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Why are preprocessor macros evil and what are the alternatives?
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A common trouble is this :
#define DIV(a,b) a / b
printf("25 / (3+2) = %d", DIV(25,3+2));
It will print 10, not 5, because the preprocessor will expand it this way:
printf("25 / (3+2) = %d", 25 / 3 + 2);
This version is safer:
#define DIV(a,b) (a) / (b)
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How to check if two arrays are equal with JavaScript? [duplicate]
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answered Apr 25 '12 at 13:22
ninjageckoninjagecko
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Get the cartesian product of a series of lists?
...oes it do?
– Vineet Kumar Doshi
Aug 25 '15 at 9:04
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@VineetKumarDoshi: Here it is used to unpcak...
Why is === faster than == in PHP?
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25
First, === checks to see if the two arguments are the same type - so the number 1 and the strin...
Why can't variable names start with numbers?
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PyrolisticalPyrolistical
25.3k2121 gold badges7777 silver badges103103 bronze badges
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PHP - include a php file and also send query parameters
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answered Aug 5 '09 at 9:25
DaffDaff
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What exactly does the .join() method do?
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answered Dec 9 '09 at 19:25
Greg HewgillGreg Hewgill
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PHP - Get key name of array value
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zrvanzrvan
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Vagrant reverse port forwarding?
....0.0 UG 0 0 0 eth0
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.33.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
You can extract this IP programmatically with netstat -rn | grep "^0.0.0.0 " | tr -s ' ' | cut -d "...
Mysql order by specific ID values
...will come first
– Hisham shahid
Apr 25 '19 at 11:58
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