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Bảng mã lỗi của Free Pascal

1 Invalid function number
An invalid operating system call was attempted.
2 File not found
Reported when trying to erase, rename or open a non-existent file.

3 Path not found
Reported by the directory handling routines when a path does not exist or is
invalid. Also reported when trying to access a non-existent file.

4 Too many open files
The maximum number of currently opened files by your process has been reached.
Certain operating systems limit the number of files which can be opened
concurrently, and this error can occur when this limit has been reached.

5 File access denied
Permission accessing the file is denied. This error might be caused by several
Trying to open for writing a file which is read only, or which is actually a
File is currently locked or used by another process.
Trying to create a new file, or directory while a file or directory of the same
name already exists.
Trying to read from a file which was opened in write only mode.
Trying to write from a file which was opened in read only mode.
Trying to remove a directory or file while it is not possible.
No permission to access the file or directory.

6 Invalid file handle
If this happens, the file variable you are using is trashed; it indicates that
your memory is corrupted.

12 Invalid file access code
Reported when a reset or rewrite is called with an invalid FileMode value.

15 Invalid drive number
The number given to the Getdir or ChDir function specifies a non-existent disk.

16 Cannot remove current directory
Reported when trying to remove the currently active directory.

17 Cannot rename across drives
You cannot rename a file such that it would end up on another disk or

100 Disk read error
An error occurred when reading from disk. Typically when you try to read past
the end of a file.

101 Disk write error
Reported when the disk is full, and you’re trying to write to it.

102 File not assigned
This is reported by Reset, Rewrite, Append, Rename and Erase, if you call them
with an unassigned file as a parameter.

103 File not open
Reported by the following functions : Close, Read, Write, Seek, EOf, FilePos,
FileSize, Flush, BlockRead, and BlockWrite if the file is not open.

104 File not open for input
Reported by Read, BlockRead, Eof, Eoln, SeekEof or SeekEoln if the file is not
opened with Reset.

105 File not open for output
Reported by write if a text file isn’t opened with Rewrite.

106 Invalid numeric format
Reported when a non-numeric value is read from a text file, when a numeric
value was expected.

150 Disk is write-protected
(Critical error)

151 Bad drive request struct length
(Critical error)

152 Drive not ready
(Critical error)

154 CRC error in data
(Critical error)

156 Disk seek error
(Critical error)

157 Unknown media type
(Critical error)

158 Sector Not Found
(Critical error)

159 Printer out of paper
(Critical error)

160 Device write fault
(Critical error)

161 Device read fault
(Critical error)

162 Hardware failure
(Critical error)

200 Division by zero
The application attempted to divide a number by zero.

201 Range check error
If you compiled your program with range checking on, then you can get this
error in the following cases:
An array was accessed with an index outside its declared range.
Trying to assign a value to a variable outside its range (for instance an
enumerated type).

202 Stack overflow error
The stack has grown beyond its maximum size (in which case the size of local
variables should be reduced to avoid this error), or the stack has become
corrupt. This error is only reported when stack checking is enabled.

203 Heap overflow error
The heap has grown beyond its boundaries. This is caused when trying to
allocate memory exlicitly with New, GetMem or ReallocMem, or when a class or
object instance is created and no memory is left. Please note that, by default,
Free Pascal provides a growing heap, i.e. the heap will try to allocate more
memory if needed. However, if the heap has reached the maximum size allowed by
the operating system or hardware, then you will get this error.

204 Invalid pointer operation
This you will get if you call Dispose or Freemem with an invalid pointer
(notably, Nil)

205 Floating point overflow
You are trying to use or produce too large real numbers.

206 Floating point underflow
You are trying to use or produce too small real numbers.

207 Invalid floating point operation
Can occur if you try to calculate the square root or logarithm of a negative

210 Object not initialized
When compiled with range checking on, a program will report this error if you
call a virtual method without having called istr constructor.

211 Call to abstract method
Your program tried to execute an abstract virtual method. Abstract methods
should be overridden, and the overriding method should be called.

212 Stream registration error
This occurs when an invalid type is registered in the objects unit.

213 Collection index out of range
You are trying to access a collection item with an invalid index (objects

214 Collection overflow error
The collection has reached its maximal size, and you are trying to add another
element (objects unit).

215 Arithmetic overflow error
This error is reported when the result of an arithmetic operation is outside of
its supported range. Contrary to Turbo Pascal, this error is only reported for
32-bit or 64-bit arithmetic overflows. This is due to the fact that everything
is converted to 32-bit or 64-bit before doing the actual arithmetic operation.

216 General Protection fault
The application tried to access invalid memory space. This can be caused by
several problems:
Deferencing a nil pointer
Trying to access memory which is out of bounds (for example, calling move with
an invalid length).

217 Unhandled exception occurred
An exception occurred, and there was no exception handler present. The sysutils
unit installs a default exception handler which catches all excpetions and
exits gracefully.

219 Invalid typecast
Thrown when an invalid typecast is attempted on a class using the as operator.
This error is also thrown when an object or class is typecast to an invalid
class or object and a virtual method of that class or object is called. This
last error is only detected if the -CR compiler option is used.

227 Assertion failed error
An assertion failed, and no AssertErrorProc procedural variable was installed.

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