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include <mach.h> # for SZB_CHAR
include "tbtables.h"
# tbzi2t -- convert integer column to text
# When reading a text table into memory, if non-numeric text is found in
# a column of type integer, this routine may be called to convert the
# data type to text.
#
# Phil Hodge, 7-Jun-1994 Subroutine created.
# Phil Hodge, 10-Aug-1994 Update COL_LEN.
procedure tbzi2t (tp, cp, width)
pointer tp # i: pointer to table descriptor
pointer cp # i: pointer to column descriptor
int width # i: the maximum width for this column
#--
pointer new # pointer to new memory for column data
int row # row number
int op # offset in new char array
errchk calloc
begin
# Allocate memory for the array of strings.
call calloc (new, (width+1) * TB_ALLROWS(tp), TY_CHAR)
op = 0 # initial value
# Copy each row.
do row = 1, TB_NROWS(tp) {
if (IS_INDEFI(Memi[COL_OFFSET(cp)+row-1])) {
Memc[new+op] = EOS
} else {
call sprintf (Memc[new+op], width, "%d")
call pargi (Memi[COL_OFFSET(cp) + row - 1])
}
op = op + width + 1 # add one for EOS
}
# Free the old memory, and save the new pointer.
call mfree (COL_OFFSET(cp), TY_INT)
COL_OFFSET(cp) = new
# Specify the new data type and width.
COL_DTYPE(cp) = -width
COL_LEN(cp) = (width + SZB_CHAR-1) / SZB_CHAR
end
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