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Pretty-print C++ STL containers

...sert("hello"); j.insert("world"); double k[] = { 1.1, 2.2, M_PI, -1.0/123.0 }; std::cout << i << "\n" << j << "\n" << k << "\n"; } It currently only works with vector and set, but can be made to work with most containers, just by expanding on the IsConta...
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What is a NullPointerException, and how do I fix it?

...c static void main(String[] args) { Printer printer = new Printer("123"); printer.print(); } } See also: Avoiding “!= null” statements in Java? I still can't find the problem If you tried to debug the problem and still don't have a solution, you can post a question for...
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What is a reasonable code coverage % for unit tests (and why)? [closed]

... GishuGishu 123k4545 gold badges214214 silver badges294294 bronze badges ...
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insert vs emplace vs operator[] in c++ map

...will overwrite the previous value if one exists. – dk123 Sep 30 '13 at 9:47 ...
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Refresh image with a new one at the same url

...ing javascript to change your image's 'src' property from (e.g.) image.jpg#123 to image.jpg#124 (or whatever, so long as the bit after the '#' changes). Could you clarify what it is you're reloading, and why? – Doin Dec 26 '15 at 20:28 ...
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How to become an OpenCart guru? [closed]

...y of key => value pairs. As an example $this->data['example_var'] = 123; Accessing this in a view is a little should be easy to understand if you're familiar with the extract() method which converts each key into a variable. So the example_var key becomes $example_var and can be accessed as...
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RESTful Authentication

...c.html HTTP/1.1 Host: www.example.org Cookie: theme=light; sessionToken=abc123 The cookie technique itself is HTTP-linked, so it's not truly RESTful, which should be protocol-independent, IMHO. It is vulnerable to MiM or Replay attacks. Granted via Token (OAuth2) An alternative is to put a token...
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print call stack in C or C++

... /home/ciro/test/dwfl.cpp:112 3: 0x402de0 main at /home/ciro/test/dwfl.cpp:123 4: 0x7f7efabbe1e3 __libc_start_main at ../csu/libc-start.c:342 5: 0x40253e _start at ../csu/libc-start.c:-1 0: 0x402b74 stacktrace[abi:cxx11]() at /home/ciro/test/dwfl.cpp:65 1: 0x402ce0 my_func_2() at /home/ciro/test/dw...
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Running Bash commands in Python

...r((i=1;i<=$#;i++)); do # Arrays are Bash-only array[i]+=123 done''', shell=True, check=True, executable='/bin/bash') A subprocess is separate from its parent, and cannot change it A somewhat common mistake is doing something like subprocess.run('foo=bar', shell=Tru...
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Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?

... I just discovered that var await = 123 is perfectly legal! – Cristian Traìna Feb 7 '19 at 10:10 add a comment  |  ...