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Work on reducing allocation leaks in read_number(). This is now improved, but not yet satisfactory.

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This commit is contained in:
Simon Brooke 2026-02-04 22:57:10 +00:00
parent e489d02069
commit 351ca5bd17
9 changed files with 275 additions and 17 deletions
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33
src/io/read.c
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@ -330,17 +330,20 @@ struct cons_pointer read_number( struct stack_frame *frame,
debug_print( L"read_number: ratio slash seen\n",
DEBUG_IO );
dividend = result;
result = make_integer( 0, NIL );
}
break;
case LCOMMA:
// silently ignore comma.
break;
default:
result = add_integers( multiply_integers( result, base ),
make_integer( ( int ) c - ( int ) '0',
NIL ) );
{
struct cons_pointer digit = make_integer( ( int ) c - ( int ) '0',
NIL );
struct cons_pointer new_result = add_integers( multiply_integers( result, base ),
digit );
dec_ref( result);
dec_ref( digit);
result = new_result;
debug_printf( DEBUG_IO,
L"read_number: added character %c, result now ",
@ -351,6 +354,7 @@ struct cons_pointer read_number( struct stack_frame *frame,
if ( seen_period ) {
places_of_decimals++;
}
}
}
}
@ -360,13 +364,14 @@ struct cons_pointer read_number( struct stack_frame *frame,
url_ungetwc( c, input );
if ( seen_period ) {
debug_print( L"read_number: converting result to real\n", DEBUG_IO );
struct cons_pointer div = make_ratio( result,
make_integer( powl
( to_long_double
( base ),
struct cons_pointer divisor = make_integer( powl( to_long_double( base ),
places_of_decimals ),
NIL ) );
NIL );
debug_print( L"read_number: converting result to real\n", DEBUG_IO );
struct cons_pointer div = make_ratio( result,
divisor);
dec_ref( divisor);
inc_ref( div );
result = make_real( to_long_double( div ) );
@ -378,15 +383,19 @@ struct cons_pointer read_number( struct stack_frame *frame,
}
if ( neg ) {
struct cons_pointer negt = negative( result );
debug_print( L"read_number: converting result to negative\n",
DEBUG_IO );
result = negative( result );
dec_ref( result);
result = negt;
}
debug_print( L"read_number returning\n", DEBUG_IO );
debug_dump_object( result, DEBUG_IO );
dec_ref( base);
return result;
}