How to disable narrowing conversion warnings?

问题

I use -Wall and updating to new gcc I have got a lot of warning: narrowing conversion. I want to disable them, but leave all other warnings untouched (ideally).

I can find nothing about narrowing in http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html

How to disable narrowing conversion warnings? Is it possible at all?

P.S.

1. I need to Disable warnings, not fix them in the source code.

2. Blind -Wno-conversion doesn't help.

回答1:

As gx_ said, adding -Wno-narrowing to your command line should ignore those errors. Encountered this myself when upgrading to C++0x.

来源：https://stackoverflow.com/questions/20302595/how-to-disable-narrowing-conversion-warnings