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fixes memory corruption with multi-dimensional arrays #153

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May 1, 2017
Merged

fixes memory corruption with multi-dimensional arrays #153

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10 changes: 8 additions & 2 deletions source/compiler/sc1.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2456,12 +2456,18 @@ static void initials(int ident,int tag,cell *size,int dim[],int numdim,
constvalue lastdim={NULL,"",0,0}; /* sizes of the final dimension */
int skipdim=0;

if (dim[numdim-1]!=0)
*size=calc_arraysize(dim,numdim,0); /* calc. full size, if known */
/* check if the user has given the size of all dimensions */
for (idx = 0; idx < numdim; idx++)
if (dim[idx] == 0)
break;
/* already reserve space for the indirection tables (for an array with
* known dimensions)
* (do not use dumpzero(), as it bypasses the literal queue)
*/
if(idx == numdim)
*size=calc_arraysize(dim,numdim,0); /* user has provided the size of all the dimensions, so calculate the size */
else
*size = 0; /* user hasn't given the size for one or more dimensions */
for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
litadd(0);
/* now initialize the sub-arrays */
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