local-variables

Assignment of local variables causes Audio to stop processing in JUCE

由 久未见 提交于 2019-12-13 03:45:31
问题 EDIT: This turned out to be an uninitialized variable creating chaotic behavior. See this post about getting more compiler warnings for JUCE I was attempting to create a basic synthesizer and I quickly ran into an absurd problem when simply attempting to assign a value to a newly declared variable. After following along with the JUCE simple sine synthesis tutorial I ran into the problem. This is the basic code of my getNextAudioBlock() function when it is producing white noise. Note how there

How to default-initialize local variables of built-in types in C++?

由 牧云@^-^@ 提交于 2019-12-12 07:20:47
问题 How do I default-initialize a local variable of primitive type in C++? For example if a have a typedef: typedef unsigned char boolean;//that's Microsoft RPC runtime typedef I'd like to change the following line: boolean variable = 0; //initialize to some value to ensure reproduceable behavior retrieveValue( &variable ); // do actual job into something that would automagically default-initialize the variable - I don't need to assign a specific value to it, but instead I only need it to be

Using Row_number() OVER(partition BY..) along with declaring local variables

由 岁酱吖の 提交于 2019-12-12 06:07:23
问题 I have a sql query, in this sql query I want to select distinct columns irrespective of column first. For other sql query I use Row_number() OVER(partition BY..) and I also need to use inner join. The query in which I want to use row_number and inner join is - DECLARE @columns NVARCHAR(MAX) DECLARE @params NVARCHAR(MAX) = '@columns NVARCHAR(MAX) OUTPUT' DECLARE @sql NVARCHAR(MAX) = 'SELECT @columns = STUFF( ( SELECT '',''+ [column_name] FROM information_schema.columns WHERE (table_schema = '

How do i declare and increment local variables in db2?

由 风格不统一 提交于 2019-12-12 03:45:52
问题 I want to show row number for each of result set row, I have this query in mySQL SELECT @rownum := @rownum + 1 row, e.* FROM Employee e, (SELECT @rownum := 0) r Here @rownum is local variable and would increment its value for each result row. How do i write this query in db2 ( ibm's dashdb ) ? 回答1: If you're just looking to number the output rows, you can use the row_number() function: select row_number() over() as row, e.* from Employee e 回答2: If you are looking to set a variable and set a

D3.js How to update a global variable from d3.select()

由 回眸只為那壹抹淺笑 提交于 2019-12-12 03:01:42
问题 I'm stuck with a global/local variable issue. Here, my code based on http://www.d3noob.org/2014/04/using-html-inputs-with-d3js.html index.html <!DOCTYPE html> <html lang="en"> <meta charset="utf-8"> <title>Input test (circle)</title> <head> <script src="http://d3js.org/d3.v3.min.js"></script> </head> <body> <p> <label for="nRadius" style="display: inline-block; width: 240px; text-align: right"> radius = <span id="nRadius-value">…</span> </label> <input type="range" min="1" max="150" id=

Returning local variable from a function [duplicate]

由 孤者浪人 提交于 2019-12-12 02:59:21
问题 This question already has answers here : returning a local variable from function in C [duplicate] (4 answers) Closed 4 years ago . In the following code, I return a pointer to a char array that is created locally inside the function. Therefore When the return value is assigned to y , it should all be garbage. This seems to hold true when I print %10s or %100s . But when I print %1000s , I get an output that seems to confound me. #include <stdio.h> char* get() { char x[1000] ; int i = 0; for(

Memory address of global and local variable

由 元气小坏坏 提交于 2019-12-11 20:07:46
问题 I've just used local and global variable with the same name. Local variable located in a function. The code snippet is as below (in PHP): $var = 10; function fn () { $var = 20; return $var; } fn (); echo $var; If the global variable contain 10 then after calling the fn() how variable $var remain unchanged where $var is assigned to 20 in the function. Both have same name, my question is how memory track which one is global and which one is local? 来源： https://stackoverflow.com/questions

problems when using source, <<-, local/global variables and environments in R

由 旧街凉风 提交于 2019-12-11 15:52:14
问题 See below for my reprex of my issues with source, <-, <<-, environments, etc. There's 3 files, testrun.R, which calls inputs.R and CODE.R. # testrun.R (file 1) today <<- "abcdef" source("inputs.R") for (DC in c("a", "b")) { usedlater_3 <- paste("X", DC, used_later2) print(usedlater_3) source("CODE.R", local = TRUE) } final_output <- paste(OD_output, used_later2, usedlater_3) print(final_output) # #---- file 2 # # inputs.R # used_later1 <- paste(today, "_later") # used_later2 <- "l2" # # #----

Error 2 Use of unassigned local variable 'Y'

由 我与影子孤独终老i 提交于 2019-12-11 10:25:59
问题 Again i run into an error i don't mean to bug anyone but I'm getting an error on this code: using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Input_Program { class Program { private static void Main() { char Y; char N; Console.WriteLine("Welcome to my bool program!"); Console.WriteLine("Input a NON capital y or n when told to."); if(Y == 'y') { Console.WriteLine("Thank you,Please wait....."); } } } } Thanks for you answers! 回答1: Your variable char

Ruby local_variables returns :symbols?

由 半腔热情 提交于 2019-12-11 08:11:11
问题 I was looking through the ruby Kernel doc and saw this method: a = 2 local_variables # => [:a, :_] Why does it return :a and not a? I thought the ":" was reserved for symbols, but the symbol :a doesn't point to the variable a nor to it's assigned value, 2. Furthermore, how would I go about accessing the actual variables through this method? As in b=local_variables.first (would be 2, but is :a). Is there a reason behind this behavior, what is it? Thanks/ 回答1: Why does it return :a and not a? I
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