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check dimensions of uninitialized array declarations

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Fix for #314
This commit is contained in:
Yashas 2018-06-14 21:54:49 +05:30 committed by YashasSamaga
parent da9d65057a
commit ad4ad64a8b
1 changed files with 10 additions and 6 deletions
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16
source/compiler/sc1.c
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@ -2490,17 +2490,21 @@ static void initials(int ident,int tag,cell *size,int dim[],int numdim,
cell tablesize; cell tablesize;
int curlit=litidx; int curlit=litidx;
int err=0; int err=0;
int i;
if (!matchtoken('=')) { if (!matchtoken('=')) {
assert(ident!=iARRAY || numdim>0); assert(ident!=iARRAY || numdim>0);
if (ident==iARRAY && dim[numdim-1]==0) {
/* declared as "myvar[];" which is senseless (note: this *does* make
* sense in the case of a iREFARRAY, which is a function parameter)
*/
error(9); /* array has zero length -> invalid size */
} /* if */
if (ident==iARRAY) { if (ident==iARRAY) {
assert(numdim>0 && numdim<=sDIMEN_MAX); assert(numdim>0 && numdim<=sDIMEN_MAX);
for (i=0; i<numdim; i++) {
if (dim[i]==0) {
/* declared like "myvar[];" which is senseless (note: this *does* make
* sense in the case of a iREFARRAY, which is a function parameter)
*/
error(9); /* array has zero length -> invalid size */
return;
} /* if */
} /* for */
*size=calc_arraysize(dim,numdim,0); *size=calc_arraysize(dim,numdim,0);
if (*size==(cell)CELL_MAX) { if (*size==(cell)CELL_MAX) {
error(9); /* array is too big -> invalid size */ error(9); /* array is too big -> invalid size */