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Constant pointer vs Pointer to constant [duplicate]
...elf but the object pointed to by ptr shall not be modified.
const int a = 10;
const int* ptr = &a;
*ptr = 5; // wrong
ptr++; // right
While
int * const ptr;
declares ptr a const pointer to int type. You are not allowed to modify ptr but the object pointed to by ptr can be modified.
in...
Check if string contains only whitespace
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edited Jun 26 at 20:31
AMC
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answered Mar ...
How to append text to a text file in C++?
...:app); // append instead of overwrite
outfile << "Data";
return 0;
}
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How do I get the current line number?
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180
In .NET 4.5 / C# 5, you can get the compiler to do this work for you, by writing a utility metho...
What's the best way to iterate over two or more containers simultaneously
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What's the difference between console.dir and console.log?
...dir(/foo/);
* /foo/
global: false
ignoreCase: false
lastIndex: 0
...
You can also see a clear difference with arrays (e.g., console.dir([1,2,3])) which are logged differently from normal objects:
> console.log([1,2,3])
[1, 2, 3]
> console.dir([1,2,3])
* Array[3]
0: 1
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How to get URL parameter using jQuery or plain JavaScript?
... sPageURL.split('&'),
sParameterName,
i;
for (i = 0; i < sURLVariables.length; i++) {
sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] === sParam) {
return sParameterName[1] === undefined ? true : decodeURIComponent(sParamet...
Wrap long lines in Python [duplicate]
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def fun():
print(('{0} Here is a really long '
'sentence with {1}').format(3, 5))
Adjacent string literals are concatenated at compile time, just as in C. http://docs.python.org/reference/lexical_analysis.html#string-literal-concate...
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
...l evaluate to true if value is not:
null
undefined
NaN
empty string ("")
0
false
The above list represents all possible falsy values in ECMA-/Javascript. Find it in the specification at the ToBoolean section.
Furthermore, if you do not know whether a variable exists (that means, if it was decla...
Unique random string generation
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answered Apr 8 '09 at 14:58
Mark SynowiecMark Synowiec
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