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Compiler: Improve sizeof return on array without specifiying the dimensions.

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Imported from Pawn 3.1.3636.

"When making an array without specifiying the dimensions, but where the element
count at the lowest dimension is the same for all, the compiler now "counts"
this size, rather than setting the lowest dimension as "variable length".

An example for this situation is the declaration:
    new my_array[][] = { {1,0}, {2,1}, {3,1} }
No dimensions are given, but the new compiler determines that the minor
dimension is 2 (and the major dimension is 3). Previous compilers set the
minor dimension to 0 --meaning "variable"."
This commit is contained in:
Arkshine 2014-08-15 18:20:21 +02:00
parent cd189320e5
commit c4b233d094
1 changed files with 18 additions and 0 deletions
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18
compiler/libpc300/sc1.c
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@ -2248,6 +2248,24 @@ static void initials(int ident,int tag,cell *size,int dim[],int numdim,
err++;
} /* if */
} /* for */
if (numdim>1 && dim[numdim-1]==0) {
/* also look whether, by any chance, all "counted" final dimensions are
* the same value; if so, we can store this
*/
constvalue *ld=lastdim.next;
int d,match;
for (d=0; d<dim[numdim-2]; d++) {
assert(ld!=NULL);
assert(strtol(ld->name,NULL,16)==d);
if (d==0)
match=ld->value;
else if (match!=ld->value)
break;
ld=ld->next;
} /* for */
if (d==dim[numdim-2])
dim[numdim-1]=match;
} /* if */
/* after all arrays have been initalized, we know the (major) dimensions
* of the array and we can properly adjust the indirection vectors
*/