/usr/include/libspreadsheet-1.12/spreadsheet/complex.h is in gnumeric 1.12.18-2.
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 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | /* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
#ifndef _GNM_COMPLEX_H_
# define _GNM_COMPLEX_H_
#include "numbers.h"
#include <goffice/goffice.h>
#include <math.h>
G_BEGIN_DECLS
#ifdef GNM_WITH_LONG_DOUBLE
#define complex_t GOComplexl
#define complex_init go_complex_initl
#define complex_add go_complex_addl
#define complex_sub go_complex_subl
#define complex_mul go_complex_mull
#define complex_div go_complex_divl
#define complex_mod go_complex_modl
#define complex_angle go_complex_anglel
#define complex_real go_complex_reall
#define complex_real_p go_complex_real_pl
#define complex_zero_p go_complex_zero_pl
#define complex_conj go_complex_conjl
#define complex_exp go_complex_expl
#define complex_ln go_complex_lnl
#define complex_sqrt go_complex_sqrtl
#define complex_sin go_complex_sinl
#define complex_cos go_complex_cosl
#define complex_tan go_complex_tanl
#define complex_pow go_complex_powl
#define complex_scale_real go_complex_scale_reall
#define complex_to_polar go_complex_to_polarl
#define complex_from_polar go_complex_from_polarl
#else
#define complex_t GOComplex
#define complex_init go_complex_init
#define complex_add go_complex_add
#define complex_sub go_complex_sub
#define complex_mul go_complex_mul
#define complex_div go_complex_div
#define complex_mod go_complex_mod
#define complex_angle go_complex_angle
#define complex_real go_complex_real
#define complex_real_p go_complex_real_p
#define complex_zero_p go_complex_zero_p
#define complex_conj go_complex_conj
#define complex_exp go_complex_exp
#define complex_ln go_complex_ln
#define complex_sqrt go_complex_sqrt
#define complex_sin go_complex_sin
#define complex_cos go_complex_cos
#define complex_tan go_complex_tan
#define complex_pow go_complex_pow
#define complex_scale_real go_complex_scale_real
#define complex_to_polar go_complex_to_polar
#define complex_from_polar go_complex_from_polar
#endif
/* ------------------------------------------------------------------------- */
char *complex_to_string (complex_t const *src, char imunit);
int complex_from_string (complex_t *dst, char const *src, char *imunit);
int complex_invalid_p (complex_t const *src);
/* ------------------------------------------------------------------------- */
G_END_DECLS
#endif /* _GNM_COMPLEX_H_ */
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