大约有 43,000 项符合查询结果（耗时：0.0296秒） [XML]
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...ss File_handle {
FILE* p;
public:
File_handle(const char* n, const char* a)
{ p = fopen(n,a); if (p==0) throw Open_error(errno); }
File_handle(FILE* pp)
{ p = pp; if (p==0) throw Open_error(errno); }
~File_handle() { fclose(p); }
...
Calling Objective-C method from C++ member function?
...d );
int doSomethingWith( void * aParameter );
void logMyMessage( char * aCStr );
private:
void * self;
};
#endif
Notice the wrapper methods no longer require the void pointer to an instance of MyClass; it is now a private member of MyClassImpl. The init method is used to instantia...
Are nested HTML comments possible?
...ere. Its parent element has to be either the <body> element or a few select others.
– John E
Jan 17 '19 at 14:09
add a comment
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Getting a File's MD5 Checksum in Java
... byte data[] = org.apache.commons.codec.digest.DigestUtils.md5(fis); char md5Chars[] = Hex.encodeHex(data); String md5 = String.valueOf(md5Chars);`
– Dmitry_L
Jul 17 '13 at 10:45
...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
.../src/main.c
@@ -245,6 +245,8 @@ static int handle_alias(int *argcp, const char ***argv)
commit_pager_choice();
+ url = url_decode(url_orig);
+
/* build alias_argv */
alias_argv = xmalloc(sizeof(*alias_argv) * (argc + 1));
alias_argv[0] = alias_string + 1;
Ente...
What does void* mean and how to use it?
...
Before void pointers were available "char *" was used instead. But void is better as it cannot actually be used to alter anything directly.
– user50619
Jun 4 '19 at 13:08
...
How to check for a valid Base64 encoded string
...s pretty easy to recognize a Base64 string, as it will only be composed of characters 'A'..'Z', 'a'..'z', '0'..'9', '+', '/' and it is often padded at the end with up to three '=', to make the length a multiple of 4. But instead of comparing these, you'd be better off ignoring the exception, if it o...
Maximum MIMEType Length when storing type in DB
...s", type (eg. "application") and subtype (eg "vnd...") both can be max 127 characters. You do the math :)
Edit: Meanwhile, that document has been obsoleted by RFC 6838, which does not alter the maximum size but adds a remark:
Also note that while this syntax allows names of up to 127
characte...
generating GUID without hyphen
... is it possible to create a GUID with both Upper and lowercase chars along with numbers???
– Harish Kumar
Jan 16 '12 at 8:55
7
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Practical uses of different data structures [closed]
...ght accent at all. You need to understand not just which data structure to select, but some other points to consider when people think about data structures:
pros and cons of the common data structures
why each data structure exist
how it actually work in the memory
specific questions/exe...