eiffel, Eiffel and hexadecimal

Eiffel and hexadecimal

Author	Message
Silvio Caliss #1 / 3	Eiffel and hexadecimal I need to do some ASCII to EBCDIC character translation. In the table that I have states hexadecimal values. Searching in ETL, I cannot find any way to specify integral values using hexadecimal. E.g. something like: ... ... c : CHARACTER i : INTEGER ... c := '%/0xFF/' i := 0x12AB ... Do you have ideas to circumvent this missing (?) feature ? Thanks, Silvio
Sun, 14 Nov 1999 03:00:00 GMT

Roger Brown #2 / 3	Eiffel and hexadecimal Quote: Silvio Calissi writes: > I need to do some ASCII to EBCDIC character translation. In the table that > I have states hexadecimal values. > Searching in ETL, I cannot find any way to specify integral values using > hexadecimal. > E.g. something like: > ... > ... > c : CHARACTER > i : INTEGER > ... > c := '%/0xFF/' > i := 0x12AB > ... > Do you have ideas to circumvent this missing (?) feature ? If you are using TowerEiffel, you can write integral values in hex with a trailing X (e.g. "i := 12abX"). Otherwise, I think you just have to translate them by hand, or find an EBCDIC table that uses Decimal, or use a calculator that can convert decimal<->hex (e.g. the one that comes with Windows). Regards, Roger -- -- -- Roger Browne, 6 Bambers Walk, Wesham, PR4 3DG, UK \| Ph 01772-687525 -- Everything Eiffel: http://www.eiffel.demon.co.uk/ \| +44-1772-687525
Sun, 14 Nov 1999 03:00:00 GMT

Ulrich Win #3 / 3	Eiffel and hexadecimal Quote: > Silvio Calissi writes: > > I need to do some ASCII to EBCDIC character translation. In the table that > > I have states hexadecimal values. > > Searching in ETL, I cannot find any way to specify integral values using > > hexadecimal. > > E.g. something like: > > ... > > ... > > c : CHARACTER > > i : INTEGER > > ... > > c := '%/0xFF/' > > i := 0x12AB > > ... > > Do you have ideas to circumvent this missing (?) feature ? > If you are using TowerEiffel, you can write integral values in hex with > a trailing X (e.g. "i := 12abX"). > Otherwise, I think you just have to translate them by hand, or find an > EBCDIC table that uses Decimal, or use a calculator that can convert > decimal<->hex (e.g. the one that comes with Windows). What about a function that does the conversion (to_hex(hex : STRING): INTEGER) that is used inside a once-routine to return the needed conversion table? Yes, slow and long, but portable and clean. I solved the problem using an external C function... Ulrich
Tue, 16 Nov 1999 03:00:00 GMT

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