case

scala case class copy implementation

由 前提是你 提交于 2021-02-18 11:40:14
问题 I can't find how copy is implemented for case class in scala. Can I check it somehow? I though Intellij could point me to implementation, but it doesn't want to jump and I have no idea why :/ 回答1: You can inspect the scala case class output using scalac -print ClassName.scala , as the copy is actually a compiler generated method. Here's a given example: case class Test(s: String, i: Int) This is the output after filtering out noise for copy : case class Test extends Object with Product with

scala case class copy implementation

由 旧时模样 提交于 2021-02-18 11:40:08
问题 I can't find how copy is implemented for case class in scala. Can I check it somehow? I though Intellij could point me to implementation, but it doesn't want to jump and I have no idea why :/ 回答1: You can inspect the scala case class output using scalac -print ClassName.scala , as the copy is actually a compiler generated method. Here's a given example: case class Test(s: String, i: Int) This is the output after filtering out noise for copy : case class Test extends Object with Product with

sql case when end as

由 旧时模样 提交于 2021-02-15 13:02:01
CASE 可能是 SQL 中被误用最多的关键字之一。虽然你可能以前用过这个关键字来创建字段，但是它还具有更多用法。例如，你可以在 WHERE 子句中使用 CASE 。 首先让我们看一下 CASE 的语法。在一般的 SELECT 中，其语法如下： SELECT CASE WHEN < A > THEN < somethingA > WHEN < B > THEN < somethingB > ELSE < somethingE > END as < myColumnSpec > 在上面的代码中需要用具体的参数代替尖括号中的内容。下面是一个简单的例子： USE pubs GO SELECT Title, CASE WHEN price IS NULL THEN ' Unpriced ' WHEN price < 10 THEN ' Bargain ' WHEN price BETWEEN 10 and 20 THEN ' Average ' ELSE ' Gift to impress relatives ' END as ' Price Range ' FROM titles ORDER BY price GO 这是 CASE 的典型用法，但是使用 CASE 其实可以做更多的事情。比方说下面的 GROUP BY 子句中的 CASE ： SELECT ' Number of

Find string in vector of strings case insensitive c++

由 不打扰是莪最后的温柔 提交于 2021-02-15 05:57:46
问题 I have std::vector<std::string> vec; std::string myString; and I need to find out if myString is in vec using case insensitive comaprisons. I know I can use find(vec.begin(), vec.end(), myString) != vec.end()) to answer the question "is myString in vec?" but that will do case sensitive comparisons. I need case insensitive comparisons. The position is not important, I just want to know if myString is in vec or not. 回答1: Or, for a much smaller and easier-to-read solution, Boost! // #include

Find string in vector of strings case insensitive c++

由 ◇◆丶佛笑我妖孽 提交于 2021-02-15 05:57:15
问题 I have std::vector<std::string> vec; std::string myString; and I need to find out if myString is in vec using case insensitive comaprisons. I know I can use find(vec.begin(), vec.end(), myString) != vec.end()) to answer the question "is myString in vec?" but that will do case sensitive comparisons. I need case insensitive comparisons. The position is not important, I just want to know if myString is in vec or not. 回答1: Or, for a much smaller and easier-to-read solution, Boost! // #include

SQL Server : conversion error numeric to varchar case

由 若如初见. 提交于 2021-02-11 08:02:53
问题 I have this query: CASE ClaimsFees.TBA WHEN 0 THEN CAST(IndemnityReserve AS NUMERIC(9,2)) ELSE 'TBA' END AS 'Reserve Indemnity' but I always get this error: Error converting data type varchar to numeric I have tried to convert TBA as numeric but I can't do this, I also can't convert all the results to varchar because when I transfer to Excel file the number 1.325,27 becomes 132.527,00 with the ##,##0.00 format. Is there a method in SQL Server that I can use to solve this? 回答1: The column can

Change a variable value to Proper Case in VBA?

由 廉价感情. 提交于 2021-02-11 02:52:21
问题 I have a textbox, traditionally labeled as TextBox1, my TextBox1 accepts only Uppercase input (for names), but i'm using the same text to save the file in a folder, when i save i want the name of the person to be in Title case isntead, but I cant figure out how. Here is what i got so far (i dont know how to use strings, so pardon if there is some werid mistake): Private Sub CommandButton1_Click() Dim title As String title = TextBox1.Value Console.WriteLine (StrConv(title, VbStrConv.ProperCase

Change a variable value to Proper Case in VBA?

由 随声附和 提交于 2021-02-11 02:49:41
问题 I have a textbox, traditionally labeled as TextBox1, my TextBox1 accepts only Uppercase input (for names), but i'm using the same text to save the file in a folder, when i save i want the name of the person to be in Title case isntead, but I cant figure out how. Here is what i got so far (i dont know how to use strings, so pardon if there is some werid mistake): Private Sub CommandButton1_Click() Dim title As String title = TextBox1.Value Console.WriteLine (StrConv(title, VbStrConv.ProperCase

c++ access variable from different switch case

由 筅森魡賤 提交于 2021-02-11 00:35:31
问题 I'm creating a win32 application and initialized my statusbar width variables in my WM_CREATE switch case. case WM_CREATE: { int statwidths[] = { 200, -1 }; } break; I would like to access statwidths[ 0 ] in my WM_SIZE switch case as that number will be used to determine the size of the rest of my windows in my program. case WM_SIZE: { int OpenDocumentWidth = statwidths[ 0 ]; } break; Is there a way to do this? They are both in the same switch statement in the same file. 回答1: If these are

c++ access variable from different switch case

由 左心房为你撑大大i 提交于 2021-02-11 00:31:30
问题 I'm creating a win32 application and initialized my statusbar width variables in my WM_CREATE switch case. case WM_CREATE: { int statwidths[] = { 200, -1 }; } break; I would like to access statwidths[ 0 ] in my WM_SIZE switch case as that number will be used to determine the size of the rest of my windows in my program. case WM_SIZE: { int OpenDocumentWidth = statwidths[ 0 ]; } break; Is there a way to do this? They are both in the same switch statement in the same file. 回答1: If these are
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