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how to install gcc on windows 7 machine?
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EDIT Since not so recently by now, MinGW-w64 has "absorbed" one of the toolchain building projects. The downloads can be found here. The installer should work, and allow you to pick a version that you need.
Note the Qt SDK comes with the same toolchain. So if you ar...
Registry Key '…' has value '1.7', but '1.6' is required. Java 1.7 is Installed and the Registry is P
...s. Before the change over we had a JAR that was running fine on Java 1.7 x64 along with JRE 7. When we moved over to the new server our JAR was running alright, but then one of the server admins "updated" our Java to an older version and uninstalled the one we were using. Don't ask me why, I don'...
usr/bin/ld: cannot find -l
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Kevin Panko
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answered May 23 '13 at 9:33
Saurabh BholaSaurabh Bhola
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Can I convert long to int?
... method GetHashCode() is a good choice:
int checkSumAsInt32 = checkSumAsIn64.GetHashCode();
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application/x-www-form-urlencoded or multipart/form-data?
...oose a more efficient encoding of binary data to save bandwidth (e.g. base 64 or even raw binary).
Why not use multipart/form-data all the time? For short alphanumeric values (like most web forms), the overhead of adding all of the MIME headers is going to significantly outweigh any savings from m...
“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
...und my problem. The issue was that my integers were actually type numpy.int64.
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How do I check OS with a preprocessor directive?
..., with links to where they're found:
Windows
_WIN32 Both 32 bit and 64 bit
_WIN64 64 bit only
Unix (Linux, *BSD, Mac OS X)
See this related question on some of the pitfalls of using this check.
unix
__unix
__unix__
Mac OS X
__APPLE__
__MACH__
Both are defined; checking for either s...
How do I convert an integer to binary in JavaScript?
... https://stackoverflow.com/questions/10936600/javascript-decimal-to-binary-64-bit
*/
return (~dec).toString(2);
}
}
I had some help from here
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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 ...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...a look at this excellent answer: https://stackoverflow.com/a/11227902/1001643
Compilers typically don't have enough information to know which branches will alias and whether those aliases will be significant. However, that information can be determined at runtime with tools such as Cachegrind and...