大约有 41,000 项符合查询结果(耗时:0.0446秒) [XML]

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What happens if you static_cast invalid value to enum class?

... implementers to apply to to their C++11 and C++14 compilation modes. (*) char is required to be at least 8 bit wide, but isn't required to be unsigned. The maximum value storable is required to be at least 127 per Annex E of the C99 Standard. Compare to [expr]/4 If during the evaluation of ...
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PHP mail function doesn't complete sending of e-mail

...applied to any PHP mailing system. There are a variety of reasons your script appears to not be sending emails. It's difficult to diagnose these things unless there is an obvious syntax error. Without one you need to run through the checklist below to find any potential pitfalls you may be encounte...
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Does making a struct volatile make all its members volatile?

...by the pointer as const or volatile, use a declaration of the form: const char *cpch; volatile char *vpch; To declare the value of the pointer — that is, the actual address stored in the pointer — as const or volatile, use a declaration of the form: char * const pchc; char * volatile pchv; ...
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Use String.split() with multiple delimiters

... answered May 13 '11 at 14:59 Richard HRichard H 32.9k3333 gold badges101101 silver badges130130 bronze badges ...
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Where is C not a subset of C++? [closed]

...zeof('a') is equal to sizeof(int). In C++, sizeof('a') is equal to sizeof(char). share | improve this answer | follow | ...
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What is the MySQL VARCHAR max size?

I would like to know what the max size is for a MySQL VARCHAR type. 7 Answers 7 ...
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?

...ould restructure your schema into this, CREATE TABLE Categories ( Code CHAR(4) NOT NULL PRIMARY KEY, CategoryName VARCHAR(63) NOT NULL UNIQUE ); CREATE TABLE Courses ( CourseID INT NOT NULL PRIMARY KEY, BookID INT NOT NULL, CatCode CHAR(4) NOT NULL, CourseNum CHAR(3) NOT NULL, Cour...
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Forward an invocation of a variadic function in C

...t. See http://c-faq.com/varargs/handoff.html. Example: void myfun(const char *fmt, va_list argp) { vfprintf(stderr, fmt, argp); } share | improve this answer | follow...
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How to stop C++ console application from exiting immediately?

..., please expand Configuration Properties -> Linker -> System, please select Console (/SUBSYSTEM:CONSOLE) in SubSystem dropdown. Because, by default, the Empty project does not specify it. share | ...
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How to delete duplicate lines in a file without sorting it in Unix?

... <sniff> makes me sad. ;) Anyways, [ -~] represents a range of ASCII characters from 0x20 (space) to 0x7E (tilde). These are considered the printable ASCII characters (linked page also has 0x7F/delete but that doesn't seem right). That makes the solution broken for anyone not using ASCII or an...