Article View: comp.std.c++
Article #1720Re: Why no conversion of string to const char * in STD lib?
From: Rick Hollinbeck
Date: Sun, 13 Aug 1995 23:11
Date: Sun, 13 Aug 1995 23:11
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Don & (bashford@toad.scripps.edu) wrote: : According to Plauger's book on the Draft Standard C++ library, : there is no "operator const char *" for the string class. : This means that you cannot do things like, : string filename; : // ... : ofstream ofile(filename); : Alot of my code has things like this (I have been using the : String class of libg++) and I suspect this is rather common : apparently we will all have to change to: : ofstream ofile(filename.c_str()); : which will be incompatable with any other string class that : does not have a c_str function (String of libg++ does not). : Is there any compelling reason for not having the conversion : to const char* as part of the standard? : Don Bashford : bashford@scripps.edu >From what I understand, the const char* conversion operator would trigger too many implicit type conversions in certain situations, leading to many unpleasant surprises. the c_str() member is a way to control this. (See Plauger's recent article in the C/C++ Users Journal which discusses this.)
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Path: arc1-ca.pugleaf.net!128.32.155.1!matt From: rickh@csn.net (Rick Hollinbeck) Newsgroups: comp.std.c++ Subject: Re: Why no conversion of string to const char * in STD lib? Date: 13 Aug 1995 23:11:31 GMT Organization: SuperNet Inc. (303)-296-8202 Denver Colorado Approved: matt@physics2.Berkeley.EDU (Matt Austern) Message-ID: <MATT.95Aug13161131@physics2.Berkeley.EDU> References: <BASHFORD.95Aug1200815@toad.scripps.edu> NNTP-Posting-Host: physics2.berkeley.edu