172 #define HASH_REPLACE(hh,head,fieldname,keylen_in,add,replaced)                   \  argument
174   replaced=NULL;                                                                 \
175   HASH_FIND(hh,head,&((add)->fieldname),keylen_in,replaced);                     \
176   if (replaced!=NULL) {                                                          \
177      HASH_DELETE(hh,head,replaced);                                              \
265 #define HASH_REPLACE_STR(head,strfield,add,replaced)                             \  argument
266     HASH_REPLACE(hh,head,strfield[0],(unsigned)strlen(add->strfield),add,replaced)
271 #define HASH_REPLACE_INT(head,intfield,add,replaced)                             \  argument
272     HASH_REPLACE(hh,head,intfield,sizeof(int),add,replaced)
277 #define HASH_REPLACE_PTR(head,ptrfield,add,replaced)                             \  argument
278     HASH_REPLACE(hh,head,ptrfield,sizeof(void *),add,replaced)