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Programmatically find the number of cores on a machine
...CPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib for hw.ncpu */
mib[0] = CTL_HW;
mib[1...
Can you have if-then-else logic in SQL? [duplicate]
...
106
You can make the following sql query
IF ((SELECT COUNT(*) FROM table1 WHERE project = 1) >...
For loop example in MySQL
...e procedure load_foo_test_data()
begin
declare v_max int unsigned default 1000;
declare v_counter int unsigned default 0;
truncate table foo;
start transaction;
while v_counter < v_max do
insert into foo (val) values ( floor(0 + (rand() * 65535)) );
set v_counter=v_counter+1;
en...
How can I do DNS lookups in Python, including referring to /etc/hosts?
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answered May 10 '10 at 18:36
Jochen RitzelJochen Ritzel
89.3k2525 gold badges181181 silver badges180180 bronze badges
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What is the EAFP principle in Python?
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answered Jul 6 '12 at 10:56
Sven MarnachSven Marnach
446k100100 gold badges833833 silver badges753753 bronze badges
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Check for array not empty: any?
...e you serious?
– 3lvis
Feb 7 '14 at 10:17
29
He is so not not serious!
– Al...
Fast ceiling of an integer division in C / C++
...terested in a method of returning the ceiling instead. For example, ceil(10/5)=2 and ceil(11/5)=3 .
10 Answers
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How to check if a Ruby object is a Boolean
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answered Jun 13 '10 at 19:42
Konstantin HaaseKonstantin Haase
24.2k22 gold badges5252 silver badges5757 bronze badges
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Calculate relative time in C#
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1005
Jeff, your code is nice but could be clearer with constants (as suggested in Code Complete).
...
Calculate business days
...ss days" in PHP. For example, Friday 12/5 + 3 business days = Wednesday 12/10.
36 Answers
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