diff options
| author | Marc G. Fournier | 1996-07-09 06:22:35 +0000 |
|---|---|---|
| committer | Marc G. Fournier | 1996-07-09 06:22:35 +0000 |
| commit | 24a952fe4a27c6c66dc46ee3b2d860755fe063e1 (patch) | |
| tree | 9c669cd24c4dbcf57f03c278f3169dcb971a2151 /src/backend/tioga/Varray.c | |
Postgres95 1.01 Distribution - Virgin SourcesPG95_DIST
Diffstat (limited to 'src/backend/tioga/Varray.c')
| -rw-r--r-- | src/backend/tioga/Varray.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/backend/tioga/Varray.c b/src/backend/tioga/Varray.c new file mode 100644 index 0000000000..3ed45c6656 --- /dev/null +++ b/src/backend/tioga/Varray.c @@ -0,0 +1,48 @@ +/* ************************************************************************ + * + * Varray.c -- + * + * routines to provide a generic set of functions to handle variable sized + * arrays. originally by Jiang Wu + * ************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include "Varray.h" + +Varray *NewVarray(size_t nobj, size_t size) +/* + * NewVarray -- allocate a Varray to contain an array of val each of which + * is size valSize. Returns the Varray if successful, + * returns NULL otherwise. + */ +{ + Varray *result; + + if (nobj == 0) + nobj = VARRAY_INITIAL_SIZE; + result = (Varray *) malloc(sizeof(Varray)); + result->val = (void *) calloc(nobj, size); + if (result == NULL) + return NULL; + result->size = size; + result->nobj = 0; + result->maxObj = nobj; + return result; +} + +int AppendVarray(Varray *array, void *value, CopyingFunct copy) +/* + * AppendVarray -- append value to the end of array. This function + * returns the size of the array after the addition of + * the new element. + */ +{ + copy(value, VARRAY_NTH(array->val, array->size, array->nobj)); + array->nobj++; + if (array->nobj >= array->maxObj) { + ENLARGE_VARRAY(array, array->maxObj / 2); + } + return array->nobj; +} + |