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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Literals-Integer/REXX/literals-integer.rexx Normal file
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/*REXX pgm displays an integer (expressed in the pgm as a literal) in different bases*/
/*────────── expressing decimal numbers ──────────*/
ddd = 123 /*a decimal number (expressed as a literal). */
ddd = '123' /*this is exactly the same as above. */
ddd = "123" /*this is exactly the same as above also. */
/*────────── expressing hexadecimal numbers ──────*/
hhh = '7b'x /*a value, expressed as a hexadecimal literal. */
hhh = '7B'x /* (same as above) using a capital "B". */
hhh = '7B'X /* (same as above) using a capital "X". */
cow = 'dead beef'x /*another value, with a blank for the eyeballs.*/
cow = 'de ad be ef'x /* (same as above) with blanks for the eyeballs.*/
/*────────── expressing binary numbers ───────────*/
bbb = '1111011'b /*a value, expressed as a binary literal. */
bbb = '01111011'b /* (same as above) with a full 8 binary digits. */
bbb = '0111 1011'b /* (same as above) with a blank for the eyeballs.*/
say ' base 10=' ddd
say ' base 2=' x2b( d2x( ddd ) )
say ' base 16=' d2x( ddd )
say ' base 256=' d2c( ddd ) /*the output displayed is ASCII (or maybe EBCDIC).*/
thingy1= +123 /*╔══════════════════════════════════════════════╗*/
thingy2= '+123' /*║ All of the THINGYs variables aren't strictly ║*/
thingy3= ' 123' /*║ (exactly) equal to the DDD variable, but ║*/
thingy4= 123. /*║ they do compare numerically equal. When ║*/
thingy5= 12.3e+1 /*║ compared numerically, numbers are rounded to ║*/
thingy6= 1230e-1 /*║ the current setting of NUMERIC DIGITS. The ║*/
thingy7= 1230E-0001 /*║ default for (decimal) NUMERIC DIGITS is 9 ║*/
thingy8= ' + 123 ' /*╚══════════════════════════════════════════════╝*/
/*stick a fork in it, we're all done. */