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/* * The contents of this file are subject to the Interbase Public * License Version 1.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy * of the License at http://www.Inprise.com/IPL.html * * Software distributed under the License is distributed on an * "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express * or implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code was created by Inprise Corporation * and its predecessors. Portions created by Inprise Corporation are * Copyright (C) Inprise Corporation. * * All Rights Reserved. * Contributor(s): ______________________________________. * Revision 1.2 2000/11/28 06:47:52 fsg * Changed declaration of ascii_char in ib_udf.sql * to get correct result as proposed by Claudio Valderrama * 2001.5.19 Claudio Valderrama, add the declaration of alternative * substrlen function to handle string,start,length instead. * 2004.9.1 Claudio Valderrama, changed some UDF's to be able to detect NULL * and renamed the resulting file as ib_udf2.sql. * */ /***************************************** * * a b s * ***************************************** * * Functional description: * Returns the absolute value of a * number. * ***************************************** DECLARE EXTERNAL FUNCTION abs DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_abs' MODULE_NAME 'ib_udf'; */ /***************************************** * * a c o s * ***************************************** * * Functional description: * Returns the arccosine of a number * between -1 and 1, if the number is * out of bounds it returns NaN, as handled * by the _matherr routine. * ***************************************** DECLARE EXTERNAL FUNCTION acos DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_acos' MODULE_NAME 'ib_udf'; */ /***************************************** * * a s c i i _ c h a r * ***************************************** * * Functional description: * Returns the ASCII character corresponding * with the value passed in. * ***************************************** DECLARE EXTERNAL FUNCTION ascii_char INTEGER NULL RETURNS CSTRING(1) FREE_IT ENTRY_POINT 'IB_UDF_ascii_char' MODULE_NAME 'ib_udf'; */ /***************************************** * * a s c i i _ v a l * ***************************************** * * Functional description: * Returns the ascii value of the character * passed in. * ***************************************** DECLARE EXTERNAL FUNCTION ascii_val CHAR(1) RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_ascii_val' MODULE_NAME 'ib_udf'; */ /***************************************** * * a s i n * ***************************************** * * Functional description: * Returns the arcsin of a number between * -1 and 1, if the number is out of * range NaN is returned. * ***************************************** DECLARE EXTERNAL FUNCTION asin DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_asin' MODULE_NAME 'ib_udf'; */ /***************************************** * * a t a n * ***************************************** * * Functional description: * Returns the arctangent of a number. * * ***************************************** DECLARE EXTERNAL FUNCTION atan DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_atan' MODULE_NAME 'ib_udf'; */ /***************************************** * * a t a n 2 * ***************************************** * * Functional description: * Returns the arctangent of the * first param / the second param. * ***************************************** DECLARE EXTERNAL FUNCTION atan2 DOUBLE PRECISION, DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_atan2' MODULE_NAME 'ib_udf'; */ /***************************************** * * b i n _ a n d * ***************************************** * * Functional description: * Returns the result of a binary AND * operation performed on the two numbers. * ***************************************** DECLARE EXTERNAL FUNCTION bin_and INTEGER, INTEGER RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_bin_and' MODULE_NAME 'ib_udf'; */ /***************************************** * * b i n _ o r * ***************************************** * * Functional description: * Returns the result of a binary OR * operation performed on the two numbers. * ***************************************** DECLARE EXTERNAL FUNCTION bin_or INTEGER, INTEGER RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_bin_or' MODULE_NAME 'ib_udf'; */ /***************************************** * * b i n _ x o r * ***************************************** * * Functional description: * Returns the result of a binary XOR * operation performed on the two numbers. * ***************************************** DECLARE EXTERNAL FUNCTION bin_xor INTEGER, INTEGER RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_bin_xor' MODULE_NAME 'ib_udf'; */ /***************************************** * * c e i l i n g * ***************************************** * * Functional description: * Returns a double value representing * the smallest integer that is greater * than or equal to the input value. * ***************************************** DECLARE EXTERNAL FUNCTION ceiling DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_ceiling' MODULE_NAME 'ib_udf'; */ /***************************************** * * c o s * ***************************************** * * Functional description: * The cos function returns the cosine * of x. If x is greater than or equal * to 263, or less than or equal to -263, * a loss of significance in the result * of a call to cos occurs, in which case * the function generates a _TLOSS error * and returns an indefinite (same as a * quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION cos DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_cos' MODULE_NAME 'ib_udf'; */ /***************************************** * * c o s h * ***************************************** * * Functional description: * The cosh function returns the hyperbolic cosine * of x. If x is greater than or equal * to 263, or less than or equal to -263, * a loss of significance in the result * of a call to cos occurs, in which case * the function generates a _TLOSS error * and returns an indefinite (same as a * quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION cosh DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_cosh' MODULE_NAME 'ib_udf'; */ /***************************************** * * c o t * ***************************************** * * Functional description: * Returns 1 over the tangent of the * input parameter. * ***************************************** DECLARE EXTERNAL FUNCTION cot DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_cot' MODULE_NAME 'ib_udf'; */ /***************************************** * * d i v * ***************************************** * * Functional description: * Returns the quotient part of the division * of the two input parameters. * *****************************************/ DECLARE EXTERNAL FUNCTION div INTEGER, INTEGER RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_div' MODULE_NAME 'ib_udf'; /***************************************** * * f l o o r * ***************************************** * * Functional description: * Returns a floating-point value * representing the largest integer that * is less than or equal to x. * ***************************************** DECLARE EXTERNAL FUNCTION floor DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_floor' MODULE_NAME 'ib_udf'; */ /***************************************** * * u d f _ f r a c * ***************************************** * * Functional description: * Returns a floating-point value * representing the fractional part of x. * *****************************************/ DECLARE EXTERNAL FUNCTION udf_frac DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_frac' MODULE_NAME 'ib_udf'; /***************************************** * * l n * ***************************************** * * Functional description: * Returns the natural log of a number. * ***************************************** DECLARE EXTERNAL FUNCTION ln DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_ln' MODULE_NAME 'ib_udf'; */ /***************************************** * * l o g * ***************************************** * * Functional description: * log (x,y) returns the logarithm * base x of y. * ***************************************** DECLARE EXTERNAL FUNCTION log DOUBLE PRECISION, DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_log' MODULE_NAME 'ib_udf'; */ /***************************************** * * l o g 1 0 * ***************************************** * * Functional description: * Returns the logarithm base 10 of the * input parameter. * ***************************************** DECLARE EXTERNAL FUNCTION log10 DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_log10' MODULE_NAME 'ib_udf'; */ /***************************************** * * l o w e r * ***************************************** * * Functional description: * Returns the input string into lower * case characters. Note: This function * will not work with international and * non-ascii characters. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * ***************************************** DECLARE EXTERNAL FUNCTION "LOWER" CSTRING(255) NULL RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_lower' MODULE_NAME 'ib_udf'; */ /***************************************** * * l p a d * ***************************************** * * Functional description: * Appends the given character to beginning * of the input string until length of the result * string becomes equal to the given number. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * ***************************************** DECLARE EXTERNAL FUNCTION lpad CSTRING(255) NULL, INTEGER, CSTRING(1) NULL RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_lpad' MODULE_NAME 'ib_udf'; */ /***************************************** * * l t r i m * ***************************************** * * Functional description: * Removes leading spaces from the input * string. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * *****************************************/ DECLARE EXTERNAL FUNCTION ltrim CSTRING(255) NULL RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_ltrim' MODULE_NAME 'ib_udf'; /***************************************** * * m o d * ***************************************** * * Functional description: * Returns the remainder part of the * division of the two input parameters. * ***************************************** DECLARE EXTERNAL FUNCTION mod INTEGER, INTEGER RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_mod' MODULE_NAME 'ib_udf'; */ /***************************************** * * p i * ***************************************** * * Functional description: * Returns the value of pi = 3.1459... * ***************************************** DECLARE EXTERNAL FUNCTION pi RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_pi' MODULE_NAME 'ib_udf'; */ /***************************************** * * r a n d * ***************************************** * * Functional description: * Returns a random number between 0 * and 1. * * * Note: Use srand to seed the * random number generator. * This behavior has been changed. ***************************************** DECLARE EXTERNAL FUNCTION rand RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_rand' MODULE_NAME 'ib_udf'; */ /***************************************** * * r p a d * ***************************************** * * Functional description: * Appends the given character to end * of the input string until length of the result * string becomes equal to the given number. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * ***************************************** DECLARE EXTERNAL FUNCTION rpad CSTRING(255) NULL, INTEGER, CSTRING(1) NULL RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_rpad' MODULE_NAME 'ib_udf'; */ /***************************************** * * r t r i m * ***************************************** * * Functional description: * Removes trailing spaces from the input * string. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * *****************************************/ DECLARE EXTERNAL FUNCTION rtrim CSTRING(255) NULL RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_rtrim' MODULE_NAME 'ib_udf'; /***************************************** * * s i g n * ***************************************** * * Functional description: * Returns 1, 0, or -1 depending on whether * the input value is positive, zero or * negative, respectively. * ***************************************** DECLARE EXTERNAL FUNCTION sign DOUBLE PRECISION RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_sign' MODULE_NAME 'ib_udf'; */ /***************************************** * * s i n * ***************************************** * * Functional description: * Returns the sine of x. If x is greater * than or equal to 263, or less than or * equal to -263, a loss of significance * in the result occurs, in which case the * function generates a _TLOSS error and * returns an indefinite (same as a quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION sin DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_sin' MODULE_NAME 'ib_udf'; */ /***************************************** * * s i n h * ***************************************** * * Functional description: * Returns the hyperbolic sine of x. If x is greater * than or equal to 263, or less than or * equal to -263, a loss of significance * in the result occurs, in which case the * function generates a _TLOSS error and * returns an indefinite (same as a quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION sinh DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_sinh' MODULE_NAME 'ib_udf'; */ /***************************************** * * s q r t * ***************************************** * * Functional description: * Returns the square root of a number. * ***************************************** DECLARE EXTERNAL FUNCTION sqrt DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_sqrt' MODULE_NAME 'ib_udf'; */ /***************************************** * * s r a n d * ***************************************** * * Functional description: * Returns a random number between 0 * and 1. Note the random number * generator is seeded using the current * time. * *****************************************/ DECLARE EXTERNAL FUNCTION srand RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_srand' MODULE_NAME 'ib_udf'; /***************************************** * * s u b s t r * ***************************************** * * Functional description: * substr(s,m,n) returns the substring * of s which starts at position m and * ending at position n. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * Change by Claudio Valderrama: when n>length(s), * the result will be the original string instead * of NULL as it was originally designed. * *****************************************/ DECLARE EXTERNAL FUNCTION substr CSTRING(255) NULL, SMALLINT, SMALLINT RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_substr' MODULE_NAME 'ib_udf'; /***************************************** * * s u b s t r l e n * ***************************************** * * Functional description: * substrlen(s,i,l) returns the substring * of s which starts at position i and * ends at position i+l-1, being l the length. * Note: This function is NOT limited to * receiving and returning only 255 characters, * rather, it can use as long as 32767 * characters which is the limit on an * INTERBASE character string. * *****************************************/ DECLARE EXTERNAL FUNCTION substrlen CSTRING(255) NULL, SMALLINT, SMALLINT RETURNS CSTRING(255) FREE_IT ENTRY_POINT 'IB_UDF_substrlen' MODULE_NAME 'ib_udf'; /***************************************** * * s t r l e n * ***************************************** * * Functional description: * Returns the length of a given string. * *****************************************/ DECLARE EXTERNAL FUNCTION strlen CSTRING(32767) CHARACTER SET NONE RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_strlen' MODULE_NAME 'ib_udf'; /***************************************** * * t a n * ***************************************** * * Functional description: * Returns the tangent of x. If x is * greater than or equal to 263, or less * than or equal to -263, a loss of * significance in the result occurs, in * which case the function generates a * _TLOSS error and returns an indefinite * (same as a quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION tan DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_tan' MODULE_NAME 'ib_udf'; */ /***************************************** * * t a n h * ***************************************** * * Functional description: * Returns the tangent of x. If x is * greater than or equal to 263, or less * than or equal to -263, a loss of * significance in the result occurs, in * which case the function generates a * _TLOSS error and returns an indefinite * (same as a quiet NaN). * ***************************************** DECLARE EXTERNAL FUNCTION tanh DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_tanh' MODULE_NAME 'ib_udf'; */