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304 lines
10 KiB
C
304 lines
10 KiB
C
/*
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!!DESCRIPTION!! C-Manual Chapter 2.41: integer constants, 2.42: explizit long constants
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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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/* INTEGER_CONSTANT_MAX_32BIT
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** This suppresses constants longer than 32-bit, which are now an error:
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** https://github.com/cc65/cc65/pull/2084
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** Because cc65's internal representation is implicitly/explicitly
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** 32-bit in many places, values larger than this aren't representable,
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** but also can't be checked for overflow once accepted.
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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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/*
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2.4.1 Integer constants
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2.4.2 Explicit long constants
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*/
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/* Calculate 2**n by multiplying, not shifting */
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#ifndef NO_OLD_FUNC_DECL
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long pow2(n)
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long n;
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{
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#else
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long pow2(long n) {
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#endif
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long s;
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s = 1;
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while(n--) s = s*2;
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return s;
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}
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#ifndef INTEGER_CONSTANT_MAX_32BIT
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#define CTCOUNT 39
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#else
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#define CTCOUNT 36
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#endif
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long d[CTCOUNT], o[CTCOUNT], x[CTCOUNT];
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#ifndef NO_OLD_FUNC_DECL
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s241(pd0)
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struct defs *pd0;
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{
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#else
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int s241(struct defs *pd0) {
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#endif
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/* long pow2(); */
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static char s241er[] = "s241,er%d\n";
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static char qs241[8] = "s241 ";
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char *ps, *pt;
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int rc, j, lrc;
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static long g[39] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,6,0,8,0,12,0,16,0,18,0,20,0,24,
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0,28,0,30,0,32,0,36};
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/* long d[39], o[39], x[39]; */
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rc = 0;
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lrc = 0;
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ps = qs241;
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pt = pd0 -> rfs;
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while (*pt++ = *ps++);
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/* An integer constant consisting of a sequence of digits is
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taken to be octal if it begins with 0 (digit zero), decimal
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otherwise. */
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if ( 8 != 010
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|| 16 != 020
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|| 24 != 030
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|| 32 != 040
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|| 40 != 050
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|| 48 != 060
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|| 56 != 070
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|| 64 != 0100
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|| 72 != 0110
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|| 80 != 0120
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|| 9 != 0011
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|| 17 != 0021
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|| 25 != 0031
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|| 33 != 0041
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|| 41 != 0051
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|| 49 != 0061
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|| 57 != 0071
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|| 65 != 0101
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|| 73 != 0111
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|| 81 != 0121 ){
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rc = rc+1;
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if( pd0->flgd != 0 ) printf(s241er,1);
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}
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/* A sequence of digits preceded by 0x or 0X (digit zero)
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is taken to be a hexadecimal integer. The hexadecimal
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digits include a or A through f or F with values 10
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through 15. */
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if ( 0x00abcdef != 0xabcdef
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|| 0xabcdef != 0Xabcdef || 0Xabcdef != 0XAbcdef
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|| 0XAbcdef != 0XABcdef || 0XABcdef != 0XABCdef
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|| 0XABCdef != 0XABCDef || 0XABCDef != 0XABCDEf
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|| 0XABCDEf != 0XABCDEF || 0xABCDEF != 11259375 ){
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rc = rc+2;
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if( pd0->flgd != 0 ) printf(s241er,2);
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}
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/* A decimal constant whose value exceeds the largest signed
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machine integer is taken to be long; an octal or hex con-
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stant which exceeds the largest unsigned machine integer
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is likewise taken to be long. */
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#if defined(REFERENCE) && defined(REFCC_SIZEOF_LONG_64BIT)
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/*#warning "sizeof(long)!=4, skipping test"*/
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#else
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if ( sizeof 010000000000 != sizeof(long) /* 2**30 */
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|| sizeof 1073741824 != sizeof(long) /* ditto */
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|| sizeof 0x40000000 != sizeof(long) ){ /* " */
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rc = rc+4;
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if( pd0->flgd != 0 ) printf(s241er,4);
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}
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#endif
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/* A decimal, octal, or hexadecimal constant immediately followed
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by l (letter ell) or L is a long constant. */
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if ( sizeof 67l != sizeof(long)
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|| sizeof 67L != sizeof(long)
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|| sizeof 067l != sizeof(long)
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|| sizeof 067L != sizeof(long)
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|| sizeof 0X67l != sizeof(long)
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|| sizeof 0x67L != sizeof(long) ){
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rc = rc+8;
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if( pd0 -> flgd != 0 ) printf(s241er,8);
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}
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/* Finally, we test to see that decimal (d), octal (o),
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and hexadecimal (x) constants representing the same values
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agree among themselves, and with computed values, at spec-
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ified points over an appropriate range. The points select-
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ed here are those with the greatest potential for caus-
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ing trouble, i.e., zero, 1-16, and values of 2**n and
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2**n - 1 where n is some multiple of 4 or 6. Unfortunately,
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just what happens when a value is too big to fit in a
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long is undefined; however, it would be nice if what
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happened were at least consistent... */
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for ( j=0; j<17; j++ ) g[j] = j;
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for ( j=18; j<39; ) {
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g[j] = pow2(g[j]);
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g[j-1] = g[j] - 1;
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j = j+2;
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}
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d[0] = 0; o[0] = 00; x[0] = 0x0;
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d[1] = 1; o[1] = 01; x[1] = 0x1;
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d[2] = 2; o[2] = 02; x[2] = 0x2;
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d[3] = 3; o[3] = 03; x[3] = 0x3;
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d[4] = 4; o[4] = 04; x[4] = 0x4;
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d[5] = 5; o[5] = 05; x[5] = 0x5;
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d[6] = 6; o[6] = 06; x[6] = 0x6;
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d[7] = 7; o[7] = 07; x[7] = 0x7;
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d[8] = 8; o[8] = 010; x[8] = 0x8;
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d[9] = 9; o[9] = 011; x[9] = 0x9;
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d[10] = 10; o[10] = 012; x[10] = 0xa;
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d[11] = 11; o[11] = 013; x[11] = 0xb;
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d[12] = 12; o[12] = 014; x[12] = 0xc;
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d[13] = 13; o[13] = 015; x[13] = 0xd;
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d[14] = 14; o[14] = 016; x[14] = 0xe;
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d[15] = 15; o[15] = 017; x[15] = 0xf;
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d[16] = 16; o[16] = 020; x[16] = 0x10;
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d[17] = 63; o[17] = 077; x[17] = 0x3f;
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d[18] = 64; o[18] = 0100; x[18] = 0x40;
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d[19] = 255; o[19] = 0377; x[19] = 0xff;
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d[20] = 256; o[20] = 0400; x[20] = 0x100;
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d[21] = 4095; o[21] = 07777; x[21] = 0xfff;
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d[22] = 4096; o[22] = 010000; x[22] = 0x1000;
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d[23] = 65535; o[23] = 0177777; x[23] = 0xffff;
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d[24] = 65536; o[24] = 0200000; x[24] = 0x10000;
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d[25] = 262143; o[25] = 0777777; x[25] = 0x3ffff;
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d[26] = 262144; o[26] = 01000000; x[26] = 0x40000;
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d[27] = 1048575; o[27] = 03777777; x[27] = 0xfffff;
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d[28] = 1048576; o[28] = 04000000; x[28] = 0x100000;
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d[29] = 16777215; o[29] = 077777777; x[29] = 0xffffff;
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d[30] = 16777216; o[30] = 0100000000; x[30] = 0x1000000;
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d[31] = 268435455; o[31] = 01777777777; x[31] = 0xfffffff;
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d[32] = 268435456; o[32] = 02000000000; x[32] = 0x10000000;
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d[33] = 1073741823; o[33] = 07777777777; x[33] = 0x3fffffff;
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d[34] = 1073741824; o[34] = 010000000000; x[34] = 0x40000000;
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d[35] = 4294967295; o[35] = 037777777777; x[35] = 0xffffffff;
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#if CTCOUNT > 36
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d[36] = 4294967296; o[36] = 040000000000; x[36] = 0x100000000;
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d[37] = 68719476735; o[37] = 0777777777777; x[37] = 0xfffffffff;
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d[38] = 68719476736; o[38] = 01000000000000; x[38] = 0x1000000000;
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#endif
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/* WHEW! */
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for (j=0; j<CTCOUNT; j++){
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if ( g[j] != d[j]
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|| d[j] != o[j]
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|| o[j] != x[j]) {
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if( pd0 -> flgm != 0 ) {
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/* printf(s241er,16); save in case opinions change... */
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printf("Decimal and octal/hex constants sometimes give\n");
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printf(" different results when assigned to longs.\n");
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}
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/* lrc = 1; save... */
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}
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}
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if (lrc != 0) rc =16;
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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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#define cq_sections 1
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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 s241(pd0);
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}
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}
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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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