isMat - multiple declarations

Enum member isMat

Check whether MatT is a Mat

enum isMat(MatT) = __traits(isSame, TemplateOf!MatT, Mat);

Enum member isMat

Check whether MatT is a Mat with R rows and C columns

enum isMat(ulong R, ulong C, MatT) = MatT.rowLength == R && (MatT.columnLength == C);