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Assign one struct to another in C
...ment is supported for structs. However, there are problems:
struct S {
char * p;
};
struct S s1, s2;
s1.p = malloc(100);
s2 = s1;
Now the pointers of both structs point to the same block of memory - the compiler does not copy the pointed to data. It is now difficult to know which struct insta...
Rearrange columns using cut
...made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
...
Split comma-separated strings in a column into separate rows
... occasions, because the datatable approaches only produce tables with the "selected" columns, while dplyr produces a result with all the columns (including the ones not involved in the analysis and without having to write their names in the function).
– Ferroao
...
How to list files in a directory in a C program?
... function to print the content of a given folder */
void show_dir_content(char * path)
{
DIR * d = opendir(path); // open the path
if(d==NULL) return; // if was not able return
struct dirent * dir; // for the directory entries
while ((dir = readdir(d)) != NULL) // if we were able to read so...
What character encoding should I use for a HTTP header?
I'm using a "fun" HTML special-character (✰)(see http://html5boilerplate.com/ for more info) for a Server HTTP-header and am wondering if it is "allowed" per spec.
...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...取流
TextWriter textWriter = new StringWriter();//初始化写入流
char[] c=new char[4096];
int chars = 0;
while ((chars = textReader.Read(c, 0, 4096)) > 0)//把流中数据写入到字符数组中
{
textWriter.Write(c, 0, 4096);//从字符数组中读取流
}
string str= textWrit...
Get Android Phone Model programmatically
...talize(String str) {
if (TextUtils.isEmpty(str)) {
return str;
}
char[] arr = str.toCharArray();
boolean capitalizeNext = true;
StringBuilder phrase = new StringBuilder();
for (char c : arr) {
if (capitalizeNext && Character.isLetter(c)) {
phrase.append(Character.t...
Is there a generator version of `string.split()` in Python?
...'][')
EDIT: Corrected handling of surrounding whitespace if no separator chars are given.
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How to find list of possible words from a letter matrix [Boggle Solver]
...aster; it turns out to use regular-expression matching instead of a set of characters. Doing the same in Python about doubles the speed.
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How can I save application settings in a Windows Forms application?
...gs. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain...