大约有 41,000 项符合查询结果(耗时:0.0311秒) [XML]

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Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?

...them from their #define values. Importantly, never test booleans using a character comparison -- it's not only risky because someVar could be assigned a non-zero value which is not YES, but, in my opinion more importantly, it fails to express the intent correctly: if(someVar==YES) { ... } // don'...
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Converting an int to std::string

... int length = snprintf( NULL, 0, "%d", x ); assert( length >= 0 ); char* buf = new char[length + 1]; snprintf( buf, length + 1, "%d", x ); std::string str( buf ); delete[] buf; return str; } You can do more with it. Just use "%g" to convert float or double to string, use "%x" to co...
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How would one write object-oriented code in C? [closed]

...r an object, something like: typedef struct { int (*open)(void *self, char *fspec); int (*close)(void *self); int (*read)(void *self, void *buff, size_t max_sz, size_t *p_act_sz); int (*write)(void *self, void *buff, size_t max_sz, size_t *p_act_sz); // And data goes here. } tCo...
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Which iomanip manipulators are 'sticky'?

... Important notes from the comments below: By Martin: @Chareles: Then by this requirement all manipulators are sticky. Except setw which seems to be reset after use. By Charles: Exactly! and the only reason that setw appears to behave differently is because there are requ...
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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...

...能是C语言的内部函数,于是查到其定义为:int sscanf(const char *str, const char *format,…),给出一个使用实例:sscanf(“s 1”, “%s %d”, str, &a),函数返回2(因为接收了2个参数),str为char*类型,保存”s”;a为int类型,保存1。由此,...
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LINQPad [extension] methods [closed]

...QueryLanguage.Expression, @"from c in Customers where c.Name.Length > 3 select c.Name", "Click to run!").Dump(); You can also write your own extension methods in LINQPad. Go to 'My Queries' and click the query called 'My Extensions'. Any types/methods that define here are accessible to all quer...
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Adding a newline into a string in C#

...fkdfdsfdflkdkfk@ dfsdfjk72388389@ kdkfkdfkkl@ jkdjkfjd@ jjjk@ The New line character is not effective in the text file. – balaweblog Oct 22 '08 at 4:08 ...
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Read lines from a file into a Bash array [duplicate]

... this worked with NAUTILUS_SCRIPT_SELECTED_FILE_PATHS that has '\012' (\n) char on it, thx! using any output: IFS=$'\n' read -d '' -r -a astr < <(echo -e "a b c\nd e\nf"); checking: for str in "${astr[@]}";do echo $str;done; – Aqua...
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Maximum length of the textual representation of an IPv6 address?

... 45 characters. You might expect an address to be 0000:0000:0000:0000:0000:0000:0000:0000 8 * 4 + 7 = 39 8 groups of 4 digits with 7 : between them. But if you have an IPv4-mapped IPv6 address, the last two groups can b...
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How to convert a String into an ArrayList?

... Why doesn't this work List<Character> word1 = new ArrayList<Character>(Arrays.asList(A[0].toCharArray())); I'm trying to get first String of an string array, and convert that string into charArray and that charArray to List<Character> ...