On Mon, 2022-07-18 at 13:19 +0300, Povilas Kanapickas wrote: > By the way, does the current assumption actually break in practice, that > is, are there compilers for which ASCII text will not encode to a subset > of ISO-8859-1? I assume you mean "Are there compilers for which narrow/multibyte string literals will not encode to a subset of ISO-8859-1?" In that case, I haven't researched the matter and don't know of a system for which this is a problem off the top of my head.
Note that if we're unwilling to bump compiler requirements to C11, there are still a couple options. GCC has the -fexec-charset option to specify what encoding "ordinary" string literals should be in; we can set this to ISO-8859-1 when building SANE, but this won't be portable to compilers without this option. We could also define a macro that's compatible with older compilers like this: #if __STDC_VERSION__ >= 201112L #define SANE_STRING(X) u8##X #else #define SANE_STRING(X) X #endif Lastly, iconv() is always an option.
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