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How do I return multiple values from a function in C?
... just silly. In that case, I would return the int and pass the string as a char * and a size_t for the length unless it's absolutely vital for the function to allocate it's own string and/or return NULL.
– Chris Lutz
Apr 12 '10 at 6:14
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Test if characters are in a string
...
Use the grepl function
grepl(value, chars, fixed = TRUE)
# TRUE
Use ?grepl to find out more.
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What is a Portable Class Library?
...g screenshots and detailed matrices showing available features across your selections if you're into that sort of thing.
See Portable Library Tools anouncement blog post, which starts:-
The Portable Library Tools CTP adds a new "Portable Class Library" project template to Visual Studio that c...
Best database field type for a URL
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The URL really might break the 65,535 byte row limit
Your queries won't select or update a bunch of URLs at once (or very often). This is because TEXT columns just hold a pointer inline, and the random accesses involved in retrieving the referenced data can be painful.
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Trim spaces from start and end of string
... for (var i = str.length - 1; i >= 0; i--) {
if (/\S/.test(str.charAt(i))) {
str = str.substring(0, i + 1);
break;
}
}
return str;
}
"if you want to handle long strings exceptionally fast in all browsers".
References
blog.stevenlevithan.com --...
Where is the itoa function in Linux?
...nclude <stdio.h>
#include <stdlib.h>
int main ()
{
int i;
char buffer [33];
printf ("Enter a number: ");
scanf ("%d",&i);
itoa (i,buffer,10);
printf ("decimal: %s\n",buffer);
itoa (i,buffer,16);
printf ("hexadecimal: %s\n",buffer);
itoa (i,buffer,2);
printf ("bin...
How can I make Visual Studio wrap lines at 80 characters?
...ions >> Text Editor >> All Languages >> General >> Select Word Wrap.
I dont know if you can select a specific number of columns?
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How to pattern match using regular expression in Scala?
... Some(p.Jo.StartsWith(fn)),
Some(p.`.*(\\w)$`.Regexp(lastChar))) =>
println(s"Match! $fn ...$lastChar")
case _ => println("nope")
}
}
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convert a char* to std::string
...g to store data retrieved by fgets() . To do this I need to convert the char* return value from fgets() into an std::string to store in an array. How can this be done?
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C pointers : pointing to an array of fixed size
... an array to a function is by using a pointer-to-array parameter
void foo(char (*p)[10]);
(in C++ language this is also done with references
void foo(char (&p)[10]);
).
This will enable language-level type checking, which will make sure that the array of exactly correct size is supplied a...