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Why do we need argc while there is always a null at the end of argv?
...arynkevitch Time of merely stepping through an array of pointer values one extra time until NULL, to get the count, is miniscule compared to time already spent generating the pointer array, and even more irrelevant compared to actually using each argument value in the program. And if just checking i...
Ignoring accented letters in string comparison
I need to compare 2 strings in C# and treat accented letters the same as non-accented letters. For example:
6 Answers
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
...b = (byte)(127 + 1);
and then it compiles.
(*) at least not of the kind String-to-integer, float-to-Time, ... Java does support coercions if they are, in a sense, non-loss (Java calls this "widening").
And no, the word "coercion" did not need correcting. It was chosen very deliberately and cor...
How to get the input from the Tkinter Text Widget?
...the very first character). END is an imported constant which is set to the string "end". The END part means to read until the end of the text box is reached. The only issue with this is that it actually adds a newline to our input. So, in order to fix it we should change END to end-1c(Thanks Bryan O...
Android multiple email attachments using Intent
... contains multiple attachments.
public static void email(Context context, String emailTo, String emailCC,
String subject, String emailText, List<String> filePaths)
{
//need to "send multiple" to get more than one attachment
final Intent emailIntent = new Intent(Intent.ACTION_SEND_...
“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
I have Constants NSString, that I want to call like:
3 Answers
3
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What is a segmentation fault?
...as marked as read-only:
char *str = "Foo"; // Compiler marks the constant string as read-only
*str = 'b'; // Which means this is illegal and results in a segfault
Dangling pointer points to a thing that does not exist any more, like here:
char *p = NULL;
{
char c;
p = &c;
}
// Now p ...
How to list files in a directory in a C program?
...aybe I can use exec function to run find command but I want file name as a string to send client program. How can I do this?
...
Characters allowed in a URL
... So if you're trying to, say, find the end of a url within a string (which I am), it would be best to go by the obsolete standards in the accepted answer... If you're validating url's you should use the set of characters on this answer.
– ashleedawg
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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...
...这六个关卡了。
===============phase_1===============
知识点：string，函数调用，栈
用了差不多一个星期断断续续地寻找感觉的phase_1，最主要不知道从何入手。虽然phase_1也不过10+行指令，但最初我的出发点错了：完全依靠人工去读...