/usr/include/ITK-4.9/lapack/complex16/ztrevc.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | extern int v3p_netlib_ztrevc_(
char *side,
char *howmny,
v3p_netlib_logical *select,
v3p_netlib_integer *n,
v3p_netlib_doublecomplex *t,
v3p_netlib_integer *ldt,
v3p_netlib_doublecomplex *vl,
v3p_netlib_integer *ldvl,
v3p_netlib_doublecomplex *vr,
v3p_netlib_integer *ldvr,
v3p_netlib_integer *mm,
v3p_netlib_integer *m,
v3p_netlib_doublecomplex *work,
v3p_netlib_doublereal *rwork,
v3p_netlib_integer *info,
v3p_netlib_ftnlen side_len,
v3p_netlib_ftnlen howmny_len
);
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