Copy general matrix

SGECPY/DGECPY/CGECPY/ZGECPY

n < 0

lda < max(m,1) ldb too small

Actual character arguments in a subroutine call can be longer than the corresponding dummy arguments. Therefore, readability of the CALL statement may be improved by coding the trans argument as ’NORMAL’ or ’NON-TRANSPOSED’ for ’N’, ’TRANSPOSED’ for ’T’, or ’CONJUGATE-TRANSPOSED’ for ’C’.

Chapter 3 Basic Matrix Operations 221