C++ 如何禁用缩小转换警告？
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How to disable narrowing conversion warnings?
提问by klm123
I use -Walland 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).
我使用-Wall并更新到新的 gcc 我有很多warning: narrowing conversion. 我想禁用它们，但保持所有其他警告不变（理想情况下）。
I can find nothing about narrowingin http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
我narrowing在http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html 中找不到任何相关信息
How to disable narrowing conversion warnings? Is it possible at all?
如何禁用缩小转换警告？有可能吗？
P.S.
聚苯乙烯
I need to Disable warnings, not fix them in the source code.
Blind
-Wno-conversiondoesn't help.
我需要禁用警告，而不是在源代码中修复它们。
盲
-Wno-conversion也没用。
回答by Stryck
As gx_ said, adding -Wno-narrowingto your command line should ignore those errors. Encountered this myself when upgrading to C++0x.
正如 gx_ 所说，添加-Wno-narrowing到命令行应该忽略这些错误。升级到 C++0x 时自己遇到了这个问题。
回答by Ben
As a small FYI, as detailed on https://clang.llvm.org/docs/DiagnosticsReference.html#wnarrowingthis is an alias for -Wno-c++11-narrowing (there are multiple narrowing warning flags)
作为一个小的仅供参考，如https://clang.llvm.org/docs/DiagnosticsReference.html#wnarrowing 所述，这是 -Wno-c++11-narrowing 的别名（有多个缩小警告标志）
