Yhyjyk

What helicopter has the most rotor blades?

lm and glm function in R

How do I overlay a PNG over two videos (one video overlays another) in one command using FFmpeg?

Reflections in a Square

“Since the train was delayed for more than an hour, passengers were given a full refund.” – Why is there no article before “passengers”?

Book about a teenager and alien

Does traveling In The United States require a passport or can I use my green card if not a US citizen?

Does using the inspiration rules for character defects tend to encourage players to display MGS?

/bin/ls sorts differently than just ls

Putting Ant-Man on house arrest

Trying to enter the Fox's den

Can the van der Waals coefficients be negative in the van der Waals equation for real gases?

Can I ask an author to send me his ebook?

Is there a way to convert Wolfram Language expression to string?

Is it OK if I do not take the receipt in Germany?

Are Flameskulls resistant to magical piercing damage?

Why does BitLocker not use RSA?

Network questions

Short story about an alien named Ushtu(?) coming from a future Earth, when ours was destroyed by a nuclear explosion

What documents does someone with a long-term visa need to travel to another Schengen country?

Who can become a wight?

xkeyval -- read keys from file

reduction from 3-SAT to Subset Sum problem

Does the Pact of the Blade warlock feature allow me to customize the properties of the pact weapon I create?

Recursive calls to a function - why is the address of the parameter passed to it lowering with each call?

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;

7

Consider following code:

#include <iostream>
using namespace std;
void test_func(int address) 
 cout<<&address<<" ";
 if(address < 0x7FFBEE26) 
 test_func(address);
 

int main()

 test_func(512);
 cout<<"Hello";
 return 0;

Hello from main() is certainly not reached, since the recursive calls to test_func never end.

However, from what I can see in the cout present in test_func - the addresses being printed are lower and lower with each iteration. Why is that happening?

c++

share|improve this question

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You are passing a copy - that has to have an address
  
  – UnholySheep
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Remember that the default stack size on linux is 10MB and its 1 MB on windows. Also the stack need not be in the same location each time you run your program.
  
  – drescherjm
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I can't understand why this isn't eligible for tail-call optimization. The invocation of test_func is the last line in the function...
  
  – cyberbisson
  50 mins ago
  
  

  
  
  
  

add a comment | 

7

Consider following code:

#include <iostream>
using namespace std;
void test_func(int address) 
 cout<<&address<<" ";
 if(address < 0x7FFBEE26) 
 test_func(address);
 

int main()

 test_func(512);
 cout<<"Hello";
 return 0;

Hello from main() is certainly not reached, since the recursive calls to test_func never end.

However, from what I can see in the cout present in test_func - the addresses being printed are lower and lower with each iteration. Why is that happening?

c++

share|improve this question

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You are passing a copy - that has to have an address
  
  – UnholySheep
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Remember that the default stack size on linux is 10MB and its 1 MB on windows. Also the stack need not be in the same location each time you run your program.
  
  – drescherjm
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I can't understand why this isn't eligible for tail-call optimization. The invocation of test_func is the last line in the function...
  
  – cyberbisson
  50 mins ago
  
  

  
  
  
  

add a comment | 

Consider following code:

#include <iostream>
using namespace std;
void test_func(int address) 
 cout<<&address<<" ";
 if(address < 0x7FFBEE26) 
 test_func(address);
 

int main()

 test_func(512);
 cout<<"Hello";
 return 0;

Hello from main() is certainly not reached, since the recursive calls to test_func never end.

However, from what I can see in the cout present in test_func - the addresses being printed are lower and lower with each iteration. Why is that happening?

c++

share|improve this question

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

#include <iostream>
using namespace std;
void test_func(int address) 
 cout<<&address<<" ";
 if(address < 0x7FFBEE26) 
 test_func(address);
 

int main()

 test_func(512);
 cout<<"Hello";
 return 0;

share|improve this question

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 1 hour ago

drescherjm

6,59923553

edited 1 hour ago

drescherjm

6,59923553

asked 1 hour ago

tears allotears allo

361

New contributor

tears allo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 1 hour ago

tears allotears allo

361

1 Answer
1

active

oldest

votes

11

Likely address is being placed on the stack and, on your platform, the stack grows downward in memory. See this question about stack growth direction for more.

share|improve this answer

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

tears allo is a new contributor. Be nice, and check out our Code of Conduct.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55800947%2frecursive-calls-to-a-function-why-is-the-address-of-the-parameter-passed-to-it%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

11

Likely address is being placed on the stack and, on your platform, the stack grows downward in memory. See this question about stack growth direction for more.

share|improve this answer

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

add a comment | 

11

Likely address is being placed on the stack and, on your platform, the stack grows downward in memory. See this question about stack growth direction for more.

share|improve this answer

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

add a comment | 

Likely address is being placed on the stack and, on your platform, the stack grows downward in memory. See this question about stack growth direction for more.

share|improve this answer

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

share|improve this answer

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232

answered 1 hour ago

David SchwartzDavid Schwartz

140k14145232