *chptr != nil; chptr++) {
for (ch_was_space = 1; *chptr != nil; chptr++) {
*chptr = nil; /* replace each space with nil */
*pparam = nil(caddr_t);