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How to run a program without an operating system?
...n:
an x86 Lenovo Thinkpad T430 laptop with UEFI BIOS 1.16 firmware
an ARM-based Raspberry Pi 3
We will also try them out on the QEMU emulator as much as possible, as that is safer and more convenient for development. The QEMU tests have been on an Ubuntu 18.04 host with the pre-packaged QEMU 2.11....
How do I analyze a program's core dump file with GDB when it has command-line parameters?
...2'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
7 *(int*)(NULL) = i; /* line 7 */
(gdb) bt
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
#1 0x0000564583cf2858 in main (argc=3, argv=0x7ffcca4effa8) at main.c:2
So not...
Will the base class constructor be automatically called?
Would the age of customer be 2? It seems like the base class's constructor will be called no matter what. If so, why do we need to call base at the end sometimes?
...
How to get the value from the GET parameters?
...se_query_string will fail for values that contain '=', like when passing a base64 encoded value as value. The version using regular expresion below is works better.
– Manel Clos
Nov 30 '18 at 14:49
...
Best practices for circular shift (rotate) operations in C++
...motion rules mean that rotl_template(u16 & 0x11UL, 7) would do a 32 or 64-bit rotate, not 16 (depending on the width of unsigned long). Even uint16_t & uint16_t is promoted to signed int by C++'s integer-promotion rules, except on platforms where int is no wider than uint16_t.
On x86, th...
vertical-align with Bootstrap 3
...isleading. Your examples don't work with bootstrap; its grid system is not based on flex, thus they are incompatible. Simply try whatever of your examples in a bootstrap-powered page and you'll realize they don't work.
– Pere
Feb 18 '15 at 16:28
...
How to perform a real time search and filter on a HTML table
...').toLowerCase();
return !~text.indexOf(val);
}).hide();
});
Demo: http://jsfiddle.net/7BUmG/2/
Regular expression search
More advanced functionality using regular expressions will allow you to search words in any order in the row. It will work the same if you type apple green or gre...
Python dictionary: Get list of values for list of keys
...
A little speed comparison:
Python 2.7.11 |Anaconda 2.4.1 (64-bit)| (default, Dec 7 2015, 14:10:42) [MSC v.1500 64 bit (AMD64)] on win32
In[1]: l = [0,1,2,3,2,3,1,2,0]
In[2]: m = {0:10, 1:11, 2:12, 3:13}
In[3]: %timeit [m[_] for _ in l] # list comprehension
1000000 loops, best of 3...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...lt; N), finding the position (N) of the highest set bit is the integer log base 2 of that integer.
http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogObvious
unsigned int v;
unsigned r = 0;
while (v >>= 1) {
r++;
}
This "obvious" algorithm may not be transparent to everyone...
How do I check out a remote Git branch?
... -b newbranch also works great for 1-step create and checkout a new branch based on the current branch.
– Linus
May 19 '16 at 13:41
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