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Why does Java switch on contiguous ints appear to run faster with added cases?

...t of this code involves multiplying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but not the fastest possible, see Update 2 below) to get the multiplied value is to switch on the exponent : ...
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mysql_config not found when installing mysqldb python interface

... answered Oct 10 '12 at 8:01 xtornasol512xtornasol512 2,09911 gold badge99 silver badges66 bronze badges ...
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How do I choose grid and block dimensions for CUDA kernels?

.... They can be roughly summarized as: Each block cannot have more than 512/1024 threads in total (Compute Capability 1.x or 2.x and later respectively) The maximum dimensions of each block are limited to [512,512,64]/[1024,1024,64] (Compute 1.x/2.x or later) Each block cannot consume more than 8k/16...
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snprintf and Visual Studio 2010

... @DeadMG - it does, however, support the C90 standard as well as a few bits of C99, making it a C compiler. – Andrew May 27 '10 at 14:26 15 ...
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What is the largest Safe UDP Packet Size on the Internet

...s to be a necessary consequence of IPv4: The IPv4 total length field is 16 bits, and that value must include the length of the IP header and the length of the UDP header. – jtpereyda Oct 13 '16 at 22:18 ...
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Understanding the main method of python [duplicate]

...proach to "main" is almost unique to the language(*). The semantics are a bit subtle. The __name__ identifier is bound to the name of any module as it's being imported. However, when a file is being executed then __name__ is set to "__main__" (the literal string: __main__). This is almost always...
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坐等升级!Win10终极正式版迎里程碑 - 资讯 - 清泛网 - 专注IT技能提升

坐等升级!Win10终极正式版迎里程碑Windows 10今年会有两次大的更新,五月更新已经推送,而接下来更新的版本为20H2。据外媒最新消息称,Windows 10 20H2已经达到了宣布普遍 Windows 10今年会有两次大的更新,五月更新已经推送,...
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Mapping two integers to one, in a unique and deterministic way

... if you plan to implement a pairing function, you may soon find you need arbitrarily large integers (bignums). If you don't want to make a distinction between the pairs (a, b) and (b, a), then sort a and b before applying the pairing function. Actually I lied. You are looking for a bijective ZxZ -&g...
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Accessing an SQLite Database in Swift

...t which can be implemented as follows: internal let SQLITE_STATIC = unsafeBitCast(0, to: sqlite3_destructor_type.self) internal let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self) Reset SQL to insert another value. In this example, I'll insert a NULL value: if sqlite3_reset...
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Parse a .py file, read the AST, modify it, then write back the modified source code

... You might not need to re-generate source code. That's a bit dangerous for me to say, of course, since you have not actually explained why you think you need to generate a .py file full of code; but: If you want to generate a .py file that people will actually use, maybe so that ...