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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Compiler Warning (level 1) C4228

Error Message

nonstandard extension used : qualifiers after comma in declarator list are ignored

Use of qualifiers like const or volatile after a comma when declaring variables is a Microsoft extension (/Ze).


// C4228.cpp
// compile with: /W1
int j, const i = 0;  // C4228
int k;
int const m = 0;  // ok
int main()

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