[previous] 1251 [next] Suffixed integer constant causes implicit conversion of other operand.
Arithmetic type - Balancing

A suffixed integer constant is one operand of a binary operator for which type balancing occurs. Message 1251 is generated to identify the fact that this constant causes the other (non-constant) operand to undergo an implicit type conversion.

Note that the type of an integer constant depends on its value and the implemented size of an int (e.g. whether it is a 16 bit or 32 bit quantity ) as well as the presence of suffixes. More ...

For example: 


/*PRQA S 1278,2017,2104,2213,3120,3227,3408,3602 ++*/


extern void foo( signed char sca, int sia )
{
    if ( sca < 12U )   { }                  /* Message 1251 + 3760 - Implicit conversion int to unsigned int */
    if ( sia < 1234U ) { }                  /* Message 1251 + 3760 - Implicit conversion int to unsigned int */
}

QA·C Source Code Analyser 8.1.2
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