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How to add leading zeros?

...x <- 10 ^ (0:5) paste (and it's variant paste0) are often the first string manipulation functions that you come across. They aren't really designed for manipulating numbers, but they can be used for that. In the simple case where we always have to prepend a single zero, paste0 is the best s...
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How to generate a core dump in Linux on a segmentation fault?

...oid); static void cleanup(void); void init_signals(void); void panic(const char *, ...); struct sigaction sigact; char *progname; int main(int argc, char **argv) { char *s; progname = *(argv); atexit(cleanup); init_signals(); printf("About to seg fault by assigning zero to *s\n...
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How do I pass an extra parameter to the callback function in Javascript .filter() method?

I want to compare each string in an Array with a given string. My current implementation is: 8 Answers ...
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scp with port number specified

...ns which modify the way getopt will do the parsing (the options and the optstring in the SYNOPSIS), and the parameters which are to be parsed (parameters in the SYNOPSIS). The second part will start at the first non-option parameter that is not an option argument, or after the first occurr...
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How do exceptions work (behind the scenes) in c++

...ception, @object .size _ZTS11MyException, 14 _ZTS11MyException: .string "11MyException" The typeinfo data. .section .eh_frame,"a",@progbits .Lframe1: .long .LECIE1-.LSCIE1 .LSCIE1: .long 0x0 .byte 0x1 .string "zPL" .uleb128 0x1 .sleb128 -4 .byte ...
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What is the purpose of static keyword in array parameter of function like “char s[static 10]”?

...ot write someArray=someOtherArray. It is the same as if the parameter were char * const someArray. This syntax is only usable within the innermost [] of an array declarator in a function parameter list; it would not make sense in other contexts. The Standard text, which covers both of the above...
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How do I put double quotes in a string in vba?

... I prefer creating a global variable: Public Const vbDoubleQuote As String = """" 'represents 1 double quote (") Public Const vbSingleQuote As String = "'" 'represents 1 single quote (') and using it like so: Shell "explorer.exe " & vbDoubleQuote & sPath & vbDoubleQuote, ...
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How to un-escape a backslash-escaped string?

Suppose I have a string which is a backslash-escaped version of another string. Is there an easy way, in Python, to unescape the string? I could, for example, do: ...
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Array versus List: When to use which?

...imensional; where-as you have have rectangular (etc) arrays like int[,] or string[,,] - but there are other ways of modelling such data (if you need) in an object model. See also: How/When to abandon the use of Arrays in c#.net? Arrays, What's the point? That said, I make a lot of use of arrays...
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Change key pair for ec2 instance

...ts on boxes you've been connecting from. – brandonscript Apr 9 '14 at 6:38 22 ...