Signed-off-by: NStefan Weil <sw@weilnetz.de>

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Remove also some macros which are no longer needed.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Change Mac OS X -> macOS

Remove unused code

Signed-off-by: NStefan Weil <sw@weilnetz.de>

That allows removing a dirty hack which used the
non-portable function strcasestr.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

The official name of Apple's desktop / laptop operating system is macOS, not Mac OS X.

Update documentation for installation

Add two build dependencies which were missing and update the hints for
building ScrollView.jar.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Optimize LSTM code for builds without OpenMP

The constant value kNumThreads is not only used to configure the number
of threads but also to allocate vectors used in those threads.

There is only a single thread without OpenMP, so it is sufficient to
allocate vectors with only one element in that case.

Replace also the upper limit in the for loops by the known vector size.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

UNICHARSET: Add missing initialization

The member variable default_sid_ was used without being initialized.

Valgrind report for `tesseract --oem 1 hello.png hello`:

    Conditional jump or move depends on uninitialised value(s)
       at 0x14352E: BITS16::set_bit(unsigned char, unsigned char) (bits16.h:50)
       by 0x143E27: WERD::set_flag(WERD_FLAGS, unsigned char) (werd.h:129)
       by 0x27D053: WERD_RES::SetupWordScript(UNICHARSET const&) (pageres.cpp:381)
       by 0x27CAFD: WERD_RES::SetupForRecognition(UNICHARSET const&, tesseract::Tesseract*, Pix*, int, TBOX const*, bool, bool, bool, ROW*, BLOCK const*) (pageres.cpp:316)
       by 0x145903: tesseract::Tesseract::SetupWordPassN(int, tesseract::WordData*) (control.cpp:182)
       by 0x145780: tesseract::Tesseract::SetupAllWordsPassN(int, TBOX const*, char const*, PAGE_RES*, GenericVector<tesseract::WordData>*) (control.cpp:168)
       by 0x146293: tesseract::Tesseract::recog_all_words(PAGE_RES*, ETEXT_DESC*, TBOX const*, char const*, int) (control.cpp:336)
       by 0x12F356: tesseract::TessBaseAPI::Recognize(ETEXT_DESC*) (baseapi.cpp:878)
       by 0x13036D: tesseract::TessBaseAPI::ProcessPage(Pix*, int, char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1184)
       by 0x13014A: tesseract::TessBaseAPI::ProcessPagesInternal(char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1140)
       by 0x12FBCE: tesseract::TessBaseAPI::ProcessPages(char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1040)
       by 0x12C3DF: main (tesseractmain.cpp:515)
     Uninitialised value was created by a heap allocation
       at 0x4C2C21F: operator new(unsigned long) (vg_replace_malloc.c:334)
       by 0x12D88B: tesseract::TessBaseAPI::Init(char const*, int, char const*, tesseract::OcrEngineMode, char**, int, GenericVector<STRING> const*, GenericVector<STRING> const*, bool, bool (*)(STRING const&, GenericVector<char>*)) (baseapi.cpp:320)
       by 0x12D6DA: tesseract::TessBaseAPI::Init(char const*, char const*, tesseract::OcrEngineMode, char**, int, GenericVector<STRING> const*, GenericVector<STRING> const*, bool) (baseapi.cpp:284)
       by 0x12C088: main (tesseractmain.cpp:440)
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Reduce number of new / delete operations

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Add also several TODO comments because it is not clear why expensive
FLOAT64 calculations are used instead of cheaper FLOAT32 ones.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

README: Add Coverity badge

Signed-off-by: NStefan Weil <sw@weilnetz.de>

opencl: Remove more unused code

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix and improve Dockerfile

* Add comment.
* Add missing packages cmake, curl.
* Update bundler (fixes warning).
* Only clone the latest release of travis-build (save time and disk space).
* Remove empty line at end of file.
Signed-off-by: NStefan Weil <stefan@v2201612906741603.powersrv.de>

EquationDetect: Remove unneeded new / delete operations

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix and clean ccutils/host.h

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Replacing inttypes.h by cinttypes fixes a problem with glibc < 2.18:
In older inttypes.h, the standard C format macros are only defined for
C++ when the macro __STDC_FORMAT_MACROS is set.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

genericvector: Small optimizations

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Several code locations call that method with a normal C string,
so overload it to accept that without a conversion to a STRING
object. This saves unneeded new / memcpy / delete operations.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

automake: Enable all warnings and fix a warning

Fix this automake warning for java/Makefile.am:

    java/Makefile.am:67: warning: user target 'clean' defined here ...
    automake: ... overrides Automake target 'clean' defined here
    java/Makefile.am:67: consider using clean-local instead of clean
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Improve robustness of TessdataManager

Tesseract crashes with an unhandled exception (std::bad_alloc) if it gets
a bad tessdata file where the numEntries data field is very large (also
after swapping), for example 0x77777777.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Issue529

Fix crash if output file could not be opened