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Allow 't', 'T', and even/odd ASCII characters to denote true/false

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rather than just 't' and 'T'.  This allows yes/no and 1/0
 to be interpreted as one might expect.
Clean up function declarations to use bool as the type for arguments
 and return values.
This commit is contained in:
Thomas G. Lockhart 1997-10-09 05:06:12 +00:00
parent 8fe55efd7b
commit a21c3e353a
1 changed files with 11 additions and 8 deletions
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17
src/backend/utils/adt/bool.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/bool.c,v 1.6 1997/09/08 02:30:26 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/bool.c,v 1.7 1997/10/09 05:06:12 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -23,20 +23,23 @@
/* /*
* boolin - converts "t" or "f" to 1 or 0 * boolin - converts "t" or "f" to 1 or 0
*
* Check explicitly for "true/TRUE" and allow any odd ASCII value to be "true".
* This handles "true/false", "yes/no", "1/0". - thomas 1997-10-05
*/ */
bool bool
boolin(char *b) boolin(char *b)
{ {
if (b == NULL) if (b == NULL)
elog(WARN, "Bad input string for type bool"); elog(WARN, "Bad input string for type bool");
return ((bool) (*b == 't') || (*b == 'T')); return ((bool) (((*b) == 't') || ((*b) == 'T') || ((*b) & 1)));
} }
/* /*
* boolout - converts 1 or 0 to "t" or "f" * boolout - converts 1 or 0 to "t" or "f"
*/ */
char * char *
boolout(long b) boolout(bool b)
{ {
char *result = (char *) palloc(2); char *result = (char *) palloc(2);
@ -50,25 +53,25 @@ boolout(long b)
*****************************************************************************/ *****************************************************************************/
bool bool
booleq(int8 arg1, int8 arg2) booleq(bool arg1, bool arg2)
{ {
return (arg1 == arg2); return (arg1 == arg2);
} }
bool bool
boolne(int8 arg1, int8 arg2) boolne(bool arg1, bool arg2)
{ {
return (arg1 != arg2); return (arg1 != arg2);
} }
bool bool
boollt(int8 arg1, int8 arg2) boollt(bool arg1, bool arg2)
{ {
return (arg1 < arg2); return (arg1 < arg2);
} }
bool bool
boolgt(int8 arg1, int8 arg2) boolgt(bool arg1, bool arg2)
{ {
return (arg1 > arg2); return (arg1 > arg2);
} }