version 1.28, 2003/01/25 20:11:30
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version 1.33, 2004/05/08 17:14:30
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\ miscelleneous words |
\ miscelleneous words |
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\ Copyright (C) 1996,1997,1998,2000 Free Software Foundation, Inc. |
\ Copyright (C) 1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 106 AUser CSP
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Line 106 AUser CSP
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POSTPONE (const-does>) |
POSTPONE (const-does>) |
POSTPONE ; |
POSTPONE ; |
noname : POSTPONE rdrop |
noname : POSTPONE rdrop |
lastxt r> cell+ ! \ patch the literal |
latestxt r> cell+ ! \ patch the literal |
; immediate |
; immediate |
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\ !! rewrite slurp-file using slurp-fid |
\ !! rewrite slurp-file using slurp-fid |
Line 210 AUser CSP
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Line 210 AUser CSP
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endif |
endif |
1 max ur min ; |
1 max ur min ; |
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: f>buf-rdp ( rf c-addr +nr nd np -- ) \ gforth |
: f>buf-rdp ( rf c-addr +nr +nd +np -- ) \ gforth |
\G Convert @i{rf} into a string at @i{c-addr nr}. The conversion |
\G Convert @i{rf} into a string at @i{c-addr nr}. The conversion |
\G rules and the meanings of @i{nr nd np} are the same as for |
\G rules and the meanings of @i{nr nd np} are the same as for |
\G @code{f.rdp}. |
\G @code{f.rdp}. |
Line 236 AUser CSP
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Line 236 AUser CSP
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: f.rdp ( rf +nr +nd +np -- ) \ gforth |
: f.rdp ( rf +nr +nd +np -- ) \ gforth |
\G Print float @i{rf} formatted. The total width of the output is |
\G Print float @i{rf} formatted. The total width of the output is |
\G @i{nr}, the number of digits after the decimal point is @i{+nd}, |
\G @i{nr}. For fixed-point notation, the number of digits after the |
\G the minimum number of significant digits for fixed-point notation |
\G decimal point is @i{+nd} and the minimum number of significant |
\G is @i{np}. @code{Set-precision} has no effect on @code{f.rdp}. |
\G digits is @i{np}. @code{Set-precision} has no effect on |
\G Fixed-point notation is used if the number of siginicant digits |
\G @code{f.rdp}. Fixed-point notation is used if the number of |
\G would be larger than @i{np} and if the number of digits before the |
\G siginicant digits would be at least @i{np} and if the number of |
\G decimal point would fit. If fixed-point notation is not used, |
\G digits before the decimal point would fit. If fixed-point notation |
\G exponential notation is used, and if that does not fit, asterisks |
\G is not used, exponential notation is used, and if that does not |
\G are printed. We recommend using @i{nr}>=7 to avoid the risk of |
\G fit, asterisks are printed. We recommend using @i{nr}>=7 to avoid |
\G numbers not fitting at all. We recommend @i{nr}>=@i{np}+5 to avoid |
\G the risk of numbers not fitting at all. We recommend |
\G cases where @code{f.rdp} switches to exponential notation because |
\G @i{nr}>=@i{np}+5 to avoid cases where @code{f.rdp} switches to |
\G fixed-point notation would have too few significant digits, yet |
\G exponential notation because fixed-point notation would have too |
\G exponential notation offers fewer significant digits. We recomment |
\G few significant digits, yet exponential notation offers fewer |
\G @i{nr}>=@i{nd}+2, if you want to have fixed-point notation for some |
\G significant digits. We recommend @i{nr}>=@i{nd}+2, if you want to |
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\G have fixed-point notation for some numbers. We recommend |
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\G @i{np}>@i{nr}, if you want to have exponential notation for all |
\G numbers. |
\G numbers. |
f>str-rdp type ; |
f>str-rdp type ; |
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Line 273 AUser CSP
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Line 275 AUser CSP
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10e f* |
10e f* |
loop ; |
loop ; |
[then] |
[then] |
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: f.s ( -- ) \ gforth f-dot-s |
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\G Display the number of items on the floating-point stack, |
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\G followed by a list of the items; TOS is the right-most item. |
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." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
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?DO dup i - 1- floats fp@ + f@ 16 5 11 f.rdp space LOOP drop ; |