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Allowed memory size of 33554432 bytes exhausted (tried to allom>cat m>e 43148176 bytes) in php
This error message is being presented, any suggestions?
21 Answers
21
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Sleeping in a batch file
When writing a batch file to automate something on a Windows box, I've needed to pause its execution for several seconds (usually in a test/wait loop, waiting for a process to start). At the time, the best solution I could find uses ping (I kid you not) to achieve the desired effect. I've found a be...
Evaluate expression given as a string
I'm curious to know if R can use its eval() function to perform calculations provided by e.g. a string.
7 Answers
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Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
A while ago I came across some code that marked a member variable of a class with the mutable keyword. As far as I can see it simply allows you to modify a variable in a const method:
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Omit rows containing specific column of NA
I want to know how to omit NA values in a data frame, but only in some columns I am interested in.
8 Answers
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generate days from date range
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This solution uses no loops, procedures, or temp tables. The subquery generates dates for the last 10,000 days, and could be extended to go as far back or forward as you wish.
select a.Date
from (
select curdate() - INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 ...
Why should a Java class implement comparable?
Why is Java Comparable used? Why would someone implement Comparable in a class? What is a real life example where you need to implement comparable?
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How to work with complex numbers in C?
How can I work with complex numbers in C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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What exactly is a reentrant function?
Most of the times , the definition of reentrance is quoted from Wikipedia :
7 Answers
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How do I test which class an object is in Objective-C?
...n instance of
// given class or an instance of any class that inherits from that class.
or
[yourObject isMemberOfClass:[a class]]
// Returns a Boolean value that indim>cat m>es whether the receiver is an instance of a
// given class.
To get object's class name you can use NSStringFromClass functio...