Engineering and Scientific Subroutine Library for AIX Version 3 Release 3: Guide and Reference

|Migrating ESSL Version 3 Programs to Version 3 Release 3

|This section describes all the aspects of migrating your ESSL Version 3 |application programs to Version 3 Release 3.

|Note:

For a list of the new features added in ESSL Version 3 Release 3, see What's New for ESSL Version 3 Release 3. |

|

• |No changes to your FORTRAN or C application programs are required if you |are migrating from ESSL Version 3 Release 2 to ESSL Version 3 Release |3.
• |Changes may be required in your C++ application programs. The ESSL Version 3 Release |2 header file inconsistently declared output scalar arguments in the function |prototypes. Some were declared to be type reference and some as |pointers. In ESSL Version 3 Release 3, by default all scalar output |arguments are declared to be type reference; optionally, you may choose |to have all scalar output arguments declared as pointers (see Output Scalar Arguments).

  |If you used any of the following subroutines in your C++ application |program, you will need to make updates to your application program and/or |compilation procedures:
  |_ROTG
  |_GEFCD
  |_PPFCD
  |_POFCD
  |_PPICD
  |_POICD
  |_GELLS
  |_PINT
  |_CSINT
  |_PTNQ
  |_URAND
  |_NRAND
  |_URXOR
  |STRIDE
  |DSRSM
  

• |AIX 5L for POWER Version 5.1, with service, provides a more |scalable application binary interface for 64-bit applications. To take |advantage of the scalability improvements to 64-bit programs, all 64-bit |applications and libraries must be recompiled on AIX 5L for POWER Version |5.1, with service. |

|ESSL Subroutines

|The calling sequences for the subroutines in ESSL Version 3 Release 2 and |ESSL Version 3 Release 3 are identical.