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undefined reference to boost::system::system_category() when compiling
I'm trying to compile a program on Ubuntu 11.10 that uses the Boost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program.
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How to change height of grouped UITableView header?
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Get nth character of a string in Swift programming language
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Is there a built-in method to compare collections?
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Is there any advantage of using map over unordered_map in case of trivial keys?
...re I used map before, because of the efficiency of lookup ( amortized O(1) vs. O(log n) ). Most times I use a map, I use either int or std::string as the key type; hence, I've got no problems with the definition of the hash function. The more I thought about it, the more I came to realize ...
How to “pretty” format JSON output in Ruby on Rails
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How do you test functions and closures for equality?
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How to define custom configuration variables in rails
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Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
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edited Oct 18 '17 at 21:18
David
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Count occurrences of a char in a string using Bash
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120
I would use the following awk command:
string="text,text,text,text"
char=","
awk -F"${char}" ...