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Also use union with double field to ensure correct alignment for float64 type from genmath.inc source

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git-svn-id: trunk@45779 -
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pierre 2020-07-13 13:18:32 +00:00
parent ac5407268c
commit 834dbf5f80
1 changed files with 10 additions and 5 deletions
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15
rtl/inc/genmath.inc
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@ -62,21 +62,26 @@
type type
PReal = ^Real; PReal = ^Real;
{ also necessary for Int() on systems with 64bit floats (JM) } { also necessary for Int() on systems with 64bit floats (JM) }
{ union required to get correct alignement for floating point type }
{$ifndef FPC_SYSTEM_HAS_float64} {$ifndef FPC_SYSTEM_HAS_float64}
{$ifdef ENDIAN_LITTLE} {$ifdef ENDIAN_LITTLE}
float64 = record float64 = record
{$ifndef FPC_DOUBLE_HILO_SWAPPED} case byte of
low,high: longint; 1: (dummy : double);
{$ifndef FPC_DOUBLE_HILO_SWAPPED}
2: (low,high: longint);
{$else} {$else}
high,low: longint; 2: (high,low: longint);
{$endif FPC_DOUBLE_HILO_SWAPPED} {$endif FPC_DOUBLE_HILO_SWAPPED}
end; end;
{$else} {$else}
float64 = record float64 = record
case byte of
1: (dummy : double);
{$ifndef FPC_DOUBLE_HILO_SWAPPED} {$ifndef FPC_DOUBLE_HILO_SWAPPED}
high,low: longint; 2: (high,low: longint);
{$else} {$else}
low,high: longint; 2: (low,high: longint);
{$endif FPC_DOUBLE_HILO_SWAPPED} {$endif FPC_DOUBLE_HILO_SWAPPED}
end; end;
{$endif} {$endif}