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Show current assembly instruction in GDB
...PC: 0x7ffff740d76d
#3 0x00007ffff7466eb5 in _IO_do_write () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x00007ffff74671ff in _IO_file_overflow ()
from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000408756 in ?? ()
#6 0x0000000000403980 in ?? ()
#7 0x00007ffff740d76d in __libc_start_main ()
f...
How does the ARM architecture differ from x86? [closed]
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auselenauselen
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
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64
GCC has:
-- Built-in Function: int __builtin_clz (unsigned int x)
Returns the number of ...
Detect if a NumPy array contains at least one non-numeric value?
... As an extra complication the input could be a single float or numpy.float64 or even something oddball like a zero-dimensional array.
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Bash empty array expansion with `set -u`
....4.
$ bash --version | head -n 1
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
$ set -u
$ arr=()
$ echo "foo: '${arr[@]}'"
foo: ''
There is a conditional you can use inline to achieve what you want in older versions: Use ${arr[@]+"${arr[@]}"} instead of "${arr[@]}".
$ function a...
NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...oxy_send_timeout 600;
proxy_read_timeout 600;
proxy_buffer_size 64k;
proxy_buffers 16 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
proxy_pass_header Set-Cookie;
proxy_redirect off;
proxy_hide_header Vary;
proxy_set_header Accept-Encoding '';
...
How are Python's Built In Dictionaries Implemented?
...it is two-thirds full. This avoids slowing down lookups. (see dictobject.h:64-65)
NOTE: I did the research on Python Dict implementation in response to my own question about how multiple entries in a dict can have same hash values. I posted a slightly edited version of the response here because al...
fastest MD5 Implementation in JavaScript
...at in to your JS code. Plus it as encoder/decoders for UTF8, UTF16 and Base64. I maintain github repository that is registered as Bower package plus instructions on how to use it with RequireJS.
Spark MD5: This is based on JKM code that other answer mentions which is also the faster implementation....
Visual Studio 2013 doesn't discover unit tests
...e up. Definitely run VS as administrator in that case.
If your solution is 64 bit, make sure that Test > Test Settings > Default Processor Architecture is set to x64. Sometimes it gets set to x86. Set it to x64, then rebuild.
Sometimes just restarting Visual Studio does the trick because the t...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...e processor, such as real mode, protected mode, virtual 8086 mode, and (amd64) long mode. This can be confusing to some.
x86 is a CISC machine. For a long time this meant it was slower than RISC machines like MIPS or ARM, because instructions have data interdependency and flags making most forms of ...