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How do I detect unsigned integer multiply overflow?

...thing>; int x = <something>; if ((x > 0) && (a > INT_MAX - x)) /* `a + x` would overflow */; if ((x < 0) && (a < INT_MIN - x)) /* `a + x` would underflow */; // For subtraction #include <limits.h> int a = <something>; int x = <something>; if...
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How to frame two for loops in list comprehension python

... The best way to remember this is that the order of for loop inside the list comprehension is based on the order in which they appear in traditional loop approach. Outer most loop comes first, and then the inner loops subsequently. So, the equivalent list comprehensi...
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Calling constructors in c++ without new

...d the most common way of creating new dynamic objects instead of using auto_ptr, unique_ptr, or related. – Fred Nurk Jan 18 '11 at 13:18 3 ...
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How to convert a Map to List in Java?

... If we have LinkedHashMap - will the order leave the same? – user2022068 Jun 6 '15 at 18:42 1 ...
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Undefined reference to `sin` [duplicate]

...e POSIX standard to provide their software on "POSIX compliant systems" in order to reach more platforms. UNIX customers demanded "POSIX compliant" UNIX systems to run the software. The pressures that fed into the decision to put -lm in a different library probably included, but are not limited to...
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How to gracefully handle the SIGKILL signal in Java

...acefully (SIGTERM from the manager process) or a shutdown has occurred (in order to relaunch automatically the job on startup). As a basis, I always make my long-running threads periodically aware of interrupted status and throw an InterruptedException if they interrupted. This enables execution fi...
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Best way to get child nodes

...wsers. What I want to know is how the different objects are structured, in order to get a better understanding of the similarities and differences between them. I'll edit my question later to make that clearer, sorry for the mixup – Elias Van Ootegem Apr 30 '12...
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Programmatically open new pages on Tabs

... You can, in Firefox it works, add the attribute target="_newtab" to the anchor to force the opening of a new tab. <a href="some url" target="_newtab">content of the anchor</a> In javascript you can use window.open('page.html','_newtab'); Said that, I partially ag...
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Why aren't variables declared in “try” in scope in “catch” or “finally”?

...Reader sr, [1] class [mscorlib]System.Exception ex) IL_0000: ldnull IL_0001: stloc.0 .try { .try { IL_0002: ldsfld string UsingTest.Class1::path IL_0007: newobj instance void [mscorlib]System.IO.StreamReader::.cto...
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What are the rules about using an underscore in a C++ identifier?

...r parameters. If you've come from an MFC background, you'll probably use m_foo . I've also seen myFoo occasionally. 5 An...