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Execution time of C program
.... Precision depends on the architecture; on modern systems you easily get 10ms or lower, but on older Windows machines (from the Win98 era) it was closer to 60ms.
clock() is standard C; it works "everywhere". There are system-specific functions, such as getrusage() on Unix-like systems.
Java's Sys...
What's the rationale for null terminated strings?
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AShelly
31.7k1212 gold badges8080 silver badges137137 bronze badges
answered Dec 11 '10 at 20:25
Hans PassantHans Passant
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Nearest neighbors in high-dimensional data?
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180
I currently study such problems -- classification, nearest neighbor searching -- for music infor...
Where and why do I have to put the “template” and “typename” keywords?
...ary definition of boost::function and f:
namespace boost { int function = 0; }
int main() {
int f = 0;
boost::function< int() > f;
}
That's actually a valid expression! It uses the less-than operator to compare boost::function against zero (int()), and then uses the greater-than opera...
Comparing Dates in Oracle SQL
...ng to get it to display the number of employees that are hired after June 20, 1994,
But I get an error saying "JUN' invalid identifier. Please help, thanks!
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Android - startActivityForResult immediately triggering onActivityResult
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edited Mar 16 '17 at 17:07
stkent
17.7k1313 gold badges7777 silver badges9898 bronze badges
answered O...
How to store arbitrary data for some HTML tags
...e in XHTML 1.1 mode, the browser will probably complain about it, but in 1.0 mode, most browsers will just silently ignore it.
If I were you, I would follow the script based approach. You could make it automatically generated on server side so that it's not a pain in the back to maintain.
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psql: could not connect to server: No such file or directory (Mac OS X)
...ee the following error:
FATAL: pre-existing shared memory block (key 5432001, ID 65538) is still in use
HINT: If you're sure there are no old server processes still running, remove the shared memory block or just delete the file "postmaster.pid".
Following the advice in the error message, I dele...
“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20
I am using Visual Studio 2010 in debug mode and I have "optimize code" unchecked. I can't quick watch (or hover on) any variable in the debugger. I get this error "Cannot evaluate expression because the code of the current method is optimized".
...
error LNK2019: 无法解析的外部符号_socket，该符号在函数 中被引用 - c++1...
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _closesocket@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _inet_ntoa@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符...