@map_history(variable)
This is a special form: the argument must be a variable identifier. It
returns a map where the keys are integers and the values are the
successive values assigned to the variable. Integer 0
corresponds to
the current value, 1
to the previous value, etc. Variable's history
has a bounded length that can be specified using a @local
or a@global
declaration.
See also @tab_history, @map_history_date and @map_history_rdate.
See also System Related Functions @arch_darwin, @arch_linux, @arch_windows, @configuration_arch, @configuration_audiosample, @configuration_debug, @configuration_faust, @configuration_host, @configuration_release, @configuration_target_architecture, @current_load_directory, @directory_read, @exe_child_of, @exe_parent, @history_length, @host_date, @is_fastforward, @is_following_on, @is_paused, @is_playing_on, @is_running, @is_stopped, @pwd, @system, @Tracing, @UnTracing @usage_resident_memory_size, @usage_statistics, @usage_virtual_memory_size