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What are the differences between ArrayList and Vector?
...%, you can avoid this by ensurecapacity() method to make sure that you are allocating sufficient memory at the initial stages itself.
Hope it helps.
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Basic HTTP authentication with Node and Express 4
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Use Buffer.from() // for strings or Buffer.alloc() // for numbers as Buffer() is deprecated due to security issues.
– Mr. Alien
Feb 25 at 6:56
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How do I use arrays in C++?
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+-|-+
p: | | |
+---+
Note that the array itself is still allocated as a single block in memory.
Arrays of pointers
You can overcome the restriction of fixed width by introducing another level of indirection.
Named arrays of pointers
Here is a named array of five pointers which ...
How do you allow spaces to be entered using scanf?
... 1. */
#define MAX_NAME_SZ 256
int main(int argC, char *argV[]) {
/* Allocate memory and check if okay. */
char *name = malloc(MAX_NAME_SZ);
if (name == NULL) {
printf("No memory\n");
return 1;
}
/* Ask user for name. */
printf("What is your name? ");
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INSERT IF NOT EXISTS ELSE UPDATE?
...ement case the statement would set it to NULL and then a fresh ID would be allocated.
This approach can also be used if you want to leave particular field values alone if the row in the replacement case but set the field to NULL in the insert case.
For example, assuming you want to leave Seen alon...
How to set UICollectionViewDelegateFlowLayout?
...ViewFlowLayout(), self.collectionViewLayout = [[UICollectionViewFlowLayout alloc]init]
– Daishi Nakajima
Mar 19 '16 at 7:30
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...so you have to copy your const char* strings char by char into dynamically allocated char* strings in order to modify them.
Example:
#include <iostream>
void print(char* ch);
void print(const char* ch) {
std::cout<<ch;
}
int main() {
print("Hello");
return 0;
}
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ASP.NET: Session.SessionID changes between requests
... is the reason
When using cookie-based session state, ASP.NET does not allocate storage for session data until the Session object is used. As a result, a new session ID is generated for each page request until the session object is accessed. If your application requires a static session ID for t...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
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Usage (inside the view):
MyLayerDelegate *delegate = [[MyLayerDelegate alloc] init];
// assign to a strong property, because CALayer's "delegate" property is weak
self.myLayerDelegate = delegate;
self.myLayer = [CALayer layer];
self.myLayer.delegate = delegate;
// ...
self.myLayerDelegate.di...
Alternative to itoa() for converting integer to string C++? [duplicate]
...even when output a simple integer: In C, you use your own buffer, possibly allocated in the stack, whereas in C++, the stringstream will use its own. In C, you can then reuse your buffer. In C++, you must extract the string from the stringstream, which is a std::string copy.
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