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Re: Preparsing sprintf format strings
- From: rridge at csclub dot uwaterloo dot ca (Ross Ridge)
- To: gcc at gcc dot gnu dot org
- Date: Fri, 12 Oct 2007 08:26:13 -0400 (EDT)
- Subject: Re: Preparsing sprintf format strings
firstname.lastname@example.org (Ross Ridge) writes:
> The entire parsing of the format string is affected by the multi-byte
> character encoding. I don't know how GCC would be able tell that a byte
> with the same value as '%' in the middle of string would actually be
> interpreted as '%' character rather than a part of an extended multibyte
> character. This can easily happen with the ISO 2022-JP encoding.
Andreas Schwab writes:
> The compiler is supposed to know the encoding of the strings.
The compiler can't in general know what encoding that printf, fprintf,
and sprintf will use to parse the string. It's locale dependent.