wvh_is_constant
Tests if a PV‑WAVE variable is a constant.
C Usage
long wvh_is_constant(wvh)
WVH wvh;
FORTRAN Usage
INTEGER*4 LF_WVH_IS_CONSTANT(l_wvh)
INTEGER*4 l_wvh
64-bit UNIX FORTRAN Usage
INTEGER*8 LF_WVH_IS_CONSTANT(l_wvh)
INTEGER*8 l_wvh
Input Parameters
wvh—The Wave variable handle of the variable.
Returned Values
Returns TRUE if the variable is a constant. A constant PV‑WAVE variable can not have its type or value changed. wave_assign_* will fail if you try to assign a value to a PV‑WAVE constant.
On failure, –1 is returned.
Version 2017.1
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