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How do I provide custom cast support for my class?

... explicit. The syntax is like this: public static implicit operator dbInt64(Byte x) { return new dbInt64(x); } or public static explicit operator Int64(dbInt64 x) { if (!x.defined) throw new DataValueNullException(); return x.iVal; } For your example, say from your custom ...
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console.log timestamps in Chrome?

... 70.0.3538.110 (Official Build) (64-bit) This answer once worked for me: i.e. console "gear icon"; "Show timestamps" checkmark ... but now I don't see "Show timestamps" in Chrome 70.0.3538.110 (Official Build) (64-bit) So I tried @tekiegirl's suggestion r...
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What is the difference between a cer, pvk, and pfx file?

...cate. These can be in "binary" (ASN.1 DER), or it can be encoded with Base-64 and have a header and footer applied (PEM); Windows will recognize either. To verify the integrity of a certificate, you have to check its signature using the issuer's public key... which is, in turn, another certificate. ...
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Why do stacks typically grow downwards?

... written, so that it would know the actual RAM installed (e.g., a z80 with 64K address space didn't necessarily have 64K or RAM, in fact 64K would have been massive in my early days). Once it found the top actual address, it would set the stack pointer appropriately and could then start calling subr...
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How to extract text from a PDF? [closed]

...hat I had to import - luckily no images. Ghostscript worked for me: gswin64c -sDEVICE=txtwrite -o output.txt input.pdf The output file was split into pages with headers, etc., but it was then easy to write an app to strip out blank lines, etc, and suck in all 30,000 records. -dSIMPLE and -dCOMPLE...
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Usage of __slots__?

...991611 >>> min(timeit.repeat(get_set_delete_fn(not_slotted))) 0.3664822799983085 The slotted access is almost 30% faster in Python 3.5 on Ubuntu. >>> 0.3664822799983085 / 0.2846834529991611 1.2873325658284342 In Python 2 on Windows I have measured it about 15% faster. Why use __s...
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What languages are Windows, Mac OS X and Linux written in?

...It's the segmentation that makes it REALLY 386 dependent (every task has a 64Mb segment for code & data - max 64 tasks in 4Gb. Anybody who needs more than 64Mb/task - tough cookies). [...] Some of my "C"-files (specifically mm.c) are almost as much assembler as C. [...] Unlike minix, I also happ...
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Eclipse executable launcher error: Unable to locate companion shared library

....jar --launcher.library plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20120913-144807 For some twisted reason jars have version in their name - so if you upgrade/have two different version of eclipse( while eclipse.ini is either linked or provided as system wide conf file for ecli...
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0.1 float is greater than 0.1 double. I expected it to be false [duplicate]

...id. This difference can and does actually occur, because x86 does not use 64-bits for its internal floating-point computations; it actually uses 80-bits! This is called double extended-precision. So, even among just x86 compilers, it sometimes happen that the same number is represented two differ...
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“The page you are requesting cannot be served because of the extension configuration.” error message

...am with an incorrect format As it turns out, the server was running 2008 64 bit and I was trying to run the 32 bit version of the utility. Running the version found in \Windows\Microsoft.NET\Framework64\v2.0.50727 fixed the issue. c:\Windows\Microsoft.NET\Framework64\v2.0.50727>aspnet_regiis....