<literal>result</literal>.
       The function returns 0 on success and -1 in case of error.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-mul">
     <term><function>PGTYPESnumeric_mul</function></term>
     <listitem>
      <para>
       Multiply two numeric variables and return the result in a third one.
<synopsis>
int PGTYPESnumeric_mul(numeric *var1, numeric *var2, numeric *result);
</synopsis>
       The function multiplies the variables <literal>var1</literal> and
       <literal>var2</literal>. The result of the operation is stored in the
       variable <literal>result</literal>.
       The function returns 0 on success and -1 in case of error.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-div">
     <term><function>PGTYPESnumeric_div</function></term>
     <listitem>
      <para>
       Divide two numeric variables and return the result in a third one.
<synopsis>
int PGTYPESnumeric_div(numeric *var1, numeric *var2, numeric *result);
</synopsis>
       The function divides the variables <literal>var1</literal> by
       <literal>var2</literal>. The result of the operation is stored in the
       variable <literal>result</literal>.
       The function returns 0 on success and -1 in case of error.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-cmp">
     <term><function>PGTYPESnumeric_cmp</function></term>
     <listitem>
      <para>
       Compare two numeric variables.
<synopsis>
int PGTYPESnumeric_cmp(numeric *var1, numeric *var2)
</synopsis>
       This function compares two numeric variables. In case of error,
       <literal>INT_MAX</literal> is returned. On success, the function
       returns one of three possible results:
       <itemizedlist>
        <listitem>
         <para>
          1, if <literal>var1</literal> is bigger than <literal>var2</literal>
         </para>
        </listitem>
        <listitem>
         <para>
          -1, if <literal>var1</literal> is smaller than <literal>var2</literal>
         </para>
        </listitem>
        <listitem>
         <para>
          0, if <literal>var1</literal> and <literal>var2</literal> are equal
         </para>
        </listitem>
       </itemizedlist>
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-from-int">
     <term><function>PGTYPESnumeric_from_int</function></term>
     <listitem>
      <para>
       Convert an int variable to a numeric variable.
<synopsis>
int PGTYPESnumeric_from_int(signed int int_val, numeric *var);
</synopsis>
       This function accepts a variable of type signed int and stores it
       in the numeric variable <literal>var</literal>. Upon success, 0 is returned and
       -1 in case of a failure.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-from-long">
     <term><function>PGTYPESnumeric_from_long</function></term>
     <listitem>
      <para>
       Convert a long int variable to a numeric variable.
<synopsis>
int PGTYPESnumeric_from_long(signed long int long_val, numeric *var);
</synopsis>
       This function accepts a variable of type signed long int and stores it
       in the numeric variable <literal>var</literal>. Upon success, 0 is returned and
       -1 in case of a failure.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry id="ecpg-pgtypes-numeric-copy">
     <term><function>PGTYPESnumeric_copy</function></term>
     <listitem>
      <para>
       Copy over one numeric variable into another one.
<synopsis>
int PGTYPESnumeric_copy(numeric *src, numeric *dst);
</synopsis>
       This function copies over the value of the variable that
       <literal>src</literal> points to into the variable that <literal>dst</literal>
       points to. It returns 0 on success and -1 if an error occurs.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry