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Is it good practice to NULL a pointer after deleting it?
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Setting a pointer to 0 (which is "null" in standard C++, the NULL define from C is somewhat different) avoids crashes on double deletes.
Consider the following:
Foo* foo = 0; // Sets the pointer to 0 (C++ NULL)
delete foo; // Won't do anything
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Twitter Bootstrap Tabs: Go to Specific Tab on Page Reload or Hyperlink
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Pete
3,47833 gold badges2020 silver badges3535 bronze badges
answered Feb 22 '12 at 11:18
dubbedubbe
6,...
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
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edited Jun 26 '14 at 4:02
community wiki
6 r...
How can I pass a member function where a free function is expected?
...void* context) {
fptr(context, 17, 42);
}
void non_member(void*, int i0, int i1) {
std::cout << "I don't need any context! i0=" << i0 << " i1=" << i1 << "\n";
}
struct foo {
void member(int i0, int i1) {
std::cout << "member function: this=" ...
How to implement a ViewPager with different Fragments / Layouts
...ic Fragment getItem(int pos) {
switch(pos) {
case 0: return FirstFragment.newInstance("FirstFragment, Instance 1");
case 1: return SecondFragment.newInstance("SecondFragment, Instance 1");
case 2: return ThirdFragment.newInstance("ThirdFragment, Insta...
How do I check if an HTML element is empty using jQuery?
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edited Sep 11 '13 at 20:55
answered Jul 25 '11 at 8:14
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Passing an array to a query using a WHERE clause
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answered May 25 '09 at 19:37
Flavius StefFlavius Stef
12.9k22 gold badges2323 silver badges2222 bronze badges
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Opening a folder in explorer and selecting a file
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50
Use this method:
Process.Start(String, String)
First argument is an application (explorer.exe...
How do I force git to use LF instead of CR+LF under windows?
...with LF
A first simple step would still be in a .gitattributes file:
# 2010
*.txt -crlf
# 2020
*.txt text eol=lf
(as noted in the comments by grandchild, referring to .gitattributes End-of-line conversion), to avoid any CRLF conversion for files with correct eol.
And I have always recommende...
Count rows with not empty value
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answered Sep 22 '14 at 22:03
eniacAvengereniacAvenger
77988 silver badges1717 bronze badges
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