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8-8 Delphi Language Guide
Other standard routines
Other standard routines
The table below lists frequently used procedures and functions found in Borland
product libraries. This is not an exhaustive inventory of standard routines. For more
information about these and other routines, see the online Help.
Table 8.3 Other standard routines
Procedure or
function Description
Addr Returns a pointer to a specified object.
AllocMem Allocates a memory block and initializes each byte to zero.
ArcTan Calculates the arctangent of the given number.
Assert Raises an exception if the passed expression does not evaluate to true.
Assigned Tests for a nil (unassigned) pointer or procedural variable.
Beep Generates a standard beep.
Break Causes control to exit a for, while, or repeat statement.
ByteToCharIndex Returns the position of the character containing a specified byte in a string.
Chr Returns the character for a specified integer value.
Close Closes a file.
CompareMem Performs a binary comparison of two memory images.
CompareStr Compares strings case sensitively.
CompareText Compares strings by ordinal value and is not case sensitive.
Continue Returns control to the next iteration of for, while, or repeat statements.
Copy Returns a substring of a string or a segment of a dynamic array.
Cos Calculates the cosine of an angle.
CurrToStr Converts a currency variable to a string.
Date Returns the current date.
DateTimeToStr Converts a variable of type TDateTime to a string.
DateToStr Converts a variable of type TDateTime to a string.
Dec Decrements an ordinal variable or a typed pointer variable.
Dispose Releases dynamically allocated variable memory.
ExceptAddr Returns the address at which the current exception was raised.
Exit Exits from the current procedure.
Exp Calculates the exponential of X.
FillChar Fills contiguous bytes with a specified value.
Finalize Uninitializes a dynamically allocated variable.
FloatToStr Converts a floating point value to a string.
FloatToStrF Converts a floating point value to a string, using specified format.
FmtLoadStr Returns formatted output using a resourced format string.
FmtStr Assembles a formatted string from a series of arrays.
Format Assembles a string from a format string and a series of arrays.
FormatDateTime Formats a date-and-time value.