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Floating point vs integer calculations on modern hardware

... @JohannesSchaub-litb: SSE2 (baseline for x86-64) has packed double-precision FP. With only two 64-bit doubles per register, the potential speedup is smaller than float for code that vectorizes well. Scalar float and double use XMM registers on x86-64, with legacy x87 ...
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System.BadImageFormatException: Could not load file or assembly [duplicate]

service is x86 compiled even both computers are x64 and it works on my computer. Here in server where is win 2008 i get this error. ...
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How should I print types like off_t and size_t?

...77: '_snprintf_s' : format string '%jd' requires an argument of type '__int64', but variadic argument 1 has type 'off_t'"... A truely portable way is printf("%lld\n", (long long)x); – ericcurtin Jun 13 '18 at 16:59 ...
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Encrypt Password in Configuration Files? [closed]

...n; import java.security.spec.InvalidKeySpecException; import java.util.Base64; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.PBEKeySpec; import javax.crypto.spec.SecretKeySpec; publ...
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Convert Pandas column containing NaNs to dtype `int`

...type()). Other accepted nullable integer types are pd.Int16Dtype and pd.Int64Dtype. Pick your poison. – cs95 Apr 2 '19 at 7:56 1 ...
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Does Python SciPy need BLAS?

...-fno-second-underscore -c *.f # with gfortran ## OR for GNU compiler on 64-bit systems: #g77 -O3 -m64 -fno-second-underscore -fPIC -c *.f # with g77 gfortran -O3 -std=legacy -m64 -fno-second-underscore -fPIC -c *.f # with gfortran ## OR for Intel compiler: #ifort -FI -w90 -...
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Basic HTTP authentication with Node and Express 4

...word'} // change this // parse login and password from headers const b64auth = (req.headers.authorization || '').split(' ')[1] || '' const [login, password] = Buffer.from(b64auth, 'base64').toString().split(':') // Verify login and password are set and correct if (login && passwo...
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NSLog/printf specifier for NSInteger?

A NSInteger is 32 bits on 32-bit platforms, and 64 bits on 64-bit platforms. Is there a NSLog specifier that always matches the size of NSInteger ? ...
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Script not served by static file handler on IIS7.5

...ls that ship with the .NET Framework; one for standard systems and one for 64-bit system. The tool for 64-bit systems in located in the Framework64 directory of the Microsoft.NET directory inside the Windows folder; for example C:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727 would contain the IIS Re...
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Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP

...nd_extension = "d:/wamp/bin/php/php5.3.8/zend_ext/php_xdebug-2.1.2-5.3-vc9.dll in my php.ini file. This extension was limiting the stack to 100 so I disabled it. The recursive function is now working as anticipated. share ...