c++ - Suppress C4189 in Visual Studio for each -

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i'm working on visual studio 2013 , got simple loop

for each (const std::string &foo in stringlist) {      /*things happen here foo never used for*/ }

in loop pop n elements list dont use foo here , got c4189 warning (w4) want suppress here.

i looked around , found several solutions like

for each (const std::string &foo in stringlist) {      (void)foo;     /*things happen here foo never used for*/ }

or define solutions #define unused __pragma(warning(suppress:4189))

personally define solution, seems not work in loop because still got warning if use define.

so question:

is there way suppress warning without setting compiler flags? don't want use line inside loop suppress warning.


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