vpfopen
if ((yyin = vpfopen(srcfile, FREAD)) == NULL) {
if ((names = vpfopen(namefile, "r")) == NULL) {
if ((outfile = vpfopen(invname, FWRITEP)) == NULL) {
if ((fpost = vpfopen(invpost, FWRITE)) == NULL) {
if ((invcntl->invfile = vpfopen(invname,
if ((invcntl->postfile = vpfopen(invpost,
FILE *vpfopen(char *filename, char *type);
if ((oldrefs = vpfopen(reffile, "r")) == NULL) {
(names = vpfopen(namefile, "r")) != NULL ||
(names = vpfopen(NAMEFILE, "r")) != NULL) {
if ((oldrefs = vpfopen(reffile, "r")) != NULL && unconditional == NO &&