problem description use malloc to apply for space in a function in a C language project. Finally, the function returns the value saved in this space, that is, there is no space requested by free in the function, so do you need free outside the functio...
I use UTF8 to transfer the iconv function for GBK, void TransContent(const char *pFromCode, const char *pToCode, const char *pInBuf, size_t iInLen, char *pOutBuf, size_t iOutLen) { char* sResult = NULL; iconv_t hIconv = iconv_open(pToCod...
< H2 > question < H2 > mysql looks for data, but how to find out only the year of the data? for example, there are data of 2016 create_at, 2017 and 2018 in create_at. I just want to get 2016, br, 2017, 2018 . < H2 > Code < H2 > SELECT creat...
recently, when I was learning to develop a php extension and create a class, I compiled successfully, but I reported an error: Segmentation fault (core dumped) when executing the test file * $Id$ * -sharpifdef HAVE_CONFIG_H -sharpinclude "conf...
my algorithm idea is to take the 0th element of the array (arr [0]) as the hub. The array arr [0] is the left pointer and the array arr [9] is the right pointer. The left pointer moves to the right until a number larger than the hub key is found and the...
according to the three-letter escape sequence in books?! The | character should be output when it is returned, but why did it output as is??! -sharpinclude < stdio.h > int main (void) { printf ( "Whatshop thanks! "); return 0; } ...
for example, given a number 210 (11010010 in binary), where bits 2, 5, 7, and 8 are 1 (starting from the rightmost), then the result is [2 mine5, 7, 8]. are there any efficient solutions? ...
for example, the integer 430 (110101110 in binary), I want to find out where the fourth 1 of this number starts on the right, which in this case is 5 (the ordinal starts at 0). are there any efficient algorithms? The implementation of any language is ...
C typedef struct { ElemSet e1; ElemSet e2; ElemSet e3; }Triplet; Status InitTriplet(Triplet *t,ElemSet v1,ElemSet v2,ElemSet v3) { t = (Triplet *)malloc(sizeof(Triplet)); if (!t) { return ERROR; ...
our compiled application exe, then puts together the necessary files for dll, including folders, on which it depends, ready to package and release (installshield). my idea is that to package these (including the dll, that exe, depends on, etc.) and di...
there is one thing I don t quite understand about the implementation of the glibc wordexp interface. API is as follows: int wordexp (const char *words, wordexp_t *pwordexp, int flags) take a look at the implementation of glibc. When flag is WRDE_...
* * author: cw1997 a10702005 [changwei1006@gmail.com] * datetime: 2018-10-22 23:29:39 * -sharpinclude <iostream> -sharpinclude <ctime> -sharpinclude <cmath> void printarr(long n, long arr[]) { printf(" n"); for...
topic description there are 10 characters, and each string is 100 characters long. Please write a program in any language to find the longest string that all 10 strings contain. ...
this program blocks, then waits for you to enter an integer, then outputs it as is, and then blocks again, and so on. (compiler: VS2005) -sharpinclude<stdio.h> int main() { int i; while(1) { puts(""); scanf(...
topic description enter an array and a number to determine whether the sum of three numbers in the array is equal to this number ...
-sharpinclude<malloc.h> -sharpinclude<stdio.h> -sharpinclude<stdlib.h> void init(int *p) { p=(int *)malloc(sizeof(int)); } int main() { int *p; init(p); *p=4; printf("%d",*p); return 0; }...
use syscall to call the function to report an error. The following code shows whether there is something wrong with my writing -sharpinclude <stdio.h> -sharpinclude <fcntl.h> -sharpinclude <unistd.h> -sharpinclude <sys syscall.h>...
-sharp a = [{ info1 : someinfo , date : 1}, { info1 : someinfo , date : 4}, { info1 : someinfo , date : 7}, { info1 : someinfo , date : 13}] b = [{ info1 : someinfo , date : 3}, { info1 : someinfo ...
use modifiers before format characters to specify the width of the input data, such as the following program, the input abcde, wants to output an abcde, but the order in which the character variables are declared makes the results different. what is the...
< H2 > question < H2 > Aliyun previously had a domain name that was successfully registered, and now wants to add a domain name, such as the figure below. how to operate < H2 > Picture < H2 > id ...
how to write it in a table $( -sharpexample ).DataTable( { "processing": true, "ajax": " files", "ajax":" files {id}", "columns": [ { "data": "na...
enter the jupyter notebook error message in the console after installing jupyter as follows: C: Users Administrator>jupyter notebook Traceback (most recent call last): File "c: python27 lib runpy.py", line 174, in _run_module_as_mai...
querySelector compared to getElement series. Why is there a performance problem? I don t think there is a good answer on the Internet. Since there are performance problems, why is this method widely used in many libraries? ...
The pop-up window in the page is hidden in the div on this page. Only when you click the mouse will it pop up . how can I get the pop-up window information with requests ...
instructions for using iconfont symbol references <svg class="icon" aria-hidden="true"> <use xlink:href="-sharpicon-xxx">< use> < svg> it says: uses some tricks to support styling through f...