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Difference between \n and \r?
...al results in this output NOPdefghijlm. The \r (carriage return) in the string results in the cursor moving to the beginning of the line (carriage) and the characters following the \r (i.e. "NOP") overwrite what was previously there (i.e. the "abc")! You can achieve similar "carriage movement" wi...
memcpy() vs memmove()
...
But to sight out one difference:
#include <memory.h>
#include <string.h>
#include <stdio.h>
char str1[7] = "abcdef";
int main()
{
printf( "The string: %s\n", str1 );
memcpy( (str1+6), str1, 10 );
printf( "New string: %s\n", str1 );
strcpy_s( str1, sizeof(str1), "...
What is a WeakHashMap and when to use it? [duplicate]
...is good to implement canonical maps. Lets say you want to associate
some extra information to an object that you have a strong reference
to. You put an entry in a WeakHashMap with the object as the key, and
the extra information as the map value. Then, as long as you keep a
strong reference ...
Convert a float64 to an int in Go
... I know the strconv package can be used to convert anything to or from a string, but not between data types where one isn't a string. I know I can use fmt.Sprintf to convert anything to a string, and then strconv it to the data type I need, but this extra conversion seems a bit clumsy - is the...
Can a Byte[] Array be written to a file in C#?
...le to a file."
The path of least resistance would be:
File.WriteAllBytes(string path, byte[] bytes)
Documented here:
System.IO.File.WriteAllBytes - MSDN
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Node.js check if path is file or directory
...
The following should tell you. From the docs:
fs.lstatSync(path_string).isDirectory()
Objects returned from fs.stat() and fs.lstat() are of this type.
stats.isFile()
stats.isDirectory()
stats.isBlockDevice()
stats.isCharacterDevice()
stats.isSymbolicLink() (only valid with fs.lstat())
...
How many String objects will be created when using a plus sign?
How many String objects will be created when using a plus sign in the below code?
6 Answers
...
Removing double quotes from variables in batch file creates problems with CMD environment
...n extra double quote at the end, which is adding it back to the end of the string (after removing both quotes from the string).
Input:
set widget="a very useful item"
set widget
set widget=%widget:"=%
set widget
Output:
widget="a very useful item"
widget=a very useful item
Note: To replace Do...
How do I parse a string to a float or int?
In Python, how can I parse a numeric string like "545.2222" to its corresponding float value, 545.2222 ? Or parse the string "31" to an integer, 31 ?
...
What size do you use for varchar(MAX) in your parameter declaration?
...
cmd.Parameters.Add("@blah", OleDbType.LongVarChar, -1).Value = "very big string";
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