c++ - Pointers getting allocated the same memory space -


I am writing a program in C ++ which uses the following function that has two character pointers (of course Working as a telegram) Its formal argument: 

  zero-techward (four * dstr, const char *) {int i = 0, j = 0; printf ("\ n% s", dstr); getch (); Exit (0); While (i.lifa (from [i]) // before the positioning I ++ in line; do {dstr [j] = to [i]; J ++; I ++; } While (from Islafa ([i])); dstr [j] = '\ 0'; // terminating a word with a nonsense character};   
 My problem is that the two strings are DST and they are allocated to the same memory space. 
 As a result, the changes being made in DST are being reflected in which I do not want to don.  
 So, to make sure that they have allocated different storage spaces?  
 
 The only case that does not handle the code that you provide satisfactorily is the case that is  dstr> From & amp; Amp; dstr & lt; + strlen (to)  to .  
 To fix this, you have three options:  
     
  1.  
     You write your function in a manner that ensures that the operation is free Whether or not the two strings overlap. This is likely to involve a temporary buffer.   
  2.  
     The function declares document that the function will not handle overlapping buffers properly, and make sure that the calling code does not violate this restriction in this case. For both programmers and compilers (which will be able to make additional customization), consider adding this concept to the  Restrict  keyword in the function arguments for the document. This is also a good idea.  
  3.  
     You go in the opposite direction and change the function signature to  void takeword. (Four * string)  and the document that it will move the first word to the beginning of the string and add a redundant tap character.

Comments

Post a Comment

Popular posts from this blog

c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -

In brief, the wrapper module is inserted during posting and the status of an entry is changed to 'modified' . Before changing the state, the state is set to 'separate', but calling attachments () causes the same error to be thrown away. I am using EF 6. Model / wrapper class public class avi model {public A is a {get; Set; } Public listing & lt; B & gt; B {received; Set; } Public cc {receipt; Set; }} Administrator edit public functioning (int? id) {if (id == null) {new HttpStatusCodeResult (HttpStatusCode.BadRequest); } If (! Conveyor Access (id.Value)) new HTTPTitus code result (HTTP status code. Forbidden); Var aViewModel = new AViewModel (); aViewModel.A = db.As.Find (id); If (aViewModel.Receipt == zero) {return HttpNotFound (); } aViewModel.b = db.Bs.Where (x => x.aid == id.Value) .Oolist (); AViewModel.Vendor = db.Cs.Where (x => x.cid == aViewModel.a.cID) .FirstOrDefault (); See Return (aViewModel); } [HTPFost] [Valid AntitiferousTeacon...
Read more

jasper reports - How to center align barcode using jasperreports and barcode4j -

I use iReport 5.5.0 . How to align a barcode component to the center The relevant piece of my jrxml is below & Lt; JR: Code 128 xmlns: JR = "http://jasperreports.sourceforge.net/jasperreports/components" xsi: schemaLocation = "http://jasperreports.sourceforge.net/jasperreports/components http: //jasperreports.sourceforge Purge / xsd / components.xsd "textPosition =" bottom "& gt; & Lt; Jr: codeExpression & gt; & Lt; [CDATA [$ F {number}]] & gt; & Lt; / Jr: codeExpression & gt; & Lt; / Jr: Code 128 & gt; & Lt; / componentElement & gt; "Text" itemprop = "text"> Create a style after this, it is called "barcode", like: & lt; Style name = "barcode" fontName = "Helvetica" fONTSIZE = "10" hAlign = "center" valign = "center" /> and set the property of your barcode element to "barcode".
Read more

django - CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False -

I use Django 1.6.5 with settings in my program txsite: DEBUG = true I set the lie to debug, but when I get the runner , I get the following error: CommandError: You have to set the settings. OLOWOWHESTS If DEBUG is False I ALLOWED_HOSTS = ['127.0.0.1', 'localhost'] but I get the same error. Does anyone know this address? Try ALLOWED_HOSTS = ['*'] Less secure If you are not on a firewall or public LAN, but what I use and it works. Edit: Interestingly enough, I have to add some of my 1.8 projects, even if DEBUG = True . Why so very uncertain
Read more