\ test some gforth extension words
\ Copyright (C) 2003,2004,2005,2006,2007,2009,2011 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program. If not, see http://www.gnu.org/licenses/.
require ./tester.fs
decimal
\ f>str-rdp (then f.rdp and f>buf-rdb should also be ok)
{ 12.3456789e 7 3 1 f>str-rdp s" 12.346" str= -> true }
{ 12.3456789e 7 4 1 f>str-rdp s" 12.3457" str= -> true }
{ -12.3456789e 7 4 1 f>str-rdp s" -1.23E1" str= -> true }
{ 0.0996e 7 3 1 f>str-rdp s" 0.100" str= -> true }
{ 0.0996e 7 3 3 f>str-rdp s" 9.96E-2" str= -> true }
{ 999.9994e 7 3 1 f>str-rdp s" 999.999" str= -> true }
{ 999.9996e 7 3 1 f>str-rdp s" 1.000E3" str= -> true }
{ -1e-20 5 2 1 f>str-rdp s" *****" str= -> true }
\ 0x hex number conversion, or not
decimal
{ 0x10 -> 16 }
{ 0X10 -> 16 }
36 base !
{ 0x10 -> x10 }
decimal
{ 'a' -> 97 }
{ 'A -> 65 }
{ 1. '1 -> 1. 49 }
\ REPRESENT has no trailing 0s even for inf and nan
{ 1e 0e f/ pad 16 represent drop 2drop pad 15 + c@ '0 = -> false }
{ 0e 0e f/ pad 16 represent drop 2drop pad 15 + c@ '0 = -> false }
{ -1e 0e f/ pad 16 represent drop 2drop pad 15 + c@ '0 = -> false }
\ TRY and friends
: 0<-throw ( n -- )
0< throw ;
: try-test1 ( n1 -- n2 )
try
dup 0<-throw
iferror
2drop 25
then
1+
endtry ;
{ -5 try-test1 -> 26 }
{ 5 try-test1 -> 6 }
: try-test2 ( n1 -- n2 )
try
0
restore
drop 1+ dup 0<-throw
endtry ;
{ -5 try-test2 -> 0 }
{ 5 try-test2 -> 6 }
: try-test3 ( n1 -- n2 )
try
dup 0<-throw
endtry-iferror
2drop 10
else
1+
then ;
{ -5 try-test3 -> 10 }
{ 5 try-test3 -> 6 }
\ fcopysign
t{ 5e 1e fcopysign -> 5e }t
t{ -5e 1e fcopysign -> 5e }t
t{ 5e -1e fcopysign -> -5e }t
t{ -5e -1e fcopysign -> -5e }t
\ tests involving -0e?
\ ?of nextcase contof
: mysgn ( n1 -- n2 )
case
dup 0< ?of drop -1 endof
dup 0> ?of drop 1 endof
dup
endcase ;
t{ 5 mysgn -> 1 }
t{ -3 mysgn -> -1 }
t{ 0 mysgn -> 0 }
: myscan ( addr1 n1 char -- addr2 n2 )
>r case
dup 0= ?of endof
over c@ r@ = ?of endof
1 /string
dup nextcase
rdrop ;
t{ s" dhfa;jfsdk" 2dup ';' myscan 2swap 4 /string d= -> true }
t{ s" abcdef" 2dup 'g' myscan 2swap 6 /string d= -> true }
: gcd ( n1 n2 -- n )
case
2dup > ?of tuck - contof
2dup < ?of over - contof
endcase ;
t{ 48 42 gcd -> 6 }
t{ 42 48 gcd -> 6 }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>