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Run task only if host does not belong to a group
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How to work with complex numbers in C?
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int main() {
double complex z1 = 1.0 + 3.0 * I;
double complex z2 = 1.0 - 4.0 * I;
printf("Working with complex numbers:\n\v");
printf("Starting values: Z1 = %.2f + %.2fi\tZ2 = %.2f %+.2fi\n", creal(z1), cimag(z1), creal(z2), cimag(z2));
double complex sum = z1 + z2;
pr...
Replace multiple strings with multiple other strings
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edited Oct 23 '14 at 11:17
SirDerpington
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What breaking changes are introduced in C++11?
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The FDIS has a section for incompatibilities, at appendix C.2 "C++ and ISO C++ 2003".
Summary, paraphrasing the FDIS here, to make it (better) suitable as a SO answer. I added some examples of my own to illustrate the differences.
There are a few library-related incompatibilities w...
PostgreSQL - fetch the row which has the Max value for a column
...id, time_stamp))
Bill's query has a cost estimate of 93k, and completes in 2.9 seconds (given a compound index on (usr_id, trans_id))
Query #1 below has a cost estimate of 16k, and completes in 800ms (given a compound index on (usr_id, trans_id, time_stamp))
Query #2 below has a cost estimate of 14k...
Checking if sys.argv[x] is defined
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edited Nov 3 '17 at 13:12
answered Mar 24 '11 at 18:17
se...
What does the red exclamation point icon in Eclipse mean?
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182
According to the documentation:
Decorates Java projects and working
sets that contain buil...
Change One Cell's Data in mysql
...ant to update...
UPDATE
mytable
SET
column1 = value1,
column2 = value2
WHERE
key_value = some_value;
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