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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to overload the assignment operator to do a deep copy of a polygon object, the program compiles but I am getting an error toward the end that I want to clear up. Below is the relevant code, if you think I need to add more please just post a comment. Assume the proper #include 's and that the << operator is overloaded for proper output etc... The error is: malloc: * error for object 0x1001c0: pointer being freed was not allocated * set a breakpoint in malloc_error_break to debug. //Polygon.h // contains two classes PolygonNode and

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using Pdfbox to search a word(or String) from a pdf file and I also want to know the coordinates of that word. For example :- in a pdf file there is a string like "${abc}". I want to know the coordinates of this string. I Tried some couple of examples but didn't get the result according to me. in result it is displaying the coordinates of character. Here is the Code @Override protected void writeString(String string, List<TextPosition> textPositions) throws IOException { for(TextPosition text : textPositions) { System.out.println(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have below SQL. UPDATE student_queues SET Deleted=0, last_accessed_by='raja', last_accessed_on=CONVERT(VARCHAR(24),'23-07-2014 09:37:00',113) WHERE std_id IN ('2144-384-11564') AND reject_details='REJECT' when I ran the above SQL the below exception has been throwed. Conversion failed when converting date and/or time from character string. 回答1: If you're trying to insert in to last_accessed_on , which is a DateTime2 , then your issue is with the fact that you are converting it to a varchar in a format that SQL doesn't understand. If you

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hello I read Django tutorials and I have an error related to specific sha3_224 hash function during the migration process. How to solve this problem? Thank you. (venv) linuxoid@linuxoid-ThinkPad-L540:~/myprojects/myproject$ python manage.py makemigrations ERROR:root:code for hash sha3_224 was not found. Traceback (most recent call last): File "/home/linuxoid/myprojects/venv/lib/python3.6/hashlib.py", line 121, in __get_openssl_constructor f = getattr(_hashlib, 'openssl_' + name) AttributeError: module '_hashlib' has no attribute 'openssl

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In the bar chart I am creating the first and last rows are consistently being cut in half (even if I add additional bars). This also causes the values above the bars to be out of place. I am inflating this within a fragment. The axis are also only increasing by 0.9 instead of 1. To fix this do I need to implement the AxisValueFormatter interface? Image: Code: .java chart = (BarChart) view.findViewById(R.id.chart1); // Chart settings chart.setDrawGridBackground(false); chart.setHighlightFullBarEnabled(true); chart.setDrawBarShadow(false);

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I cannot rewrite to include two parameters but the last parameter is optional, so for example: http://www.mywebsite.com/friends/jamie - (the forward slash should be optional too). Which should be the same as this: http://www.mywebsite.com/friends.php?name=jamie When including a second parameter http://www.mywebsite.com/friends/jamie/30 - Should be the same as this: http://www.mywebsite.com/friends.php?name=jamie&page=30 This rule does not work: RewriteRule ^friends/(.*)/(.*)$ friends.php?name=$1&page=$2 Because I get this: The requested URL

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How to get the last digit of a number. e.g. if 1232123, 3 will be the result Some efficient logic i want so that it is easy for results having big numbers. After the final number i get, i need to some processing in it. Thanks a lot 回答1: Just take mod 10: Int32 lastNumber = num % 10; 回答2: It's just the number modulo 10. For example in C int i = 1232123; int lastdigit = (i % 10); 回答3: Here's the brute force way that sacrifices efficiency for obviousness: int n = 1232123; int last = Convert.ToInt32(n.ToString() .AsEnumerable() .Last() .ToString

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have tried both suggestions at: Codeigniter session bugging out with ajax calls But even with $config['sess_time_to_update'] = PHP_INT_MAX I am still seeing random logouts. I also took the suggestions of creating class MY_Session User's are still reporting random logouts and my logs also seem to indicate this. EDIT: Here is my session config: $config['sess_cookie_name'] = 'phppos'; $config['sess_expiration'] = 86400; $config['sess_expire_on_close'] = TRUE; $config['sess_encrypt_cookie'] = FALSE; $config['sess_use_database'] = TRUE; $config

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a simple class to try and wrap encryption for use elsewhere in my program. import java.security.SecureRandom; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.spec.SecretKeySpec; public final class StupidSimpleEncrypter { public static String encrypt(String key, String plaintext) { byte[] keyBytes = key.getBytes(); byte[] plaintextBytes = plaintext.getBytes(); byte[] ciphertextBytes = encrypt(keyBytes, plaintextBytes); return new String(ciphertextBytes); } public static byte[] encrypt(byte[] key, byte[

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to create a Bash script that will extract the last parameter given from the command line into a variable to be used elsewhere. Here's the script I'm working on: #!/bin/bash # compact - archive and compact file/folder(s) eval LAST=\$$# FILES="$@" NAME=$LAST # Usage - display usage if no parameters are given if [[ -z $NAME ]]; then echo "compact ... .tar.gz" exit fi # Check if an archive name has been given if [[ -f $NAME ]]; then echo "File exists or you forgot to enter a filename. Exiting." exit fi tar -czvpf "$NAME".tar.gz $FILES