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Why should I use a pointer rather than the object itself?
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It's very unfortunate that you see dynamic allocation so often. That just shows how many bad C++ programmers there are.
In a sense, you have two questions bundled up into one. The first is when should we use dynamic allocation (using new)? The second is when should w...
How to add 2 buttons into the UINavigationbar on the right side without IB?
...ith iOS 5+ it's as easy as:
UIBarButtonItem *btnShare = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(share)];
UIBarButtonItem *btnRefresh = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self ...
Using Python String Formatting with Lists
...ruct a string s in Python 2.6.5 which will have a varying number of %s tokens, which match the number of entries in list x . I need to write out a formatted string. The following doesn't work, but indicates what I'm trying to do. In this example, there are three %s tokens and the list has thr...
The written versions of the logical operators
...by this became less used.
In C++, they became what are known as alternate tokens. You do not need to include anything to use these tokens in a compliant compiler (as such, the C++-ified version of the C header, <ciso646>, is blank). Alternate tokens are just like regular tokens, except for sp...
Get path of executable
...t;boost/predef.h>
#include <boost/version.hpp>
#include <boost/tokenizer.hpp>
#if (BOOST_VERSION > BOOST_VERSION_NUMBER(1,64,0))
# include <boost/process.hpp>
#endif
#if (BOOST_OS_CYGWIN || BOOST_OS_WINDOWS)
# include <Windows.h>
#endif
#include <boost/executabl...
Do threads have a distinct heap?
... a stack overflow.
Since all threads share the same heap, access to the allocator/deallocator must be synchronized. There are various methods and libraries for avoiding allocator contention.
Some languages allow you to create private pools of memory, or individual heaps, which you can assign ...
Choice between vector::resize() and vector::reserve()
I am pre-allocating some memory to my a vector member variable. Below code is minimal part
4 Answers
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What is the difference between Google App Engine and Google Compute Engine?
...e docker to install s/w in GAE, does it mean google takes care of creating/allocating a linux instance with basic configurations and then runs docker on tops of it? In essence, compute engine adds additional responsibility of VM configs. Am I right?
– old-monk
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What is a Memory Heap?
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Presumably you mean heap from a memory allocation point of view, not from a data structure point of view (the term has multiple meanings).
A very simple explanation is that the heap is the portion of memory where dynamically allocated memory resides (i.e. memory ...
How to extract a floating number from a string [duplicate]
...at by stepping to it directly:
user_input = "Current Level: 1e100 db"
for token in user_input.split():
try:
# if this succeeds, you have your (first) float
print float(token), "is a float"
except ValueError:
print token, "is something else"
# => Would print ...
#...