(gdb.info) Deviations

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(gdb.info) Modula-2

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 Deviations from standard Modula-2
 .................................
 
    A few changes have been made to make Modula-2 programs easier to
 debug.  This is done primarily via loosening its type strictness:
 
    * Unlike in standard Modula-2, pointer constants can be formed by
      integers.  This allows you to modify pointer variables during
      debugging.  (In standard Modula-2, the actual address contained in
      a pointer variable is hidden from you; it can only be modified
      through direct assignment to another pointer variable or
      expression that returned a pointer.)
 
    * C escape sequences can be used in strings and characters to
      represent non-printable characters.  GDB prints out strings with
      these escape sequences embedded.  Single non-printable characters
      are printed using the `CHR(NNN)' format.
 
    * The assignment operator (`:=') returns the value of its right-hand
      argument.
 
    * All built-in procedures both modify _and_ return their argument.
 

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(gdb.info) M2 Defaults

(gdb.info) Modula-2

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