mirror of
https://github.com/cc65/cc65.git
synced 2024-11-18 00:07:21 +00:00
154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
/*
|
|
!!DESCRIPTION!! C-Manual Chapter 7.15: Comma operator
|
|
!!ORIGIN!! LCC 4.1 Testsuite
|
|
!!LICENCE!! own, freely distributeable for non-profit. read CPYRIGHT.LCC
|
|
*/
|
|
|
|
#include "common.h"
|
|
|
|
struct defs {
|
|
int cbits; /* No. of bits per char */
|
|
int ibits; /* int */
|
|
int sbits; /* short */
|
|
int lbits; /* long */
|
|
int ubits; /* unsigned */
|
|
int fbits; /* float */
|
|
int dbits; /* double */
|
|
#ifndef NO_FLOATS
|
|
float fprec; /* Smallest number that can be */
|
|
float dprec; /* significantly added to 1. */
|
|
#endif
|
|
int flgs; /* Print return codes, by section */
|
|
int flgm; /* Announce machine dependencies */
|
|
int flgd; /* give explicit diagnostics */
|
|
int flgl; /* Report local return codes. */
|
|
int rrc; /* recent return code */
|
|
int crc; /* Cumulative return code */
|
|
char rfs[8]; /* Return from section */
|
|
};
|
|
|
|
int lbits; /* long */
|
|
int ubits; /* unsigned */
|
|
int fbits; /* float */
|
|
int dbits; /* double */
|
|
#ifndef NO_FLOATS
|
|
float fprec; /* Smallest number that can be */
|
|
float dprec; /* significantly added to 1. */
|
|
#endif
|
|
int flgs; /* Print return codes, by section */
|
|
int flgm; /* Announce machine dependencies */
|
|
int flgd; /* give explicit diagnostics */
|
|
int flgl; /* Report local return codes. */
|
|
int rrc; /* recent return code */
|
|
int crc; /* Cumulative return code */
|
|
char rfs[8]; /* Return from section */
|
|
|
|
/*#include "cq26.c"*/ /* hardware check */
|
|
#ifdef NO_IMPLICIT_FUNC_PROTOTYPES
|
|
s715f(int x,int y,int z);
|
|
#endif
|
|
|
|
#ifndef NO_OLD_FUNC_DECL
|
|
s715(pd0) /* 7.15 Comma operator */
|
|
struct defs *pd0;
|
|
{
|
|
#else
|
|
int s715(struct defs *pd0) {
|
|
#endif
|
|
static char s715er[] = "s715,er%d\n";
|
|
static char qs715[8] = "s715 ";
|
|
int rc;
|
|
char *ps, *pt;
|
|
int a, t, c, i;
|
|
a = c = 0;
|
|
ps = qs715;
|
|
pt = pd0->rfs;
|
|
rc = 0;
|
|
while (*pt++ = *ps++);
|
|
|
|
/* A pair of expressions separated by a comma is
|
|
evaluated left to right and the value of the left
|
|
expression is discarded.
|
|
*/
|
|
i = 1;
|
|
if( i++,i++,i++,i++,++i != 6 ){
|
|
if(pd0->flgd != 0) printf(s715er,1);
|
|
rc = rc+1;
|
|
}
|
|
|
|
/* In contexts where the comma is given a special mean-
|
|
ing, for example in a list of actual arguments to
|
|
functions (sic) and lists of initializers, the comma
|
|
operator as described in this section can only appear
|
|
in parentheses; for example
|
|
|
|
f( a, (t=3, t+2), c)
|
|
|
|
has three arguments, the second of which has the
|
|
value 5.
|
|
*/
|
|
|
|
if(s715f(a, (t=3, t+2), c) != 5){
|
|
if(pd0->flgd != 0) printf(s715er,2);
|
|
rc = rc+2;
|
|
}
|
|
return rc;
|
|
}
|
|
s715f(x,y,z)
|
|
int x, y, z;
|
|
{
|
|
return y;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
the main loop that launches the sections
|
|
*********************************************************************************************/
|
|
|
|
#ifndef NO_TYPELESS_STRUCT_PTR
|
|
int section(int j,struct* pd0){
|
|
#else
|
|
int section(int j,void* pd0){
|
|
#endif
|
|
switch(j){
|
|
/*case 0: return s26(pd0);*/
|
|
case 0: return s715(pd0);
|
|
}
|
|
}
|
|
|
|
#define cq_sections 1
|
|
|
|
/*
|
|
C REFERENCE MANUAL (main)
|
|
*/
|
|
|
|
#ifndef NO_OLD_FUNC_DECL
|
|
main(n,args)
|
|
int n;
|
|
char **args;
|
|
{
|
|
#else
|
|
int main(int n,char **args) {
|
|
#endif
|
|
|
|
int j;
|
|
static struct defs d0, *pd0;
|
|
|
|
d0.flgs = 1; /* These flags dictate */
|
|
d0.flgm = 1; /* the verbosity of */
|
|
d0.flgd = 1; /* the program. */
|
|
d0.flgl = 1;
|
|
|
|
pd0 = &d0;
|
|
|
|
for (j=0; j<cq_sections; j++) {
|
|
d0.rrc=section(j,pd0);
|
|
d0.crc=d0.crc+d0.rrc;
|
|
if(d0.flgs != 0) printf("Section %s returned %d.\n",d0.rfs,d0.rrc);
|
|
}
|
|
|
|
if(d0.crc == 0) printf("\nNo errors detected.\n");
|
|
else printf("\nFailed.\n");
|
|
|
|
return d0.crc;
|
|
}
|