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Floating point vs integer calculations on modern hardware
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@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 ...
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...
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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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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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 -...
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...
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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Get operating system info
... '/windows nt 5.2/i' => 'Windows Server 2003/XP x64',
'/windows nt 5.1/i' => 'Windows XP',
'/windows xp/i' => 'Windows XP',
'/windows nt 5.0/i' => 'Windows 2000',
...
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...