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Incremental ... initialization of 2d arrays

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This is fully supported now:

    new arr[3][3] = {{0, 1, ...}, {0, 2, ...}, ...};

will produce:

    {{0, 1, 2}, {0, 2, 4}, {0, 3, 6}}

and this:

    new arr[3][3] = {{0, 1, ...}, ...};

will yield:

    {{0, 1, 2}, {0, 1, 2}, {0, 1, 2}}

Refs #48
This commit is contained in:
Zeex 2015-04-03 23:15:05 +06:00
parent e1082f64bc
commit 35190f55fb
1 changed files with 20 additions and 23 deletions
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43
source/compiler/sc1.c
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@ -2460,18 +2460,14 @@ static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
int startlit,int counteddim[],constvalue *lastdim,
constvalue *enumroot,int *errorfound)
{
cell dsize,totalsize;
int idx,numvectors,abortparse,ellips;
const char *initptr,*prev_initptr;
cell dsize,totalsize=0;
int idx=0,vec_idx,abortparse=FALSE;
cell *prev1=NULL,*prev2=NULL;
assert(cur>=0 && cur<numdim);
assert(startlit>=0);
assert(cur+2<=numdim); /* there must be 2 dimensions or more to do */
assert(errorfound!=NULL && *errorfound==FALSE);
idx=0;
prev_initptr=NULL;
totalsize=0;
abortparse=FALSE;
needtoken('{');
do {
int ellips=FALSE;
@ -2493,28 +2489,29 @@ static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dsize=initarray(ident,tag,dim,numdim,cur+1,startlit,counteddim,
lastdim,enumroot,errorfound);
} else {
initptr=lptr;
numvectors=idx+1;
if ((ellips=matchtoken(tELLIPS))!=0)
numvectors=dim[cur];
dsize=0;
while (idx<numvectors) {
if (ellips && prev_initptr!=NULL)
lptr=prev_initptr; /* go back to array initializer */
dsize+=initvector(ident,tag,dim[cur+1],TRUE,enumroot,errorfound);
if (*errorfound)
break;
if (matchtoken(tELLIPS)!=0) {
if (prev1!=NULL)
while (idx < dim[cur]) {
for (vec_idx=0; vec_idx < dsize; vec_idx++) {
if (prev2!=NULL)
litadd(prev1[vec_idx]+(prev1[vec_idx]-prev2[vec_idx]));
else
litadd(prev1[vec_idx]);
} /* for */
append_constval(lastdim,itoh(idx++),dsize,0);
} /* while */
else
error(41); /* invalid ellipsis, array size unknown */
} else {
prev2=prev1;
prev1=&litq[litidx];
dsize=initvector(ident,tag,dim[cur+1],TRUE,enumroot,errorfound);
/* The final dimension may be variable length. We need to save the
* lengths of the final dimensions in order to set the indirection
* vectors for the next-to-last dimension.
*/
append_constval(lastdim,itoh(idx++),dsize,0);
} /* for */
if (ellips) {
needtoken(',');
needtoken(tELLIPS);
} /* if */
prev_initptr=initptr;
} /* if */
totalsize+=dsize;
if (*errorfound || !matchtoken(','))