--- /dev/null
+/*
+ * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ *
+ * This product is part of the Amsterdam Compiler Kit.
+ *
+ * Permission to use, sell, duplicate or disclose this software must be
+ * obtained in writing. Requests for such permissions may be sent to
+ *
+ * Dr. Andrew S. Tanenbaum
+ * Wiskundig Seminarium
+ * Vrije Universiteit
+ * Postbox 7161
+ * 1007 MC Amsterdam
+ * The Netherlands
+ *
+ */
+
+/* Author: E.G. Keizer */
+
+/* test for structure parameters, assignment and return */
+# define ASIZE 26
+
+struct w1 { int w1_i ; } ;
+struct w2 { int w2_i ; double w2_d ; } ;
+struct w3 { char w3_a[ASIZE] ; double w3_x ; } ;
+
+struct w1 es1 ;
+struct w1 es2[3] ;
+
+main() {
+ asst() ;
+ part() ;
+ callt() ;
+ return 0 ;
+
+}
+
+asst() {
+ /* test structure assignment */
+ struct w1 st1, st2, *st3 ;
+ struct w2 s2t1, s2t2, *s2t3 ;
+ struct w3 s3t1, s3t2, *s3t3 ;
+
+
+ register int i ;
+
+ printf("w1\n") ;
+ st1.w1_i = 506 ;
+ st2 = st1 ;
+ printf("\tst2.w1_i %d\n",st2.w1_i) ;
+ st3 = &st1 ;
+ printf("\t(*st3).w1_i %d\n",(*st3).w1_i) ;
+ es1.w1_i = 711 ;
+ st1 = st2 = es1 ;
+ printf("\tst1.w1_i %d\n",st1.w1_i) ;
+ printf("\tst2.w1_i %d\n",st2.w1_i) ;
+ es2[2] = st1 ;
+ printf("\tes2[2].w1_i %d\n",es2[2].w1_i) ;
+
+ st1.w1_i = -577 ;
+ es1.w1_i = 577 ;
+ for ( i=0 ; i<2 ; i++ ) {
+ st2 = ( i ? st1 : es1 ) ;
+ printf("\tst2.w1_i %d\n",st2.w1_i) ;
+ }
+
+ st1 = ( i , es1 ) ;
+ printf("\tst1.w1_i %d\n",st1.w1_i) ;
+
+ printf("w2\n") ;
+ s2t1.w2_i = 18000 ;
+ s2t1.w2_d = 3.1415 ;
+ s2t2 = s2t1 ;
+ printf("\ts2t2: .w2_i %d .w2_d %f\n",s2t2.w2_i,s2t2.w2_d) ;
+ s2t3 = &s2t2 ;
+ printf("\ts2t3->w2_d %f\n",s2t3->w2_d) ;
+
+ printf("w3\n") ;
+ for ( i = 0 ; i<ASIZE ; i++ ) {
+ s3t1.w3_a[i]= 'a'+i ;
+ }
+ s3t1.w3_x = 1.0 ;
+ s3t2 = s3t1 ;
+ s3t3 = &s3t1 ;
+ for ( i = 0 ; i<ASIZE ; i++ ) {
+ printf("s3t2.w3_a[%2d] %c\n",i,s3t2.w3_a[i]) ;
+ }
+ printf("s3t2.w3_x %f\n",s3t2.w3_x) ;
+ s3t2.w3_x = 1/3.1415 ;
+ for ( i = 0 ; i<ASIZE ; i++ ) {
+ s3t2.w3_a[i]= 'A'+i ;
+ }
+ *s3t3 = s3t2 ;
+ for ( i = 0 ; i<ASIZE ; i++ ) {
+ printf("s3t1.w3_a[%2d] %c\n",i,s3t1.w3_a[i]) ;
+ }
+ printf("s3t1.w3_x %f",s3t1.w3_x) ;
+}
+
+struct w3 epars ;
+
+part() {
+ /* test structure parameters */
+
+ struct w3 pars ;
+
+ register i ;
+
+ for ( i=0 ; i<ASIZE ; i++ ) {
+ pars.w3_a[i]=i+1 ;
+ }
+ pars.w3_x = 2.81 ;
+ printf("\nstructure parameters\n") ;
+ psc(-1,pars,1000) ;
+}
+
+psc(before,str,after) int before, after ; struct w3 str ; {
+ register int i ;
+
+ printf("before %d\n",before) ;
+ for ( i=0 ; i<ASIZE ; i++ ) {
+ printf("str.w3_a[%2d]\t%d\n",i,str.w3_a[i]) ;
+ }
+ printf("str.w3_x %f\n",str.w3_x) ;
+ printf("after %d\n",after) ;
+}
+
+callt() {
+ /* test structure valued functions */
+ extern struct w3 setp1(), setp2() ;
+ struct w3 myp ;
+ register int i ;
+
+ printf("\nStucture valued functions\n") ;
+ myp = setp1(ASIZE) ;
+ printf("myp.w3_a:\n") ;
+ for ( i=0 ; i<ASIZE ; i++ ) {
+ printf("\t%2d\t%d\n",i,myp.w3_a[i]) ;
+ }
+
+
+ myp = setp2() ;
+ for ( i=0 ; i<ASIZE ; i++ ) {
+ printf("\t%2d\t%d\n",i,myp.w3_a[i]) ;
+ }
+}
+
+struct w3 setp1(count) {
+ struct w3 myp ;
+
+ if ( count<0 ) {
+ return(myp) ;
+ }
+ myp = setp1(count-1) ;
+ myp.w3_a[count] = 99-count ;
+ return(myp) ;
+}
+
+static struct w3 myp2 ;
+
+struct w3 setp2() {
+ struct w3 *w3p ;
+ register i ;
+
+ for ( i=0 ; i<ASIZE ; i++ ) {
+ myp2.w3_a[i]= 99+i ;
+ }
+ w3p = &myp2 ;
+ return(*w3p) ;
+}