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271 lines
6.6 KiB
C
271 lines
6.6 KiB
C
/*
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!!DESCRIPTION!! C-Manual Chapter 8.4: meaning of declarators
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!!ORIGIN!! LCC 4.1 Testsuite
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!!LICENCE!! own, freely distributeable for non-profit. read CPYRIGHT.LCC
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*/
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#include "common.h"
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struct defs {
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int cbits; /* No. of bits per char */
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int ibits; /* int */
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int sbits; /* short */
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int lbits; /* long */
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int ubits; /* unsigned */
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int fbits; /* float */
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int dbits; /* double */
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#ifndef NO_FLOATS
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float fprec; /* Smallest number that can be */
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float dprec; /* significantly added to 1. */
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#endif
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int flgs; /* Print return codes, by section */
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int flgm; /* Announce machine dependencies */
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int flgd; /* give explicit diagnostics */
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int flgl; /* Report local return codes. */
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int rrc; /* recent return code */
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int crc; /* Cumulative return code */
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char rfs[8]; /* Return from section */
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};
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int lbits; /* long */
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int ubits; /* unsigned */
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int fbits; /* float */
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int dbits; /* double */
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#ifndef NO_FLOATS
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float fprec; /* Smallest number that can be */
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float dprec; /* significantly added to 1. */
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#endif
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int flgs; /* Print return codes, by section */
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int flgm; /* Announce machine dependencies */
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int flgd; /* give explicit diagnostics */
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int flgl; /* Report local return codes. */
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int rrc; /* recent return code */
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int crc; /* Cumulative return code */
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char rfs[8]; /* Return from section */
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#ifdef NO_SLOPPY_EXTERN
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int *fip(int x);
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int array(int a[],int size,int start);
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int glork(int x);
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#endif
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#ifndef NO_OLD_FUNC_DECL
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s84(pd0) /* 8.4 Meaning of declarators */
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struct defs *pd0;
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{
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#else
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int s84(struct defs *pd0){
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#endif
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#ifndef NO_SLOPPY_EXTERN
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int *ip, i, *fip(), (*pfi)(), j, k, array(), glork();
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#else
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int *ip, i, j, k,(*pfi)();
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/*
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extern int
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*fip(),
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array(),
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glork();
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int *fip(int x);
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int array(int a[],int size,int start);
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*/
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#endif
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static int x3d[3][5][7];
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#ifndef NO_FLOATS
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float fa[17], *afp[17], sum;
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#else
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signed fa[17], *afp[17], sum;
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#endif
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static char s84er[] = "s84,er%d\n";
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static char qs84[8] = "s84 ";
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int rc;
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char *ps, *pt;
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ps = qs84;
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pt = pd0->rfs;
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rc = 0;
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while (*pt++ = *ps++);
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/* The more common varieties of declarators have al-
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ready been touched upon, some more than others. It
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is useful to compare *fip() and (*pfi)().
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*/
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ip = fip(3);
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if(*ip != 3){
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if(pd0->flgd != 0) printf(s84er,1);
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rc = rc+1;
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}
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/* kludges */
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#if defined(FORCE_POINTERS) | defined(NO_OLD_FUNC_DECL)
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if(glork(4) != 4){
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if(pd0->flgd != 0) printf(s84er,2);
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rc = rc+2;
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}
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#else
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pfi = glork;
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if((*pfi)(4) != 4){
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if(pd0->flgd != 0) printf(s84er,2);
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rc = rc+2;
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}
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#endif
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/* Float fa[17] declares an array of floating point
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numbers, and *afp[17] declares an array of pointers
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to floats.
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*/
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for(j=0; j<17; j++){
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fa[j] = j;
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afp[j] = &fa[j];
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}
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#ifndef NO_FLOATS
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sum = 0.;
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#else
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sum = 0;
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#endif
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for(j=0; j<17; j++) sum += *afp[j];
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if(sum != 136){
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if(pd0->flgd != 0) printf(s84er,4);
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rc = rc+4;
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}
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/* static int x3d[3][5][7] declares a static three
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dimensional array of integers, with rank 3x5x7.
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In complete detail, x3d is an array of three items;
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each item is an array of five arrays, and each of
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the latter arrays is an array of seven integers.
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Any of the expressions x3d, x3d[i], x3d[i][j],
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and x3d[i][j][k] may reasonably appear in an express-
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ion. The first three have type "array"; the last has
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type int.
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*/
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for (i=0; i<3; i++)
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for (j=0; j<5; j++)
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for (k=0; k<7; k++)
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x3d[i][j][k] = i*35+j*7+k;
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i = 1; j = 2; k = 3;
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/* kludges */
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#if defined(FORCE_POINTERS) | defined(NO_OLD_FUNC_DECL)
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if( array((int*)x3d,105,0)
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+array((int*)x3d[i],35,35)
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#else
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if( array(x3d,105,0)
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+array(x3d[i],35,35)
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#endif
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+array(x3d[i][j],7,49)
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+ x3d[i][j][k]-52){
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if(pd0->flgd != 0) printf(s84er,8);
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rc = rc+8;
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}
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return rc;
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}
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#ifndef NO_OLD_FUNC_DECL
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array(a,size,start)
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int a[],size,start;
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#else
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int array(int a[],int size,int start)
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#endif
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{
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/*
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#ifndef NO_OLD_FUNC_DECL
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array(a,size,start)
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int a[],
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#else
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int array(int a[],
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#endif
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#ifdef NO_TYPELESS_INT
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int
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#endif
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#ifdef NO_TYPELESS_INT
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int
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#endif
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#ifndef NO_OLD_FUNC_DECL
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start; {
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#else
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start){
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#endif
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*/
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int i;
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for(i=0; i<size; i++)
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if(a[i] != i+start) return 1;
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return 0;
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}
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#ifndef NO_OLD_FUNC_DECL
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int *fip(x)
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int x;
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{
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#else
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int *fip(int x){
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#endif
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static int y;
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y = x;
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return &y;
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}
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#ifndef NO_OLD_FUNC_DECL
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glork(x)
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int x;
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{
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#else
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int glork(int x){
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#endif
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return x;}
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/*********************************************************************************************
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the main loop that launches the sections
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*********************************************************************************************/
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#ifndef NO_TYPELESS_STRUCT_PTR
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int section(int j,struct* pd0){
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#else
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int section(int j,void* pd0){
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#endif
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switch(j){
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case 0: return s84(pd0);
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}
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}
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#define cq_sections 1
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/*
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C REFERENCE MANUAL (main)
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*/
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#ifndef NO_OLD_FUNC_DECL
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main(n,args)
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int n;
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char **args;
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{
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#else
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int main(int n,char **args) {
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#endif
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int j;
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static struct defs d0, *pd0;
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d0.flgs = 1; /* These flags dictate */
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d0.flgm = 1; /* the verbosity of */
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d0.flgd = 1; /* the program. */
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d0.flgl = 1;
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pd0 = &d0;
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for (j=0; j<cq_sections; j++) {
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d0.rrc=section(j,pd0);
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d0.crc=d0.crc+d0.rrc;
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if(d0.flgs != 0) printf("Section %s returned %d.\n",d0.rfs,d0.rrc);
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}
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if(d0.crc == 0) printf("\nNo errors detected.\n");
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else printf("\nFailed.\n");
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return d0.crc;
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}
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