New GCC 5.0 hits problem with narrowing in list-initializers

[Deleted user]

Originally reported on Google Code with ID 26

Following errors are produced by GCC compiler:

c++ -MMD -MF obj/third_party/cld_2/src/internal/cld2_static.cld_generated_cjk_uni_prop_80.o.d
-DV8_DEPRECATION_WARNINGS -D_FILE_OFFSET_BITS=64 -DCHROMIUM_BUILD -DTOOLKIT_VIEWS=1
-DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_ASH=1 -DUSE_PANGO=1 -DUSE_CAIRO=1
-DUSE_DEFAULT_RENDER_THEME=1 -DUSE_LIBJPEG_TURBO=1 -DUSE_X11=1 -DUSE_CLIPBOARD_AURAX11=1
-DENABLE_ONE_CLICK_SIGNIN -DENABLE_PRE_SYNC_BACKUP -DENABLE_REMOTING=1 -DENABLE_WEBRTC=1
-DENABLE_PEPPER_CDMS -DENABLE_CONFIGURATION_POLICY -DENABLE_NOTIFICATIONS -DUSE_UDEV
-DDONT_EMBED_BUILD_METADATA -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1 -DENABLE_PLUGINS=1
-DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_AUTOFILL_DIALOG=1 -DENABLE_BACKGROUND=1
-DENABLE_GOOGLE_NOW=1 -DCLD_VERSION=2 -DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1
-DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1
-DENABLE_APP_LIST=1 -DENABLE_SETTINGS_APP=1 -DENABLE_SUPERVISED_USERS=1 -DENABLE_MDNS=1
-DENABLE_SERVICE_DISCOVERY=1 -DV8_USE_EXTERNAL_STARTUP_DATA -DUSE_LIBPCI=1 -DUSE_GLIB=1
-DUSE_NSS=1 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -Igen -I../../third_party/cld_2/src/internal
-I../../third_party/cld_2/src/public -fstack-protector --param=ssp-buffer-size=4  -pthread
-fno-strict-aliasing -Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden
-pipe -fPIC -B/home/marxin/Programming/chromium/src/third_party/binutils/Linux_x64/Release/bin
-Wno-unused-local-typedefs -Wno-format -Wno-unused-result -m64 -march=x86-64 -O2 -fno-ident
-fdata-sections -ffunction-sections -funwind-tables -fno-exceptions -fno-rtti -fno-threadsafe-statics
-fvisibility-inlines-hidden -Wno-deprecated -std=gnu++11 -Wno-narrowing -Wno-literal-suffix
 -c ../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc -o obj/third_party/cld_2/src/internal/cld2_static.cld_generated_cjk_uni_prop_80.o
-Wno-narrowing
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
 };
 ^
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
../../third_party/cld_2/src/internal/cld_generated_cjk_uni_prop_80.cc:7089:1: error:
narrowing conversion of ‘-14’ from ‘int’ to ‘CLD2::uint8 {aka unsigned char}’ inside
{ }
... (and many more)

Problem is more discussed in following thread: https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/D5YxoMmtEmE
I think fix is quite obvious, generator should produce just uint8 numbers.

Thanks,
Martin

Reported by marxin.liska on 2015-01-05 10:34:02

[Deleted user]

Good morning, 
GCC 5.1 is now released and the check/error "narrowing conversion" is still here.
I would vote like Martin to fix the generator. 
Kindly
WT.

Reported by William.Tambellini on 2015-06-11 14:58:37

[Deleted user]

riesa@, any chance we could get the generator code checked in and start iterating on
it? Issue 33 is tracking that.

Reported by andrewhayden@google.com on 2015-06-11 15:53:55

• Blocked on: #33