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FileSize(F) return~ the number of components in F. If the file is empty, FileSize(F) returns O. With {$I-}, IOResult returns 0 if the operation was successful; otherwise, it returns a nonzero error code. Restrictions Cannot be used on a text file. File must be open. See also FilePos Example var F: file of Byte; begin { Get file name from command line } Assign(F,ParamStr(l)) ; Reset (F) ; Writeln (' File size in bytes: ' FileSize (F) ) ; Close(F); end. FileSplit function Purpose Declaration Remarks WinDos Splits a file name into its three components.

Therefore, when compiling a program that uses Exec, be sure to reduce the maximum heap size using a $M compiler directive; otherwise, there won't be enough memory (DosError = 8). See also DosError, DosExitCode, SavelntXX, Swap Vectors Example {$M $4000,O,O} { 16K stack, no heap required or reserved } uses Dos; var ProgramName, CmdLine: String; begin Write('Program to Exec (include full path): '); Readln(ProgramName) ; write('Command line to pass to " ProgramName, ': '); Readln(CmdLine); writeln('About to Exec ...

See also Rename Example var F: file; Ch: Char; begin { Get file to delete from command line } Assign(F, ParamStr(l)); {$I-} Reset(F); {$It} if IOResult <> 0 then Writeln('Cannot find' ParamStr(l)) else begin Close (F) ; Write('Erase " ParamStr(l) , '? '); Readln (Ch) ; if UpCase(Ch) = 'Y' then Erase (F) ; end; end. Programmer's Reference ErrorAddr variable ErrorAddr variable Purpose Declaration Remarks System Contains the address of the statement causing a run-time error. var ErrorAddr: Pointer; If a program terminates normally or stops due to a call to Halt, ErrorAddr ~s nil.

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Turbo Pascal® version 7.0 programmer's reference

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