| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
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Learn more about: Compiler Warning (level 1) C4548 |
Compiler Warning (level 1) C4548 |
11/04/2016 |
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2cee817e-e463-4d90-bbd2-de120d48c101 |
expression before comma has no effect; expected expression with side-effect
The compiler detected an ill-formed comma expression.
This warning is off by default. For more information, see Compiler Warnings That Are Off by Default.
The following sample generates C4548:
// C4548.cpp
// compile with: /W1
#pragma warning (default : 4548)
int main()
{
int i = 0, k = 0;
if ( i, k ) // C4548
// try the following line instead
// if ( i = 0, k )
i++;
}