mirror of https://github.com/cc65/cc65.git
162 lines
4.6 KiB
C
162 lines
4.6 KiB
C
/*
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!!DESCRIPTION!! C-Manual Chapter 2.44: floating point 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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#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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s244(pd0)
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struct defs *pd0;
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{
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#else
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s244(struct defs *pd0) {
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#endif
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#ifndef NO_FLOATS
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double a[8];
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int rc, lrc, j;
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static char s244er[] = "s244,er%d\n";
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static char qs244[8] = "s244 ";
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char *ps, *pt;
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ps = qs244;
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pt = pd0->rfs;
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while(*pt++ = *ps++);
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rc = 0;
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lrc = 0;
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/* Unfortunately, there's not a lot we can do with floating constants.
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We can check to see that the various representations can be com-
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piled, that the conversion is such that they yield the same hard-
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ware representations in all cases, and that all representations
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thus checked are double precision. */
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a[0] = .1250E+04;
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a[1] = 1.250E3;
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a[2] = 12.50E02;
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a[3] = 125.0e+1;
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a[4] = 1250e00;
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a[5] = 12500.e-01;
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a[6] = 125000e-2;
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a[7] = 1250.;
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lrc = 0;
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for (j=0; j<7; j++) if(a[j] != a[j+1]) lrc = 1;
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if(lrc != 0) {
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if(pd0->flgd != 0) printf(s244er,1);
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rc = rc+1;
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}
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if ( (sizeof .1250E+04 ) != sizeof(double)
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|| (sizeof 1.250E3 ) != sizeof(double)
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|| (sizeof 12.50E02 ) != sizeof(double)
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|| (sizeof 1.250e+1 ) != sizeof(double)
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|| (sizeof 1250e00 ) != sizeof(double)
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|| (sizeof 12500.e-01) != sizeof(double)
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|| (sizeof 125000e-2 ) != sizeof(double)
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|| (sizeof 1250. ) != sizeof(double)){
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if(pd0->flgd != 0) printf(s244er,2);
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rc = rc+2;
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}
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return rc;
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#else
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return 0;
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#endif
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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 s244(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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