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C++ templates Turing-complete?
...;
template<int n>
struct State {
enum { value = n };
static char const * name;
};
template<int n>
char const* State<n>::name = "unnamed";
struct QAccept {
enum { value = -1 };
static char const* name;
};
struct QReject {
enum { value = -2 };
static char ...
How can I remove a character from a string using Javascript?
...tting this, but it just isn't right.
All I would like to do is remove the character r from a string.
The problem is, there is more than one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
...
Reading string from input with space character? [duplicate]
...s per your need.
Use:
scanf ("%[^\n]%*c", name);
The [] is the scanset character. [^\n] tells that while the input is not a newline ('\n') take input. Then with the %*c it reads the newline character from the input buffer (which is not read), and the * indicates that this read in input is discar...
How much is the overhead of smart pointers compared to normal pointers in C++?
...ude <thread>
uint32_t n = 100000000;
void t_m(void){
auto a = (char*) malloc(n*sizeof(char));
for(uint32_t i=0; i<n; i++) a[i] = 'A';
}
void t_u(void){
auto a = std::unique_ptr<char[]>(new char[n]);
for(uint32_t i=0; i<n; i++) a[i] = 'A';
}
void t_u2(void){
a...
Remove specific characters from a string in Python
I'm trying to remove specific characters from a string using Python. This is the code I'm using right now. Unfortunately it appears to do nothing to the string.
...
What are the most-used vim commands/keypresses?
...navigate text, 10 or so keys to start adding text, and 18 ways to visually select an inner block. Or do you!?
10 Answers
...
How to allocate aligned memory only using the standard library?
...
Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0F;
memset_16aligned(ptr, 0, 10...
How is std::function implemented?
... // function pointer types for the type-erasure behaviors
// all these char* parameters are actually casted from some functor type
typedef R (*invoke_fn_t)(char*, Args&&...);
typedef void (*construct_fn_t)(char*, char*);
typedef void (*destroy_fn_t)(char*);
// type-aware...
See all breakpoints in Visual Studio 2010+
...
In Visual Studio 2017, Ctrl+D duplicates the current selection and Ctrl+B adds a new breakpoint at the current line. Ctrl+F9 does nothing.
– Malcolm
May 7 '19 at 16:16
...
What's the difference between a temp table and table variable in SQL Server?
...-unique indexes too.
Table variables don't participate in transactions and SELECTs are implicitly with NOLOCK. The transaction behaviour can be very helpful, for instance if you want to ROLLBACK midway through a procedure then table variables populated during that transaction will still be populated...