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Is it safe to use -1 to set all bits to true?

... on datasets of N bits by breaking it down into chunks of sizeof(unsigned)*CHAR_BIT bits each. – MSalters May 4 '09 at 7:22 2 ...
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Pandas - Get first row value of a given column

... To select the ith row, use iloc: In [31]: df_test.iloc[0] Out[31]: ATime 1.2 X 2.0 Y 15.0 Z 2.0 Btime 1.2 C 12.0 D 25.0 E 12.0 Name: 0, dtype: float64 To select the ith val...
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How to enter quotes in a Java string?

...you didn't specify), but you should be able to "escape" the quotation mark character with a backslash: "\"ROM\"" share | improve this answer | follow | ...
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How can I view the source code for a function?

...tialPolygons Functions that call unexported functions In the case of ts.union, .cbindts and .makeNamesTs are unexported functions from the stats namespace. You can view the source code of unexported functions by using the ::: operator or getAnywhere. > stats:::.makeNamesTs function (...) { ...
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Get list of all tables in Oracle?

... SELECT owner, table_name FROM dba_tables This is assuming that you have access to the DBA_TABLES data dictionary view. If you do not have those privileges but need them, you can request that the DBA explicitly grants you...
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What does multicore assembly language look like?

...few tweaks to make it work on gem5, so you can experiment with performance characteristics as well. I haven't tested it on real hardware, so and I'm not sure how portable this is. The following Raspberry Pi bibliography might be of interest: https://github.com/bztsrc/raspi3-tutorial/tree/a3f069b7...
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What does the 'L' in front a string mean in C++?

... It's a wchar_t literal, for extended character set. Wikipedia has a little discussion on this topic, and c++ examples. share | impr...
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UnicodeDecodeError, invalid continuation byte

...anks (and to the other that replied), I was under the mistaken belief that chars up until 255 would directly convert. – RuiDC Apr 5 '11 at 15:28 ...
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C: Run a System Command and Get Output? [duplicate]

... #include <stdio.h> #include <stdlib.h> int main( int argc, char *argv[] ) { FILE *fp; char path[1035]; /* Open the command for reading. */ fp = popen("/bin/ls /etc/", "r"); if (fp == NULL) { printf("Failed to run command\n" ); exit(1); } /* Read the output a ...
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How do I install cURL on cygwin?

...p.exe and the Category name is Net, in that look for package name curl and select it. – Kuldeep Jain Oct 19 '13 at 7:42 ...