(autosprintf.info)Introduction

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1 Introduction
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This package makes the C formatted output routines ('fprintf' et al.)
usable in C++ programs, for use with the '<string>' strings and the
'<iostream>' streams.

   It allows to write code like

     cerr << autosprintf ("syntax error in %s:%d: %s", filename, line, errstring);

instead of

     cerr << "syntax error in " << filename << ":" << line << ": " << errstring;

   The benefits of the autosprintf syntax are:

   * It reuses the standard POSIX printf facility.  Easy migration from
     C to C++.

   * English sentences are kept together.

   * It makes internationalization possible.  Internationalization
     requires format strings, because in some cases the translator needs
     to change the order of a sentence, and more generally it is easier
     for the translator to work with a single string for a sentence than
     with multiple string pieces.

   * It reduces the risk of programming errors due to forgotten state in
     the output stream (e.g. 'cout << hex;' not followed by 'cout <<
     dec;').