sigabrt

When does a process get SIGABRT (signal 6)?

由 ﹥＞﹥吖頭↗ 提交于 2019-11-26 00:58:44
问题 What are the scenarios where a process gets a SIGABRT in C++? Does this signal always come from within the process or can this signal be sent from one process to another? Is there a way to identify which process is sending this signal? 回答1: abort() sends the calling process the SIGABRT signal, this is how abort() basically works. abort() is usually called by library functions which detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its

Saving custom Swift class with NSCoding to UserDefaults

由 房东的猫 提交于 2019-11-26 00:36:51
问题 I am currently trying to save a custom Swift class to NSUserDefaults. Here is the code from my Playground: import Foundation class Blog : NSObject, NSCoding { var blogName: String? override init() {} required init(coder aDecoder: NSCoder) { if let blogName = aDecoder.decodeObjectForKey(\"blogName\") as? String { self.blogName = blogName } } func encodeWithCoder(aCoder: NSCoder) { if let blogName = self.blogName { aCoder.encodeObject(blogName, forKey: \"blogName\") } } } var blog = Blog() blog

When does a process get SIGABRT (signal 6)?

由 孤者浪人 提交于 2019-11-25 19:00:46
What are the scenarios where a process gets a SIGABRT in C++? Does this signal always come from within the process or can this signal be sent from one process to another? Is there a way to identify which process is sending this signal? Nordic Mainframe abort() sends the calling process the SIGABRT signal, this is how abort() basically works. abort() is usually called by library functions which detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its internal structures are damaged by a heap overflow. You can send any signal to any process
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