Quick start manual

Standard routines and I/O 8-9
Other standard routines
FormatFloat Formats a floating point value.
FreeMem Releases allocated memory.
GetMem Allocates dynamic memory and a pointer to the address of the block.
Halt Initiates abnormal termination of a program.
Hi Returns the high-order byte of an expression as an unsigned value.
High Returns the highest value in the range of a type, array, or string.
Inc Increments an ordinal variable or a typed pointer variable.
Initialize Initializes a dynamically allocated variable.
Insert Inserts a substring at a specified point in a string.
Int Returns the integer part of a real number.
IntToStr Converts an integer to a string.
Length Returns the length of a string or array.
Lo Returns the low-order byte of an expression as an unsigned value.
Low Returns the lowest value in the range of a type, array, or string.
LowerCase Converts an ASCII string to lowercase.
MaxIntValue Returns the largest signed value in an integer array.
MaxValue Returns the largest signed value in an array.
MinIntValue Returns the smallest signed value in an integer array.
MinValue Returns smallest signed value in an array.
New Creates a dynamic allocated variable memory and references it with a
specified pointer.
Now Returns the current date and time.
Ord Returns the ordinal integer value of an ordinal-type expression.
Pos Returns the index of the first single-byte character of a specified substring
in a string.
Pred Returns the predecessor of an ordinal value.
Ptr Converts a value to a pointer.
Random Generates random numbers within a specified range.
ReallocMem Reallocates a dynamically allocatable memory.
Round Returns the value of a real rounded to the nearest whole number.
SetLength Sets the dynamic length of a string variable or array.
SetString Sets the contents and length of the given string.
ShowException Displays an exception message with its address.
ShowMessage Displays a message box with an unformatted string and an OK button.
ShowMessageFmt Displays a message box with a formatted string and an OK button.
Sin Returns the sine of an angle in radians.
SizeOf Returns the number of bytes occupied by a variable or type.
Sqr Returns the square of a number.
Sqrt Returns the square root of a number.
Str Converts an integer or real number into a string.
Table 8.3 Other standard routines (continued)
Procedure or
function Description