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Previously there was no guarantee that the tests that check for out of memory
handling behavior are actually correct - e.g. that they correctly simulate out
of memory conditions.
Now every simulated out of memory condition has to be "guarded" using
CHECK_ALLOC_FAIL. It makes sure that every piece of code that is supposed to
cause out-of-memory does so, and that no other code runs out of memory
unnoticed.
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We currently don't allocate/modify any state so there are no issues with this.
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When parsing XPath variables, we need to perform a heap allocation; if it
fails, an xpath_exception instead of bad_alloc used to be thrown.
Now we throw the exception of a correct type so that xpath_exception means
'parsing error'.
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This provides more coverage for #17.
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Base directory is now using target basename.
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Disable/change some tests for some compilers; use binary float comparison
for early MSVC versions.
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Rename PAGE_SIZE to page_size to avoid define conflict with Android SDK.
Minor fixes in several tests.
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Previously we omitted extra whitespace for single PCDATA/CDATA children, but in
mixed content there was extra indentation before/after text nodes.
One of the problems with that is that the text that you saved is not exactly
the same as the parsing result using default flags (parse_trim_pcdata helps).
Another problem is that parse-format cycles do not have a fixed point for mixed
content - the result expands indefinitely. Some XML libraries, like Python
minidom, have the same issue, but this is definitely a problem.
Pretty-printing mixed content is hard. It seems that the only other sensible
choice is to switch mixed content nodes to raw formatting. In a way the code in
this change is a weaker version of that - it removes indentation around text
nodes but still keeps it around element siblings/children.
Thus we can switch to mixed-raw formatting at some point later, which will be
a superset of the current behavior.
To do this we have to either switch at the first text node (.NET XmlDocument
does that), or scan the children of each element for a possible text node and
switch before we output the first child.
The former behavior seems non-intuitive (and a bit broken); unfortunately, the
latter behavior can cost up to 20% of the output time for trees *without* mixed
content.
Fixes #13.
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data/truncation.xml was corrupted at some point and was not actually valid.
Fix the file and make the test fail if we can't parse truncation.xml at all.
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With the current setup it successfully finds the (fixed) DOCTYPE buffer overrun
in ~50 minutes (on a single core).
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This prevents malformed PI value from breaking the document structure.
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Remove size=0 test since a better test is already there.
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Also change the error code to status_io_error
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Also add new tests for translate. These are technically redundant since other
tests would catch the bug with the fixed comparison, but more tests is better.
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Align allocations to right end of page boundary to catch buffer overruns,
instead of unmapping on deallocations mark the page as no-access to guarantee
a page fault on use-after-free.
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This prevents malformed input XML with very deeply recursive DOCTYPE sections
from crashing the parser.
Fixes #29.
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The current code is not optimal; since users actually read samples/tests
change them to use faster (and shorter!) code.
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Also include math.h to fix issues on some compilers.
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We test min/max and several different mantissas for the entire exponent range
for both float and double.
It's not clear whether all supported compilers provide an implementation of
sprintf/strtod that supports roundtripping so we may need to disable some of
these tests in the future.
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These only do basic testing to make sure the paths are covered and trivial
values work.
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Make float/double round-trip
This change also adds xml_text::set and xml_attribute::set_value overloads for float so that float is only printed using just enough digits to represent float, instead of enough digits to represent double.
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It's sufficient to define PUGIXML_HEADER_ONLY anywhere now, source is included
automatically.
This is a second attempt; this time it includes a workaround for QMake bug
that caused it to generate incorrect Makefile.
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Unfortunately, standard headers on MinGW32 insist on undefining off64_t
and _wfopen extensions if __STRICT_ANSI__ is true (e.g. C++11 mode). This
leads to compilation errors since b7a1fec started to use _wfopen in strict
mode. That change erroneously checked GCC version - however, the version
itself is irrelevant; the actual criteria is whether mingw64 runtime is
used.
off64_t is not useful on MinGW32 since we only need it to open large files
on 64-bit platforms; unfortunately, the lack of _wfopen means we won't be
able to support wide-char paths on Windows for MinGW32.
Fixes #24.
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Since MinGW 4.5 does not define these functions if __STRICT_ANSI__ is defined
(in case of _wfopen it defines it inconsistently between stdio.h and wchar.h)
use the baseline functions for MinGW 4.5 and earlier.
Fixes #23.
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node_copy_string relied on the fact that target node had an empty name and
value. Normally this is a safe assumption (and a good one to make since it
makes copying faster), however it was not checked and there was one case when
it did not hold.
Since we're reusing the logic for inserting nodes, newly inserted declaration
nodes had the name set automatically to xml, which in our case violates the
assumption and is counter-productive since we'll override the name right after
setting it.
For now the best solution is to do the same insertion manually - that results
in some code duplication that we can refactor later (same logic is partially
shared by _move variants anyway so on a level duplicating is not that bad).
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Some compilers don't handle NaNs properly.
Some compilers don't implement fmod in a IEEE-compatible way.
Some compilers have exception handling codegen bugs (DMC...).
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This should completely eliminate the confusion between load and load_file.
Of course, for compatibility reasons we have to preserve the old variant -
it will be deprecated in a future version and subsequently removed.
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The behavior on OSX is different - we don't get a I/O error so the test is
useless.
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Computed offsets for documents with nodes that were added using append_buffer
or newly appended nodes without name/value information were invalid.
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Calling memcpy(x, 0, 0) is technically undefined (although it should usually
be a no-op).
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added some tests to force invalid buffer and size = 0
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This lets us do fewer null pointer checks (making printing 2% faster with -O3)
and removes a lot of function calls (making printing 20% faster with -O0).
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To get more benefits from constant predicate/filter optimization we rewrite
[position()=expr] predicates into [expr] for numeric expressions. Right now
the rewrite is only for entire expressions - it may be beneficial to split
complex expressions like [position()=constant and expr] into [constant][expr]
but that is more complicated.
last() does not depend on the node set contents so is "constant" as far as
our optimization is concerned so we can evaluate it once.
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If a filter/predicate expression is a constant, we don't need to evaluate it
for every nodeset element - we can evaluate it once and pick the right element
or keep/discard the entire collection.
If the expression is 1, we can early out on first node when evaluating the
node set - queries like following::item[1] are now significantly faster.
Additionally this change refactors filters/predicates to have additional
metadata describing the expression type in _test field that is filled during
optimization.
Note that predicate_constant selection right now is very simple (but captures
most common use cases except for maybe [last()]).
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