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How do I use vim registers?
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@dotancohen Technically it's called PRIMARY selection, but I guess "mouse higlight" is easier for people to get :)
– kyrias
Nov 26 '13 at 16:45
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SHFileOperation函数总结(文件夹的移动、复制、删除) - C/C++ - 清泛网 -...
...leOperation用法总结:
//删除文件或者文件夹
bool DeleteFile(char * lpszPath)
{
SHFILEOPSTRUCT FileOp={0};
FileOp.fFlags = FOF_ALLOWUNDO | //允许放回回收站
FOF_NOCONFIRMATION; //不出现确认对话框
FileOp.pFrom = lpszPath;
FileOp.pTo = NULL; //一定要是NULL
FileOp...
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...
HashMap get/put complexity
...te information out of thin air. Having a data structure of n element I can select one element in n different way. With that, I can encode log(n) bit information. If I can encode that in zero bit (that is what O(1) means) then I created an infinitely compressing ZIP algorithm.
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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).
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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...
How to allocate aligned memory only using the standard library?
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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...
What is the optimal length for an email address in a database?
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The maximum length of an email address is 254 characters.
Every email address is composed of two parts. The local part that comes before the '@' sign, and the domain part that follows it. In "user@example.com", the local part is "user", and the domain part is "example.c...
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.
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How can I convert a character to a integer in Python, and viceversa?
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that is because the latter got selected as the answer lol
– Sean W
Aug 29 at 17:05
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