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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-30 21:21:56 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-30 21:21:56 +0000 |
| commit | 5725b9d9afc8c3ba24e94cbc7020889fe8ad7ef9 (patch) | |
| tree | e1c8a77dbb660fa0de36528f19dc4f3cb81829d2 /src/backend/utils/adt/arrayutils.c | |
| parent | 24b1f14eae0b83ef5d6b269ebf1ecae2f3acbb8c (diff) | |
| download | postgresql-5725b9d9afc8c3ba24e94cbc7020889fe8ad7ef9.tar.gz postgresql-5725b9d9afc8c3ba24e94cbc7020889fe8ad7ef9.zip | |
Support type modifiers for user-defined types, and pull most knowledge
about typmod representation for standard types out into type-specific
typmod I/O functions. Teodor Sigaev, with some editorialization by
Tom Lane.
Diffstat (limited to 'src/backend/utils/adt/arrayutils.c')
| -rw-r--r-- | src/backend/utils/adt/arrayutils.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/backend/utils/adt/arrayutils.c b/src/backend/utils/adt/arrayutils.c index 2a732ad63bb..2913d0a1d8b 100644 --- a/src/backend/utils/adt/arrayutils.c +++ b/src/backend/utils/adt/arrayutils.c @@ -8,13 +8,14 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/arrayutils.c,v 1.21 2006/03/05 15:58:41 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/arrayutils.c,v 1.22 2006/12/30 21:21:54 tgl Exp $ * *------------------------------------------------------------------------- */ #include "postgres.h" +#include "catalog/pg_type.h" #include "utils/array.h" #include "utils/memutils.h" @@ -188,3 +189,30 @@ mda_next_tuple(int n, int *curr, const int *span) return -1; } + +/* + * ArrayGetTypmods: verify that argument is a 1-D integer array, + * return its length and a pointer to the first contained integer. + */ +int32 * +ArrayGetTypmods(ArrayType *arr, int *n) +{ + if (ARR_ELEMTYPE(arr) != INT4OID) + ereport(ERROR, + (errcode(ERRCODE_ARRAY_ELEMENT_ERROR), + errmsg("typmod array must be type integer[]"))); + + if (ARR_NDIM(arr) != 1) + ereport(ERROR, + (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR), + errmsg("typmod array must be one-dimensional"))); + + if (ARR_HASNULL(arr)) + ereport(ERROR, + (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), + errmsg("typmod array must not contain nulls"))); + + *n = ArrayGetNItems(ARR_NDIM(arr), ARR_DIMS(arr)); + + return (int32 *) ARR_DATA_PTR(arr); +} |