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How expensive is RTTI?
...runtime memory usage.
A quick experiment (using GCC 4.4.3 on Ubuntu 10.04 64-bit) shows that -fno-rtti actually increases the binary size of a simple test program by a few hundred bytes. This happens consistently across combinations of -g and -O3. I'm not sure why the size would increase; one possi...
Convert String to double in Java
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WhiteFang34WhiteFang34
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warning: incompatible implicit declaration of built-in function ‘xyz’
... argc, char **argv) {
exit(1);
}
Compiled like this on Fedora 17 Linux 64 bit with gcc:
el@defiant ~/foo2 $ gcc -o n n2.c
n2.c: In function ‘main’:
n2.c:2:3: warning: incompatible implicit declaration of built-in
function ‘ex...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...p;' . rawurlencode($oauth_access_token_secret);
$oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
$oauth['oauth_signature'] = $oauth_signature;
// Make requests
$header = array(buildAuthorizationHeader($oauth), 'Expect:');
$options = array( C...
Chain-calling parent initialisers in python [duplicate]
...2
dF.dF.
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Convert boolean result into number/integer
... C. Buljan
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answered May 7 '13 at 9:34
RenéRené
9,06644 gold badges3...
Vertically aligning CSS :before and :after content [duplicate]
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both of them work for me on Chrome Version 52.0.2743.116 (64-bit) (Linux)
– fassl
Aug 24 '16 at 11:34
2
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How do you convert a byte array to a hexadecimal string, and vice versa?
...: 0.73 (37.9X faster)
Byte Manipulation (via Waleed Eissa)
Text: 16,856.64 (29.5X faster)
Sentence: 0.70 (39.5X faster)
Lookup/Shift (via Nathan Moinvaziri)
Text: 23,201.23 (21.4X faster)
Sentence: 1.24 (22.3X faster)
Lookup by nibble (via Brian Lambert)
Text: 23,879.41 (20.8X faster)
Sente...
How to draw an empty plot?
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64
I suggest that someone needs to make empty plot in order to add some graphics on it later. So, ...
What does “dereferencing” a pointer mean?
...d use 32 bits - which is four bytes - with addresses from 2000 to 2003. A 64-bit system would use 64 bits - 8 bytes - from 2000 to 2007. Either way, the base address of p is just 2000: if you had another pointer to p it would have to store 2000 in its four or eight bytes. Hope that helps! Cheers...