guessextdir(3alc)

1GUESSEXTDIR(3)           MBK LOGICAL UTILITY FUNCTIONS          GUESSEXTDIR(3)
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NAME

6       guessextdir  -  guess external connectors directions from internal con‐
7       nectors directions
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SYNOPSIS

10       #include "mlo.h"
11       int guessextdir(ptfig)
12       lofig_list ∗ptfig;
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PARAMETER

15       ptfig               Pointer to a lofig_list
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DESCRIPTION

18       The guessextdir function guesses external  connectors  directions  from
19       internal  connectors'  ones.  The translation table below indicates the
20       resulting direction for two internals connectors.
21                IN      OUT      INOUT  UNKNOWN  TRISTATE TRANSCV
22       IN       IN      INOUT    INOUT  IN       TRANSCV  TRANSCV
23       OUT      INOUT   OUT+     INOUT+ OUT      OUT+     TRANSCV+
24       INOUT    INOUT   INOUT+   INOUT+ INOUT    INOUT+   INOUT+
25       UNKNOWN  IN      OUT      INOUT  UNKNOWN  TRISTATE TRANSCV
26       TRISTATE TRANSCV OUT+     INOUT+ TRISTATE TRISTATE TRANSCV
27       TRANSCV  TRANSCV TRANSCV+ INOUT+ TRANSCV  TRANSCV  TRANSCV
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RETURN VALUE

30       guessextdir returns 1 on success, 0 if there is an error in the  trans‐
31       lation.
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ERROR

34       The  values followed by a + character in the translation table indicate
35       an error.
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EXAMPLE

38       #include "mut.h"
39       #include "mlo.h"
40       lofig_list ∗ getgoodlofig(figname, mode)
41       char ∗figname;
42       char mode;
43       {
44       lofig_list ∗ptfig;
45          ptfig = getlofig(figname, mode);
46          restorealldir(ptfig);
47          guessextdir(ptfig);
48          return ptfig;
49       }
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