wvh_sizeofdata
Returns the size in bytes of the data area of a PV‑WAVE variable.
C Usage
long wvh_sizeofdata(wvh)
WVH wvh;
FORTRAN Usage
INTEGER*4 LF_WVH_SIZEOFDATA(l_wvh)
INTEGER*4 l_wvh
64-bit UNIX FORTRAN Usage
INTEGER*8 LF_WVH_SIZEOFDATA(l_wvh)
INTEGER*8 l_wvh
Input Parameters
wvh—The Wave variable handle of the variable.
Returned Values
Returns the size in bytes of the data area of the variable. Note that for scalar strings, wvh_sizeofdata returns the size of a (char *) and for string arrays, wvh_sizeofdata returns wvh_nelems*sizeof(char *). To get the length of the actual string, you must get the data pointer and use the PV‑WAVE STRLEN function or some other method of finding the length of the string pointed to by the data pointer.
On failure, –1 is returned.
