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Strange pointer behaviour in loop


Strange pointer behaviour in loop

By : minipc
Date : November 17 2020, 01:00 AM
Does that help This expression will increment x even after the null is discovered and the loop completes:
code :
while(*x++);
while(*x) x++;


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Strange behaviour in foreach-loop inside for-loop

Strange behaviour in foreach-loop inside for-loop


By : Viraj Chitale
Date : March 29 2020, 07:55 AM
With these it helps Your code could be a bit easier to use like this. There is no point in using the next and key operations when you're already in a foreach() loop that provides that data for you. Since the foreach loop already iterates over each element in the array, calling next() manually simply causes PHP to SKIP every other element.
code :
foreach($_POST['guest'] as $idx => $guest) {
   foreach($guest as $key => $val) {
       echo "$idx: $key => $val<br>";
   }
}
1: name => foo
1: veg => ...
etc...
2: name => bar
etc...
Strange behaviour, initialize a function pointer with an int?

Strange behaviour, initialize a function pointer with an int?


By : Mad Doc
Date : March 29 2020, 07:55 AM
I hope this helps . Accidentally, I found this code compiles on VS2012. , Let's go through these one by one:
code :
func f = (func)12  //ok, cast           1
func f = func(12); //ok, what?          2
func f(12);        //failed             3
func f = 12;       //failed             4
function pointer in C strange behaviour

function pointer in C strange behaviour


By : Shuran Zhou
Date : March 29 2020, 07:55 AM
like below fixes the issue I have a small program that uses function pointers. ,
Why does the assignment generate a warning?
Display ieee 32bit representation of float ... strange behaviour on pointer output

Display ieee 32bit representation of float ... strange behaviour on pointer output


By : Dwightee
Date : March 29 2020, 07:55 AM
I wish this help you That's because a char is signed on your machine. Then, in printf, because it's a variadic function, the char is promoted to an int keeping the negative sign. Therefore the 0xC8 becomes 0xFFFFFFC8.
Use an unsigned char* vP for force the representation to be unsigned. See http://www.ideone.com/WPQ4D for a comparison.
Strange pointer behaviour with chars

Strange pointer behaviour with chars


By : Maddin
Date : March 29 2020, 07:55 AM
I wish this helpful for you You could cast the char * to a void *. The problem is, that the operator<< is overloaded to read char * as c_string.
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