Character codes: Difference between revisions
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m (→[[Character code#ALGOL 68]]: character conversion routines) |
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printf(($gl$, REPR 97)) # for ASCII this prints "a"; EBCDIC prints "/" # |
printf(($gl$, REPR 97)) # for ASCII this prints "a"; EBCDIC prints "/" # |
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''Character conversions'' may be available in the ''standard preclude'' so that when |
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a foreign tape is mounted, the characters will be converted transparently as the tape's |
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records are read. |
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FILE tape; |
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INT errno = open(tape, "/dev/tape1", stand out channel) |
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make conv(tape, ebcdic conv); |
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FOR record DO getf(tape, ( ~ )) OD; ~ # etc ... # |
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Every CHANNEL has an associated standard character conversion that can be determined |
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using the ''stand conv'' query routine and then the conversion applied to a particular |
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file/tape. eg. |
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make conv(tape, stand conv(stand out channel)) |
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=={{header|C}}== |
=={{header|C}}== |
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<code>char</code> is already an integer type in C, and it gets automatically promoted to <code>int</code>. So you can use a character where you would otherwise use an integer. Conversely, you can use an integer where you would normally use a character, except you may need to cast it, as <code>char</code> is smaller. |
<code>char</code> is already an integer type in C, and it gets automatically promoted to <code>int</code>. So you can use a character where you would otherwise use an integer. Conversely, you can use an integer where you would normally use a character, except you may need to cast it, as <code>char</code> is smaller. |
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