Preparsing sprintf format strings

Ross Ridge rridge@csclub.uwaterloo.ca
Fri Oct 12 12:26:00 GMT 2007


rridge@csclub.uwaterloo.ca (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.

					Ross Ridge




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