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C++ performance challenge: integer to std::string conversion
...
#include <string>
const char digit_pairs[201] = {
"00010203040506070809"
"10111213141516171819"
"20212223242526272829"
"30313233343536373839"
"40414243444546474849"
"50515253545556575859"
"60616263646566676869"
"70717273747576777879"...
FileNotFoundException while getting the InputStream object from HttpURLConnection
...equested the input stream first before sending the XML body. In the code snipped below, the line InputStream in = conn.getInputStream(); came immediately after ByteArrayOutputStream out = new ByteArrayOutputStream(); which is the incorrect order of things.
ByteArrayOutputStream out = new ByteArrayO...
const char *, char const *, char * const 异同？const修饰符各位置有何区...
const char *, char const *, char * const 异同？const修饰符各位置有何区别？const char * p = new char('a'); 这个是常字符，即p的内容不能被修改。char const * p 意义同上，没有区别。 这时，*...const char * p = new char('a'); 这个是常字符，即p的内容...
Implicit type conversion rules in C++ operators
...re promoted to int
Note. The minimum size of operations is int. So short/char are promoted to int before the operation is done.
In all your expressions the int is promoted to a float before the operation is performed. The result of the operation is a float.
int + float => float + float = flo...
What's the rationale for null terminated strings?
...
From the horse's mouth
None of BCPL, B, or C supports
character data strongly in the
language; each treats strings much
like vectors of integers and
supplements general rules by a few
conventions. In both BCPL and B a
string literal denotes the address of
a static ar...
How to use Fiddler to monitor WCF service
...assuming that the app generates web requests rather than using some other pipeline).
If you want a tool that is more powerful (but more difficult to use) that will allow you to monitor ALL incoming requests, you should check out WireShark.
Edit
I stand corrected. Thanks to Eric Law for posting th...
How can I get the current page's full URL on a Windows/IIS server?
...zero net performance benefit to using singles over doubles. None, nadda, zip, zero. It's an old wive's tale from the PHP3 era. Please don't perform such trivial mangling to content.
– Charles
Dec 16 '12 at 20:44
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error C2440: \'initializing\' : cannot convert from \'char *\' to \'co...
error C2440: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string *'error C2440: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string<char,...error C2440: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string<char,struct...
WAMP 403 Forbidden message on Windows 7
....0.0.1
</Directory>
You can set them to allow connections from all IP addresses like follows :
AllowOverride All
Order allow,deny
Allow from all
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Replace a character at a specific index in a string?
I'm trying to replace a character at a specific index in a string.
8 Answers
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