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“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?
...
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...
Difference between signed / unsigned char [duplicate]
...gnify if the number if positive or negative, but how does this apply to a char ? How can a character be positive or negative?
...
Evil Mode best practice? [closed]
... (message "graphics active")
)
(insert (shell-command-to-string "xsel -o -b"))
)
)
(global-set-key [f8] 'copy-to-clipboard)
(global-set-key [f9] 'paste-from-clipboard)
Obviously, you will have to decide for yourself whether any of these controversial changes are worth it, ...
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_...
How do you echo a 4-digit Unicode character in Bash?
...3 # Ceiling
local p=128 # Accum. bits
local s='' # Output string
(( c < 0x80 )) && { fast_chr "$c"; echo -n "$REPLY"; return; }
while (( c > o )); do
fast_chr $(( t = 0x80 | c & 0x3f ))
s="$REPLY$s"
(( c >>= 6, l++, p += o+1,...
Pointers in C: when to use the ampersand and the asterisk?
... the pointer. But things work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of this.
...
Received an invalid column length from the bcp client for colid 6
...atabase table schema.
To avoid this, try exceeding the data-length of the string datatype in the database table.
Hope this helps.
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