HP UX Fortran Software Writing HP-UX applications 107, Calling C routines from HP Fortran 110

Vectorization		103
Using the +Ovectorize option		103
Controlling vectorization locally		104
Calling BLAS library routines		105
Controlling code generation for performance		106
7 Writing HP-UX applications		107
Accessing command-line arguments		107
Calling HP-UX system and library routines		108
Using HP-UX file I/O		108
Stream I/O using FSTREAM		108
Performing I/O using HP-UX system calls		108
Establishing a connection to a file		108
Obtaining an HP-UX file descriptor		109
8 Calling C routines from HP Fortran		110
Data types		110
Unsigned integers		111
Logicals		111
Complex numbers		112
Derived types		113
Pointers		113
Argument-passing conventions		113
Case sensitivity		114
Arrays		116
Memory layout of a two-dimensional array in Fortran and C		116
C strings		118
C null-terminated string		118
Fortran hidden length argument		118
Passing a string		118
File handling		120
Sharing data		122
9 Using Fortran directives		123
Directive syntax		123
Using HP Fortran directives		123
$HP$ ALIAS		124
$HP$ CHECK_OVERFLOW		126
$HP$ LIST		127
$HP$ OPTIMIZE		127
Compatibility	directives	128
Controlling	vectorization	128
Controlling parallelization		129
Controlling dependence checks		129
Controlling checks for side effects		129
10 Migrating to HP Fortran		131
Incompatibilities with HP FORTRAN 77		131
Compiler limits		131
Command-line options not supported		131
Format field widths		132
Floating-point constants		132
Intrinsic functions		132
Procedure calls and definitions		133
Data types and constants		133
Input/output		134
Directives		134

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