Fix Clang 10 -Werror,-Wimplicit-int-float-conversion

Desktop / LibreOffice - Stephan Bergmann [redhat.com] - 13 August 2019 06:22 EDT

> idlc/source/astexpression.cxx:330:68: error: implicit conversion from 'sal_Int32' (aka 'int') to 'float' changes value from 2147483647 to 2147483648 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.fval < SAL_MIN_INT32 || ev->u.fval > SAL_MAX_INT32) > ~ ^~~~~~~~~~~~~ > include/sal/types.h:209:32: note: expanded from macro 'SAL_MAX_INT32' > #define SAL_MAX_INT32 ((sal_Int32) 0x7FFFFFFF) > ^~~~~~~~~~~~~~~~~~~~~~~ > idlc/source/astexpression.cxx:414:58: error: implicit conversion from 'sal_uInt32' (aka 'unsigned int') to 'float' changes value from 4294967295 to 4294967296 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.fval < 0.0 || ev->u.fval > SAL_MAX_UINT32) > ~ ^~~~~~~~~~~~~~ > include/sal/types.h:210:32: note: expanded from macro 'SAL_MAX_UINT32' > #define SAL_MAX_UINT32 ((sal_uInt32) 0xFFFFFFFF) > ^~~~~~~~~~~~~~~~~~~~~~~ > idlc/source/astexpression.cxx:492:68: error: implicit conversion from 'sal_Int64' (aka 'long') to 'float' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.fval < SAL_MIN_INT64 || ev->u.fval > SAL_MAX_INT64) > ~ ^~~~~~~~~~~~~ > include/sal/types.h:212:32: note: expanded from macro 'SAL_MAX_INT64' > #define SAL_MAX_INT64 ((sal_Int64) SAL_CONST_INT64(0x7FFFFFFFFFFFFFFF)) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > idlc/source/astexpression.cxx:501:68: error: implicit conversion from 'sal_Int64' (aka 'long') to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.dval < SAL_MIN_INT64 || ev->u.dval > SAL_MAX_INT64) > ~ ^~~~~~~~~~~~~ > include/sal/types.h:212:32: note: expanded from macro 'SAL_MAX_INT64' > #define SAL_MAX_INT64 ((sal_Int64) SAL_CONST_INT64(0x7FFFFFFFFFFFFFFF)) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > idlc/source/astexpression.cxx:574:58: error: implicit conversion from 'sal_uInt64' (aka 'unsigned long') to 'float' changes value from 18446744073709551615 to 18446744073709551616 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.fval < 0.0 || ev->u.fval > SAL_MAX_UINT64) > ~ ^~~~~~~~~~~~~~ > include/sal/types.h:213:32: note: expanded from macro 'SAL_MAX_UINT64' > #define SAL_MAX_UINT64 ((sal_uInt64) SAL_CONST_UINT64(0xFFFFFFFFFFFFFFFF)) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > idlc/source/astexpression.cxx:583:58: error: implicit conversion from 'sal_uInt64' (aka 'unsigned long') to 'double' changes value from 18446744073709551615 to 18446744073709551616 [-Werror,-Wimplicit-int-float-conversion] > if (ev->u.dval < 0.0 || ev->u.dval > SAL_MAX_UINT64) > ~ ^~~~~~~~~~~~~~ > include/sal/types.h:213:32: note: expanded from macro 'SAL_MAX_UINT64' > #define SAL_MAX_UINT64 ((sal_uInt64) SAL_CONST_UINT64(0xFFFFFFFFFFFFFFFF)) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Consitently use the new o3tl::convertsToAtLeast/Most(o3tl::roundAway(...), ...) for all cases in coerce_value that check that a floating-point value falls into an integer range, even those that don't cause a warning.

The new idlc/test/parser/conversion.tests is deliberately left out of unoidl/CustomTarget_unoidl-write_test.mk. as unoidl-write doesn't support such conversions from floating-point to integer types.

Change-Id: Ie00923e665f2bcb306e1e328614c75b9247512ee Reviewed-on: https://gerrit.libreoffice.org/77353

a3ee2c625ef7 Fix Clang 10 -Werror,-Wimplicit-int-float-conversion
idlc/CustomTarget_parser_test.mk | 6 +++
idlc/source/astexpression.cxx | 71 ++++++++++++++++++++++++-------
idlc/test/parser/conversion.tests | 79 +++++++++++++++++++++++++++++++++++
include/o3tl/float_int_conversion.hxx | 57 +++++++++++++++++++++++++
4 files changed, 199 insertions(+), 14 deletions(-)

Upstream: cgit.freedesktop.org


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