| Firebird Documentation Index → Firebird 2.1 Language Ref. Update → External functions (UDFs) → ascii_val |
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Library: ib_udf
Added in: IB
Better alternative: Internal function ASCII_VAL()
Description: Returns the ASCII code of the character passed in.
Result type: INTEGER
Syntax:
ascii_val (ch)
Declaration:
DECLARE EXTERNAL FUNCTION ascii_val CHAR(1) RETURNS INTEGER BY VALUE ENTRY_POINT 'IB_UDF_ascii_val' MODULE_NAME 'ib_udf'
Because CHAR fields are padded with spaces, an empty string argument will be seen as a space, and yield a result of 32. The internal function ASCII_VAL returns 0 in this case.
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| Firebird Documentation Index → Firebird 2.1 Language Ref. Update → External functions (UDFs) → ascii_val |