[Solved] [] operator in std::map is giving me segmentation fault [closed]

[ad_1] Maybe your myMap is no longer accessible. For instance, it might be a reference to a deleted pointer, or, much more probable, a member variable of an already deleted class: class MyClass { public: selfInsert(std::string myKey) { if(!myKey.empty()) { myMap[myKey] = this; } } private: std::map<std::string, myClass*> myMap; } int main() { MyClass *a … Read more

[Solved] Free and paid version of iOS app [closed]

[ad_1] I have seen many developers publish a “Lite” version of the app for free with limited features, and a full featured version of the app that costs $$. I think there is plenty of precedent for this approach that you shouldn’t get any push back from Apple. But I have heard they can be … Read more

[Solved] VB If statement AND/OR

[ad_1] for simple .. use SELECT CASE Private Sub txtchange_Change() Select case Ucase(txtchange.Text) case “A” : lbloutput.Caption = “Apple” case “B” : lbloutput.Caption = “Banana” case “C” : lbloutput.Caption = “Cat” case “D” : lbloutput.Caption = “Dog” case “RED” : lbloutput.BackColor = RGB(255, 0, 0) case Else lbloutput.Caption = “Not Found” End Select End Sub … Read more

[Solved] Creating a JavaScript global array with static elements?

[ad_1] The problem isn’t that removeFunction doesn’t have access to bigArray. The problem is in your onclick attribute, and the id you’re putting on the link: $(‘#div’).append(“<a href=”#” id=’bigArray[i]’ onclick=’removeFunction(bigArray[i])’>Element bigArray[i]</a><br />”); In the onclick, you’re referring to i, but A) I’m guessing i isn’t a global, and B) Even if it is, it will … Read more

[Solved] How to randomly generate ANSI colors in Bash/Perl?

[ad_1] In bash, you need to use color escape sequences with echo -e random_colors.sh #!/bin/bash TXT=’the quick brown fox jumped over the lazy dog.’ WORDS=( $TXT ) for WORD in “${WORDS[@]}”; do let “i=$RANDOM % 256” echo -en “\e[38;5;${i}m$WORD \e[0m”; done; echo Running this 10 times: for i in `seq 1 10`; do bash random_colors.sh; … Read more

[Solved] Using NSDateFormatter in objective-C [duplicate]

[ad_1] First, your date format is wrong — the second line should be [dateFormatter setDateFormat:@”yyyy-MM-dd’T’HH:mm:ss.000Z”]; — that is, you need the ss. after the mm: but before the 000Z. This will give you the correct NSDate. Next, you need to create a new date formatter with the format @”dd.M.yyyy” (or @”d.M.yyyy” if you want to … Read more

[Solved] How System.out.println(s1==s3.intern()); //return true? [closed]

[ad_1] Interning is making identical immutable objects hold the same reference to save memory. When s3 is interned, it is set to point to s1 from the inter pool(as it is a literal it is added there readily). Since they have the same reference, == returns true. 1 [ad_2] solved How System.out.println(s1==s3.intern()); //return true? [closed]

[Solved] Need help conditionally vectorizing a list [closed]

[ad_1] You can use pandas: import pandas as pd l = [-1.5,-1,-1,0,0,-1,0,1.5,1,1,1,1,0,0,0,0,1,0,1,0,1.5,1,1,1,1,0,0,0,0,-1.5] s = pd.Series(l) cond1 = (s == 1.5) cond2 = (s == -1.5) cond3 = (s == 0) cond4 = ((s == 1) | (s == -1)) & (s.shift() == 0) out = pd.Series(pd.np.select([cond1, cond2, cond3, cond4],[1, -1, 0 ,0], pd.np.nan)).ffill() out.tolist() Output: … Read more

[Solved] How can I reduce the virtual memory required by gccgo compiled executable?

[ad_1] I was able to locate where gccgo is asking for so much memory. It’s in the libgo/go/runtime/malloc.go file in the mallocinit function: // If we fail to allocate, try again with a smaller arena. // This is necessary on Android L where we share a process // with ART, which reserves virtual memory aggressively. … Read more