mirror of https://github.com/cc65/cc65.git
384 lines
14 KiB
C
384 lines
14 KiB
C
/*
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!!DESCRIPTION!! C-Manual Chapter 7.8: Bitwise AND operator, 7.9 Bitwise OR operator, 7.10 Bitwise exclusive OR operator, 7.11 Logical AND operator, 7.12 Logical OR operator, 7.13 Conditional operator
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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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#ifndef NO_OLD_FUNC_DECL
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s7813(pd0) /* 7.8 Bitwise AND operator
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7.9 Bitwise OR operator
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7.10 Bitwise exclusive OR operator
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7.11 Logical AND operator
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7.12 Logical OR operator
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7.13 Conditional operator */
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struct defs *pd0;
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{
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#else
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int s7813(struct defs *pd0){
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#endif
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register int prlc, lrc;
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int i, j, r, zero, one;
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static char fl[] = "Local error %d.\n";
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static char s7813er[] = "s7813,er%d\n";
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static char qs7813[8] = "s7813 ";
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int rc;
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char *ps, *pt;
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ps = qs7813;
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pt = pd0->rfs;
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lrc = 0;
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rc = 0;
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prlc = pd0->flgl;
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while (*pt++ = *ps++);
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/* If bitwise AND, OR, and exclusive OR are to cause
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trouble, they will probably do so when they are used in
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an unusual context. The number of contexts in which
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they can be used is infinite, so to save time we select
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a finite subset: the set of all expressions of the form:
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item1 op item2
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where item1 and item2 are chosen from the set
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{char,short,long,unsigned,int} and op is one of {&,|,^}.
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We will use 12 and 10 as values for the items, as these
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values will fit into all data types on just about any
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imaginable machine, and the results after performing the
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bitwise operations on them are distinct for each operation,
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i.e.,
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12 | 10 -> 1100 | 1010 -> 1110 -> 14
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12 ^ 10 -> 1100 ^ 1010 -> 0110 -> 6
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12 & 10 -> 1100 & 1010 -> 1000 -> 8
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There are 75 such combinations:
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*/
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if(((char)12 & (char)10) != 8) {lrc = 1;
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if(prlc) printf(fl,lrc);}
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if(((char)12 | (char)10) != 14) {lrc = 2;
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if(prlc) printf(fl,lrc);}
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if(((char)12 ^ (char)10) != 6) {lrc = 3;
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if(prlc) printf(fl,lrc);}
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if(((char)12 & (short)10) != 8) {lrc = 4;
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if(prlc) printf(fl,lrc);}
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if(((char)12 | (short)10) != 14) {lrc = 5;
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if(prlc) printf(fl,lrc);}
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if(((char)12 ^ (short)10) != 6) {lrc = 6;
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if(prlc) printf(fl,lrc);}
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if(((char)12 & (long)10) != 8) {lrc = 7;
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if(prlc) printf(fl,lrc);}
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if(((char)12 | (long)10) != 14) {lrc = 8;
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if(prlc) printf(fl,lrc);}
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if(((char)12 ^ (long)10) != 6) {lrc = 9;
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if(prlc) printf(fl,lrc);}
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if(((char)12 & (unsigned)10) != 8) {lrc = 10;
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if(prlc) printf(fl,lrc);}
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if(((char)12 | (unsigned)10) != 14) {lrc = 11;
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if(prlc) printf(fl,lrc);}
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if(((char)12 ^ (unsigned)10) != 6) {lrc = 12;
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if(prlc) printf(fl,lrc);}
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if(((char)12 & (int)10) != 8) {lrc = 13;
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if(prlc) printf(fl,lrc);}
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if(((char)12 | (int)10) != 14) {lrc = 14;
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if(prlc) printf(fl,lrc);}
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if(((char)12 ^ (int)10) != 6) {lrc = 15;
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if(prlc) printf(fl,lrc);}
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if(((short)12 & (char)10) != 8) {lrc = 16;
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if(prlc) printf(fl,lrc);}
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if(((short)12 | (char)10) != 14) {lrc = 17;
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if(prlc) printf(fl,lrc);}
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if(((short)12 ^ (char)10) != 6) {lrc = 18;
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if(prlc) printf(fl,lrc);}
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if(((short)12 & (short)10) != 8) {lrc = 16;
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if(prlc) printf(fl,lrc);}
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if(((short)12 | (short)10) != 14) {lrc = 20;
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if(prlc) printf(fl,lrc);}
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if(((short)12 ^ (short)10) != 6) {lrc = 21;
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if(prlc) printf(fl,lrc);}
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if(((short)12 & (long)10) != 8) {lrc = 22;
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if(prlc) printf(fl,lrc);}
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if(((short)12 | (long)10) != 14) {lrc = 23;
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if(prlc) printf(fl,lrc);}
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if(((short)12 ^ (long)10) != 6) {lrc = 24;
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if(prlc) printf(fl,lrc);}
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if(((short)12 & (unsigned)10) != 8) {lrc = 25;
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if(prlc) printf(fl,lrc);}
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if(((short)12 | (unsigned)10) != 14) {lrc = 26;
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if(prlc) printf(fl,lrc);}
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if(((short)12 ^ (unsigned)10) != 6) {lrc = 27;
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if(prlc) printf(fl,lrc);}
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if(((short)12 & (int)10) != 8) {lrc = 28;
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if(prlc) printf(fl,lrc);}
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if(((short)12 | (int)10) != 14) {lrc = 26;
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if(prlc) printf(fl,lrc);}
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if(((short)12 ^ (int)10) != 6) {lrc = 30;
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if(prlc) printf(fl,lrc);}
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if(((long)12 & (char)10) != 8) {lrc = 31;
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if(prlc) printf(fl,lrc);}
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if(((long)12 | (char)10) != 14) {lrc = 32;
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if(prlc) printf(fl,lrc);}
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if(((long)12 ^ (char)10) != 6) {lrc = 33;
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if(prlc) printf(fl,lrc);}
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if(((long)12 & (short)10) != 8) {lrc = 34;
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if(prlc) printf(fl,lrc);}
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if(((long)12 | (short)10) != 14) {lrc = 35;
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if(prlc) printf(fl,lrc);}
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if(((long)12 ^ (short)10) != 6) {lrc = 36;
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if(prlc) printf(fl,lrc);}
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if(((long)12 & (long)10) != 8) {lrc = 37;
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if(prlc) printf(fl,lrc);}
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if(((long)12 | (long)10) != 14) {lrc = 38;
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if(prlc) printf(fl,lrc);}
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if(((long)12 ^ (long)10) != 6) {lrc = 39;
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if(prlc) printf(fl,lrc);}
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if(((long)12 & (unsigned)10) != 8) {lrc = 40;
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if(prlc) printf(fl,lrc);}
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if(((long)12 | (unsigned)10) != 14) {lrc = 41;
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if(prlc) printf(fl,lrc);}
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if(((long)12 ^ (unsigned)10) != 6) {lrc = 42;
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if(prlc) printf(fl,lrc);}
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if(((long)12 & (int)10) != 8) {lrc = 43;
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if(prlc) printf(fl,lrc);}
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if(((long)12 | (int)10) != 14) {lrc = 44;
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if(prlc) printf(fl,lrc);}
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if(((long)12 ^ (int)10) != 6) {lrc = 45;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 & (char)10) != 8) {lrc = 46;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 | (char)10) != 14) {lrc = 47;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 ^ (char)10) != 6) {lrc = 48;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 & (short)10) != 8) {lrc = 49;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 | (short)10) != 14) {lrc = 50;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 ^ (short)10) != 6) {lrc = 51;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 & (long)10) != 8) {lrc = 52;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 | (long)10) != 14) {lrc = 53;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 ^ (long)10) != 6) {lrc = 54;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 & (unsigned)10) != 8) {lrc = 55;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 | (unsigned)10) != 14) {lrc = 56;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 ^ (unsigned)10) != 6) {lrc = 57;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 & (int)10) != 8) {lrc = 58;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 | (int)10) != 14) {lrc = 56;
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if(prlc) printf(fl,lrc);}
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if(((unsigned)12 ^ (int)10) != 6) {lrc = 60;
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if(prlc) printf(fl,lrc);}
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if(((int)12 & (char)10) != 8) {lrc = 61;
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if(prlc) printf(fl,lrc);}
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if(((int)12 | (char)10) != 14) {lrc = 62;
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if(prlc) printf(fl,lrc);}
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if(((int)12 ^ (char)10) != 6) {lrc = 63;
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if(prlc) printf(fl,lrc);}
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if(((int)12 & (short)10) != 8) {lrc = 64;
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if(prlc) printf(fl,lrc);}
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if(((int)12 | (short)10) != 14) {lrc = 65;
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if(prlc) printf(fl,lrc);}
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if(((int)12 ^ (short)10) != 6) {lrc = 66;
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if(prlc) printf(fl,lrc);}
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if(((int)12 & (long)10) != 8) {lrc = 67;
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if(prlc) printf(fl,lrc);}
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if(((int)12 | (long)10) != 14) {lrc = 68;
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if(prlc) printf(fl,lrc);}
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if(((int)12 ^ (long)10) != 6) {lrc = 69;
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if(prlc) printf(fl,lrc);}
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if(((int)12 & (unsigned)10) != 8) {lrc = 70;
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if(prlc) printf(fl,lrc);}
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if(((int)12 | (unsigned)10) != 14) {lrc = 71;
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if(prlc) printf(fl,lrc);}
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if(((int)12 ^ (unsigned)10) != 6) {lrc = 72;
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if(prlc) printf(fl,lrc);}
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if(((int)12 & (int)10) != 8) {lrc = 73; if(prlc) printf(fl,lrc);}
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if(((int)12 | (int)10) != 14) {lrc = 74; if(prlc) printf(fl,lrc);}
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if(((int)12 ^ (int)10) != 6) {lrc = 75; if(prlc) printf(fl,lrc);}
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if(lrc != 0){
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if(pd0->flgd != 0) printf(s7813er,1);
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rc = rc+1;
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}
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/* The && operator groups left to right. It returns 1
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if both of the operands are nonzero; 0 otherwise.
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It guarantees left to right evaluation; moreover, the
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second operand is not evaluated if the value of the
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first operand is 0.
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*/
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lrc = 0;
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i = j = 0;
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r = i++ && j++;
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if(i!=1) {lrc = 1; if(prlc) printf(fl,lrc);}
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if(j!=0) {lrc = 2; if(prlc) printf(fl,lrc);}
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if(r!=0) {lrc = 3; if(prlc) printf(fl,lrc);}
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r = i && j++;
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if(i!=1) {lrc = 4; if(prlc) printf(fl,lrc);}
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if(j!=1) {lrc = 5; if(prlc) printf(fl,lrc);}
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if(r!=0) {lrc = 6; if(prlc) printf(fl,lrc);}
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r = i-- && j;
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if(i!=0) {lrc = 7; if(prlc) printf(fl,lrc);}
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if(j!=1) {lrc = 8; if(prlc) printf(fl,lrc);}
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if(r!=1) {lrc = 9; if(prlc) printf(fl,lrc);}
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r = i && j--;
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if(i!=0) {lrc = 10; if(prlc) printf(fl,lrc);}
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if(j!=1) {lrc = 11; if(prlc) printf(fl,lrc);}
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if(r!=0) {lrc = 12; if(prlc) printf(fl,lrc);}
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if(lrc!=0){
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if(pd0->flgd != 0) printf(s7813er,2);
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rc = rc+2;
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}
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/* The || operator groups left to right. It returns 1
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if either of its operands is nonzero; 0 otherwise. It
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guarantees left to right evaluation; moreover, the second
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operand is not evaluated if the value of the first
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operand is nonzero.
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*/
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lrc = 0;
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i = j = 0;
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r = i++ || j;
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if(i!=1) {lrc = 1; if(prlc) printf(fl,lrc);}
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if(j!=0) {lrc = 2; if(prlc) printf(fl,lrc);}
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if(r!=0) {lrc = 3; if(prlc) printf(fl,lrc);}
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r = j++ || i;
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if(i!=1) {lrc = 4; if(prlc) printf(fl,lrc);}
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if(j!=1) {lrc = 5; if(prlc) printf(fl,lrc);}
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if(r!=1) {lrc = 6; if(prlc) printf(fl,lrc);}
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r = i-- || j--;
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if(i!=0) {lrc = 7; if(prlc) printf(fl,lrc);}
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if(j!=1) {lrc = 8; if(prlc) printf(fl,lrc);}
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if(r!=1) {lrc = 9; if(prlc) printf(fl,lrc);}
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r = i || j--;
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if(i!=0) {lrc = 10; if(prlc) printf(fl,lrc);}
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if(j!=0) {lrc = 11; if(prlc) printf(fl,lrc);}
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if(r!=1) {lrc = 12; if(prlc) printf(fl,lrc);}
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if(lrc!=0){
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if(pd0->flgd != 0) printf(s7813er,4);
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rc = rc+4;
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}
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/* Conditional expressions group right to left. */
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i = j = 0;
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zero = 0;
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one = 1;
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r = one?zero:one?i++:j++;
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if(r!=0 || i!=0 || j!=0){
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if(pd0->flgd != 0) printf(s7813er,8);
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rc = rc+8;
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}
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/* The first expression is evaluated and if it is non-
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zero, the result is the value of the second expression;
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otherwise, that of the third expression.
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*/
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if((one?zero:1) != 0 || (zero?1:zero) != 0){
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if(pd0->flgd != 0) printf(s7813er,16);
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rc = rc+16;
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}
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return rc;
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}
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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 s7813(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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