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How to get the current directory in a C program?
...
Have you had a look at getcwd()?
#include <unistd.h>
char *getcwd(char *buf, size_t size);
Simple example:
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
int main() {
char cwd[PATH_MAX];
if (getcwd(cwd, sizeof(cwd)) != NULL) {
prin...
What is the use of the %n format specifier in C?
...inted. The argument must be a pointer to a signed int, where the number of characters written so far is stored.
#include <stdio.h>
int main()
{
int val;
printf("blah %n blah\n", &val);
printf("val = %d\n", val);
return 0;
}
The previous code prints:
blah blah
val = 5
...
How do I initialize a byte array in Java?
...;
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
If you let CDRIVES static and final, the performance drop is irrelevant.
...
How does strtok() split the string into tokens in C?
...one token becomes the starting token of the next token?also is there a nul character placed in the place of the ending condition?
– user379888
Oct 8 '10 at 12:32
1
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windows C++ gbk转为utf-8 - C/C++ - 清泛网 - 专注C/C++及内核技术
...码的中文字符串
//slen是utf8_string字符数组的大小
int multichar_2_utf8(const char *m_string,char *utf8_string,int slen) {
int len=0;
wchar_t *w_string;
//char *utf8_string;
//计算由ansi转换为unicode后，unicode编码的长度
len=MultiByteToWideChar(CP...
Replacing all non-alphanumeric characters with empty strings
...ter, since only the first occurrence of "^" is negating the meaning of the selection. [^\\p{IsAlphabetic}\\p{IsDigit}] works well.
– Bogdan Klichuk
Jan 19 '18 at 17:22
1
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Reverse a string in Java
...
This won't work for Unicode characters outside of BMP, as long as for combining characters.
– nau
Aug 17 '18 at 11:36
2
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Regular expression to get a string between two strings in Javascript
...ng pattern. However, a dot . in JavaScript regex does not match line break characters, so, what will work in 100% cases is a [^] or [\s\S]/[\d\D]/[\w\W] constructs.
ECMAScript 2018 and newer compatible solution
In JavaScript environments supporting ECMAScript 2018, s modifier allows . to match any c...
What does {0} mean when initializing an object?
... initialized shall be
default-initialized.
Example:
struct S { int a; char* b; int c; };
S ss = { 1, "asdf" };
initializes ss.a with 1, ss.b with
"asdf", and ss.c with the value of an
expression of the form int(), that is,
0.
You can find the complete spec on this topic here
...
Pass an array of integers to ASP.NET Web API?
...ctionContext.ActionArguments[_parameterName] = parameters.Split(Separator).Select(int.Parse).ToArray();
}
}
public char Separator { get; set; }
}
I am applying it like so (note that I used 'id', not 'ids', as that is how it is specified in my route):
[ArrayInput("id", Separator =...