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LIMITATIONS file for Gcal.
Here are all internal limitations of `gcal':
* Number of command line arguments
== INT_MAX / sizeof(char *)
* Number of month/year list elements given in the command line
== INT_MAX / sizeof(Ml_struct *)
* Number of response/resource/include files
== unlimited
* Number of response/resource/include file lines
== unlimited
* Number of nested include files (but operating system/compiler
limits this)
== INT_MAX / sizeof(File_struct *)
* Length of file names (inclusive `\0')
== INT_MAX
* Length of contents of environment variables (inclusive `\0')
== INT_MAX
* Length of a single highlighting sequence (inclusive `\0')
== INT_MAX
* Number of managed highlighting sequence pairs
== 2
* Bytesize of Termcap buffer
== 4096
* Number of characters in a string (inclusive `\0')
== INT_MAX
* Line length of response/resource/include files (inclusive `\0')
== INT_MAX
* Number of fixed dates
== INT_MAX / sizeof(char *)
* Number of `%?'... special texts in a resource file line
== unlimited
* Range of computations in `%?'... special texts of a resource file
line
== LONG_MIN...LONG_MAX
* Number of assignable date variables DVAR in each file nesting level
== 24
* Number of assignable text variables TVAR in each file nesting level
== 26
* Year range for computing calendar sheets
== 1...9999
* Year range for computing the Easter Sunday's date
== 30...9999
* Range of months given in the command line
== 1/1...12/9999 (== 9999*12 => 119,988 program cycles maximum)
* Maximum number of managed _external pager_ programs
== 3
* Maximum number of burned-in _eternal holiday_ dates
== 1280 if `HD_TOP20CC' is set, otherwise 8192
* Maximum number of clocktime cycle steps during a day for determing
dynamical Sun and Moon data and times
== 1440
* Maximum number of dynamical Sun and Moon data and times for
different locations that can be calculated for a definite clocktime
== more than 4.7e+17
* Maximum number of dynamical Sun and Moon data and times for
different locations that can be calculated for a whole day
== more than 6.7e+20
* Maximum number of dynamical Sun and Moon data and times for
different locations that can be calculated for a whole year
== more than 2.4e+23
* Maximum number of dynamical Sun and Moon data and times for
different locations that can be calculated for the year range
1...9999
== more than 2.4e+27
* Maximum number of different locations for which course angles and
air line distance values, respectively, can be calculated
== more than 2.8e+32
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