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2020-11-11Add nonnull and nullable attributes to APIDavid Robillard1-0/+8
This will warn if NULL is passed to any nonnull-annotated parameter, and is also supported by sanitizers which can check for violations at runtime. Unfortunately, it is currently only supported by clang. GCC has a similar feature in the nonnull attribute, but this has a different syntax (it's a function attribute) and is more dangerous since it is used by the optimizer to assume a null pointer is undefined behavior. This one just warns and still allows code to handle the situation gracefully, which I think is more appropriate for a library API. Note that this optimization behavior is not some unlikely edge case: switching these attributes to the GCC one will break release builds.
2020-11-09Add a test for reading strings with no trailing newlineDavid Robillard1-0/+23
2020-11-09Split out reader and writer testsDavid Robillard1-0/+329