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a90d9da1d1
fgetwc does not set the stream's error indicator on encoding errors, making ferror insufficient to distinguish between error and eof conditions. feof is also insufficient, since it will return true if the file ended with a partial character encoding error. whether fgetwc should be setting the error indicator itself is a question with conflicting answers. the POSIX text for the function states it as a requirement, but the ISO C text seems to require that it not. this may be revisited in the future based on the outcome of Austin Group issue #1170.
musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/