fpc/tests/test/cg/tcnvint4.pp
Jonas Maebe 71ecb3e83b * use a different value to test qword->double conversion, which
is less ambiguous as far as generating the "closest" floating point
    representation is concerned (fixes test on on systems where the max.
    fpu precision is double)

git-svn-id: trunk@13101 -
2009-05-05 10:48:21 +00:00

205 lines
4.6 KiB
ObjectPascal

{****************************************************************}
{ CODE GENERATOR TEST PROGRAM }
{****************************************************************}
{ NODE TESTED : secondtypeconvert() -> second_int_to_real }
{****************************************************************}
{ PRE-REQUISITES: secondload() }
{ secondassign() }
{ secondcalln() }
{ secondinline() }
{ secondadd() }
{****************************************************************}
{ DEFINES: }
{****************************************************************}
{ REMARKS: Tests integer to real conversion }
{ This routine assumes that there is a type conversion }
{ from all types to s32bit, u32bit or s64bit before conversion }
{ to a real. }
{****************************************************************}
program tcnvint4;
{$ifdef VER70}
{$define tp}
{$endif}
{$R-}
{$ifdef tp}
type
smallint = integer;
{$endif}
procedure fail;
begin
WriteLn('Failure.');
halt(1);
end;
const
RESULT_U64BIT = qword($8fc0000000000000);
RESULT_S64BIT = -101234;
RESULT_S32BIT = -1000000;
RESULT_U32BIT = 2000000;
RESULT_S16BIT = -12123;
RESULT_U16BIT = 12123;
RESULT_U8BIT = 247;
RESULT_S8BIT = -123;
{$ifndef tp}
function gets64bit : int64;
begin
gets64bit := RESULT_S64BIT;
end;
function getu64bit : qword;
begin
getu64bit := RESULT_U64BIT;
end;
{$endif}
function gets32bit : longint;
begin
gets32bit := RESULT_S32BIT;
end;
function gets16bit : smallint;
begin
gets16bit := RESULT_S16BIT;
end;
function gets8bit : shortint;
begin
gets8bit := RESULT_S8BIT;
end;
function getu8bit : byte;
begin
getu8bit := RESULT_U8BIT;
end;
function getu16bit : word;
begin
getu16bit := RESULT_U16BIT;
end;
function getu32bit : longint;
begin
getu32bit := RESULT_U32BIT;
end;
var
s32bit : longint;
failed : boolean;
s16bit : smallint;
s8bit : shortint;
u8bit : byte;
u16bit : word;
{$ifndef tp}
s64bit : int64;
u32bit : cardinal;
{$endif}
result_val : real;
begin
{ left : LOC_REFERENCE }
Write('second_int_to_real (left : LOC_REFERENCE)...');
s64bit := RESULT_S64BIT;
failed := false;
result_val := s64bit;
if trunc(result_val) <> RESULT_S64BIT then
failed:=true;
s32bit := RESULT_S32BIT;
result_val := s32bit;
if trunc(result_val) <> RESULT_S32BIT then
failed:=true;
u32bit := high(u32bit);
result_val := u32bit;
if trunc(result_val) <> high(u32bit) then
failed:=true;
u32bit := RESULT_U32BIT;
result_val := u32bit;
if trunc(result_val) <> RESULT_U32BIT then
failed:=true;
s16bit := RESULT_S16BIT;
result_val := s16bit;
if trunc(result_val) <> RESULT_S16BIT then
failed:=true;
u16bit := RESULT_U16BIT;
result_val := u16bit;
if trunc(result_val) <> RESULT_U16BIT then
failed:=true;
s8bit := RESULT_S8BIT;
result_val := s8bit;
if trunc(result_val) <> RESULT_S8BIT then
failed:=true;
u8bit := RESULT_U8BIT;
result_val := u8bit;
if trunc(result_val) <> RESULT_U8BIT then
failed:=true;
if failed then
fail
else
WriteLn('Passed!');
Write('second_int_to_real (left : LOC_REGISTER)...');
failed := false;
result_val := gets64bit;
if trunc(result_val) <> RESULT_S64BIT then
failed:=true;
result_val := getu64bit;
if result_val <> 10358279142952140800.0 then
begin
writeln('got ',result_val:0);
writeln('expected ',10358279142952140800.0);
failed:=true;
end;
result_val := gets32bit;
if trunc(result_val) <> RESULT_S32BIT then
failed:=true;
result_val := getu32bit;
if trunc(result_val) <> RESULT_U32BIT then
failed:=true;
result_val := getu8bit;
if trunc(result_val) <> RESULT_u8BIT then
failed:=true;
result_val := gets8bit;
if trunc(result_val) <> RESULT_s8BIT then
failed:=true;
result_val := gets16bit;
if trunc(result_val) <> RESULT_S16BIT then
failed:=true;
result_val := getu16bit;
if trunc(result_val) <> RESULT_U16BIT then
failed:=true;
if failed then
fail
else
WriteLn('Passed!');
end.