[fpc-pascal] Problem with softfloat in fpc for ARM using negative number
josepascual
josepascual at almudi.com
Wed Jul 4 14:01:00 CEST 2007
Hi
When I run next floattest program
program floattest;
uses sysutils;
var a,b,c:double;
begin
a:=0.5;
b:=0.3;
writeln(format('%5.3f',[a*b]));
a:=-0.5;
c:=a*b;
writeln(format('%5.3f',[c]));
end.
I received this output:
===================== output =================================
0.150
An unhandled exception occurred at $0000D550 :
EOverflow : Floating point overflow
$0000D550 FLOAT_RAISE, line 111 of /opt/fpc/svn/fpc/rtl/inc/genmath.inc
$0000B728 float64_mul, line 4389 of /opt/fpc/svn/fpc/rtl/inc/softfpu.pp
$0000E590 STR_REAL, line 361 of /opt/fpc/svn/fpc/rtl/inc/real2str.inc
$00010EB0 fpc_ansistr_float, line 891 of
/opt/fpc/svn/fpc/rtl/inc/astrings.inc
$0001B89C FLOATTOSTRFINTL, line 1249 of
/opt/fpc/svn/fpc/rtl/objpas/sysutils/sysstr.inc
$0001C4A4 FLOATTOSTRF, line 1505 of
/opt/fpc/svn/fpc/rtl/objpas/sysutils/sysstr.inc
$0001A078 FORMAT, line 250 of
/opt/fpc/svn/fpc/rtl/objpas/sysutils/sysformt.inc
$0001B030 FORMAT, line 895 of
/opt/fpc/svn/fpc/rtl/objpas/sysutils/sysstr.inc
$000081E8 main, line 13 of floattest.pas
===================== output =================================
if I change from double to single I obtain the same output, Is single
implemented as double?
Jose Pascual
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