Comments on: 15.2 — Basic exception handling

By: Zied ALAYA

Zied ALAYA — Mon, 18 Jan 2010 06:51:11 +0000

An excellent tutorial. for the catch with a string throw:

catch (char* strException) // catch exceptions of type char*
    {
        cerr << "Error: " << strException << endl;
    }

have to be:

catch (const char* strException) // catch exceptions of type char*
    {
        cerr << "Error: " << strException << endl;
    }

By: Lubos

Lubos — Sun, 29 Nov 2009 21:32:37 +0000

or (const char *strException). char *const strException, otoh, doesn’t work – i assume strException is treated here as pointer to a constant “string”, not a constant pointer… right?

By: Hamude

Hamude — Mon, 29 Jun 2009 12:54:03 +0000

what can the program sqrt do?

By: Hamude

Hamude — Mon, 29 Jun 2009 10:28:07 +0000

Hi
this tutorial is really great

By: kg

kg — Tue, 09 Jun 2009 15:24:48 +0000

in the sqrt program, both compilers I tried (g++4.3 & icpc11.0) made the throw statement of type char const*, so the catch statement would have to be

  catch (char const* strException)

for this exception to work properly

just a heads up :)

By: Alex

Alex — Fri, 06 Feb 2009 08:11:59 +0000

In the last example, the try block purposefully doesn’t throw anything, because it doesn’t really have any context to determine that something went wrong. Instead, it’s leaving it up to ReadParameter() to throw an exception if something went wrong. If ReadParameter() throws an int exception, the catch block will catch it and handle it.

By: Kavitha

Kavitha — Tue, 27 Jan 2009 15:25:43 +0000

Does the last example not require any THROW statement in the try block?Without that how would the try block know that an int value is thrown?

By: Learn C++ - » 15.3 — Exceptions, functions, and stack unwinding

Learn C++ - » 15.3 — Exceptions, functions, and stack unwinding — Sun, 05 Oct 2008 19:25:53 +0000

[...] 15.2 — Basic exception handling [...]

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Learn C++ - » 15.1 — Introduction to exceptions — Sun, 05 Oct 2008 19:06:39 +0000

[...] 15.2 — Basic exception handling [...]

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Learn C++ - » 15.1 — Introduction to exceptions — Sat, 04 Oct 2008 21:30:19 +0000

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