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How do I find where an exception was thrown in C++?

...#endif #include <execinfo.h> #include <signal.h> #include <string.h> #include <iostream> #include <cstdlib> #include <stdexcept> void my_terminate(void); namespace { // invoke set_terminate as part of global constant initialization static const bool SE...
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?

... problems if the compiler had to "arrange for another behaviour" (e.g. use extra instructions to check for potential overflow and calculate differently in that case). It is also worth noting that "undefined behaviour" doesn't mean "doesn't work". It means that the implementation is allowed to do w...
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How to check for a valid Base64 encoded string

Is there a way in C# to see if a string is Base 64 encoded other than just trying to convert it and see if there is an error? I have code code like this: ...
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How do I analyze a program's core dump file with GDB when it has command-line parameters?

...ddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> int myfunc(int i) { *(int*)(NULL) = i; /* line 7 */ return i - 1; } int main(int argc, char **argv) { /* Setup some memory. */ char data_ptr[] = "string in data segment"; char *mmap_ptr; ...
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How to escape a pipe char in a code statement in a markdown table?

... Thanks. This works on Github. Github MarkDown seems to recognize the string \| within a table and act accordingly. – Stephen Chung Nov 26 '18 at 12:09 ...
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Get the generated SQL statement from a SqlCommand object?

...o the "text" command doesn't account for parameters etc public static String ParameterValueForSQL(this SqlParameter sp) { String retval = ""; switch (sp.SqlDbType) { case SqlDbType.Char: case SqlDbType.NChar: case SqlDbType.NText:...
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When would I need a SecureString in .NET?

I'm trying to grok the purpose of .NET's SecureString. From MSDN: 11 Answers 11 ...
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how to stop browser back button using javascript

.... the 3rd argument to history.pushState() is a url. Solutions which pass a string like 'no-back-button' or 'pagename' seem to work OK, until you then try a Refresh/Reload on the page, at which point a "Page not found" error is generated when the browser tries to locate a page with that as its Url. (...
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Easiest way to detect Internet connection on iOS?

...all native C code snippet that can check internet connectivity without any extra class. Add the following headers: #include<unistd.h> #include<netdb.h> Code: -(BOOL)isNetworkAvailable { char *hostname; struct hostent *hostinfo; hostname = "google.com"; hostinfo = get...
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How to check if a string in Python is in ASCII?

I want to I check whether a string is in ASCII or not. 16 Answers 16 ...