ISO Pascal reference manual

*Execution error -- reset on non-existent file --
Appendix C
This message is the result of calling RESET on a file which does not exist.
The most common cause is declaring a file variable and applying reset to it
before anything has been sent to it.
PROGRAM error(output);
VAR f : text;
BEGIN
END.
reset(f); (it doesn't exist yet}
writeln('Error not detected');
*Execution error -- rewrite fails --
This message is issued when the host operating system cannot open a file for
output. One of the more common causes of this is an attempt to open more
files at once than is permitted. < reason > should be an explanatory
message from the operating system.
*Execution error -- no association for
This message is generated when an attempt is made to execute a program
without specifying the actual file to be used when the program parameter
< name > is referenced.
*Execution error -- RESET required before read access
This error is caused by an attempt to read from an output file. Before the
data in an output file may be accessed the file must be made an input file by
calling the procedure RESET.
PROGRAM error(output);
VAR f : text;
BEGIN
END.
c : char;
rewrite(f); {it's an output file}
read(f, c); (wrong}
Pascal Issue 1 109