Gabriel Dos Reis - Re: gcc 3.2 compilation problem] (original) (raw)

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• From: Gabriel Dos Reis
• To: Paul Marculescu
• Cc: libstdc++ at gcc dot gnu dot org
• Date: 18 Nov 2002 18:35:58 +0100
• Subject: Re: gcc 3.2 compilation problem]
• Organization: Integrable Solutions
• References: <3DD92385.6010500@gecadsoftware.com>

Paul Marculescu mpaul@gecadsoftware.com writes:

| Hello. | | I just upgraded to gcc3.2 and I'm trying to compile this code: | | ------------------- cut here --------------------- | | #include | #include | #include | #include <iostream | | using namespace std; | | std::string& lower( std::string& p_str ) | { | std::transform( p_str.begin(), p_str.end(), p_str.begin(), tolower ); ^^^^^^^

This ought to be a FAQ.

Three facts:

1. std::tolower (resp. std::toupper) is an overloaded function.
2. C++ has no type for the set of overloaded functions.
3. Template-argument deduction works by unifying the argument type with function parameter types.

by point 2), point 3) cannot succeed, hence the error.

-- Gaby

• Follow-Ups:
  • Re: gcc 3.2 compilation problem]
    * From: Benjamin Kosnik
• References:
  • gcc 3.2 compilation problem]
    * From: Paul Marculescu