One Minute Evaluations for 29 January 2004

CS 509 - Advanced Programming II

• Topic: Strings, io streams, invariants, asserts.

  Question: String is an array of characters with a null terminator and you said string is non-null but c_str() is null terminated.

  One minute response: Ah, this is why it's important to keep a tight reign on terms. The string class is not required to represent strings as arrays of characters nor to use a null character to terminate the character sequence. The C/C++ convention is to represent strings as arrays of characters terminated by a null character. The c_str() string-class member function translates from the string-class representation to the C/C++ convention.

• Topic: String class and string literals, input streams, output streams, stream states and conditions, Assertion macros, invariants.

• Topic: Stream I-O, Strings.

  Question: When is it useful to use string streams?

  One minute response: I find them helpful when testing procedures that use i- or o-streams; it's much easier using a string stream then setting up a file. We'll see other uses later in the the semester.

• Topic: String, I-O streams, assert invariants.

• Topic: Strings, IO, making your program look nice.

  Question: No questions.

• Topic: We discussed about streams, state test operators, formatted input-output, file system, assertions, loop invariants, [?].

  Question: Assertions [?].

• Topic: We talked about introduction to c++, strings, stream I/O, assertions and invariants.

This page last modified on 16 July 2003.