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Full Discussion: Delete Portion of a file
Top Forums Programming Delete Portion of a file Post 302103624 by sameersbn on Friday 19th of January 2007 04:08:26 PM
Old 01-19-2007
Delete Portion of a file

hi i would like to know whether i can delete a part of a file in C
for eg. if my file contained
1234567890
and i want to delete
456
so that it becomes
1237890

is there a way i can do this.

well, one way i can achieve this is by creating a new file, copy whatever i want, then delete the old file and rename the new file with the name of the old file.
but i was wondering whether it can be done in directly, i.e. without doing any copies.

plz help
regards
Edit/Delete Message
 

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delete(n)							    [incr Tcl]								 delete(n)

__________________________________________________________________________________________________________________________________________________

NAME
delete - delete things in the interpreter SYNOPSIS
itcl::delete option ?arg arg ...? _________________________________________________________________ DESCRIPTION
The delete command is used to delete things in the interpreter. It is implemented as an ensemble, so extensions can add their own options and extend the behavior of this command. By default, the delete command handles the destruction of namespaces. The option argument determines what action is carried out by the command. The legal options (which may be abbreviated) are: delete class name ?name...? Deletes one or more [incr Tcl] classes called name. This deletes all objects in the class, and all derived classes as well. If an error is encountered while destructing an object, it will prevent the destruction of the class and any remaining objects. To destroy the entire class without regard for errors, use the "delete namespace" command. delete object name ?name...? Deletes one or more [incr Tcl] objects called name. An object is deleted by invoking all destructors in its class hierarchy, in order from most- to least-specific. If all destructors are successful, data associated with the object is deleted and the name is removed as a command from the interpreter. If the access command for an object resides in another namespace, then its qualified name can be used: itcl::delete object foo::bar::x If an error is encountered while destructing an object, the delete command is aborted and the object remains alive. To destroy an object without regard for errors, use the "rename" command to destroy the object access command. delete namespace name ?name...? Deletes one or more namespaces called name. This deletes all commands and variables in the namespace, and deletes all child names- paces as well. When a namespace is deleted, it is automatically removed from the import lists of all other namespaces. KEYWORDS
namespace, proc, variable, ensemble itcl 3.0 delete(n)
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