include/math.h

110

#define isunordered(x, y) (isnan(x) || isnan(y))

lib/libc/gen/isnan.c

47

__strong_alias(isnan, __isnan);

lib/libexpat/lib/xmlparse.c

3073

|| isnan(maximumAmplificationFactor)

lib/libexpat/lib/xmlparse.c

3095

|| isnan(maximumAmplificationFactor)

lib/libm/src/b_exp__D.c

89

if (isnan(x)) /* x is NaN */

lib/libm/src/e_scalb.c

35

if (isnan(x)||isnan(fn)) return x*fn;

lib/libm/src/e_scalbf.c

32

if (isnan(x)||isnan(fn)) return x*fn;

lib/libm/src/ld80/e_expl.c

102

if( isnan(x) )

lib/libm/src/ld80/e_log10l.c

128

if( isnan(x) )

lib/libm/src/ld80/e_log2l.c

123

if( isnan(x) )

lib/libm/src/ld80/e_logl.c

122

if( isnan(x) )

lib/libm/src/ld80/e_powl.c

217

if( isnan(x) )

lib/libm/src/ld80/e_powl.c

219

if( isnan(y) )

lib/libm/src/ld80/e_tgammal.c

227

if( isnan(x) )

lib/libm/src/ld80/s_log1pl.c

119

if( isnan(xm1) )

lib/libm/src/s_fdim.c

36

if (isnan(x)) \

lib/libm/src/s_fdim.c

38

if (isnan(y)) \

lib/libm/src/s_fmax.c

35

if (isnan(x))

lib/libm/src/s_fmax.c

37

if (isnan(y))

lib/libm/src/s_fmaxf.c

34

if (isnan(x))

lib/libm/src/s_fmaxf.c

36

if (isnan(y))

lib/libm/src/s_fmaxl.c

34

if (isnan(x))

lib/libm/src/s_fmaxl.c

36

if (isnan(y))

lib/libm/src/s_fmin.c

35

if (isnan(x))

lib/libm/src/s_fmin.c

37

if (isnan(y))

lib/libm/src/s_fminf.c

34

if (isnan(x))

lib/libm/src/s_fminf.c

36

if (isnan(y))

lib/libm/src/s_fminl.c

34

if (isnan(x))

lib/libm/src/s_fminl.c

36

if (isnan(y))

lib/libm/src/s_round.c

39

if (isinf(x) || isnan(x))

lib/libm/src/s_roundf.c

37

if (isinf(x) || isnan(x))

regress/lib/libc/ldexp/ldexp_test.c

67

assert(isnan(f));

regress/lib/libc/ldexp/ldexp_test.c

71

assert(isnan(f));

regress/lib/libc/modf/modf_test.c

50

assert(isnan(i));

regress/lib/libc/modf/modf_test.c

52

assert(isnan(f));

regress/lib/libc/modf/modf_test.c

56

assert(isnan(i));

regress/lib/libc/modf/modf_test.c

58

assert(isnan(f));

regress/lib/libm/cephes/testvect.c

355

int isnan (double);

regress/lib/libm/cephes/testvect.c

371

{"isnan", isnan, &NAN, 1},

regress/lib/libm/cephes/testvect.c

372

{"isnan", isnan, &INF, 0},

regress/lib/libm/cephes/testvect.c

373

{"isnan", isnan, &ZERO, 0},

regress/lib/libm/cephes/testvect.c

374

{"isnan", isnan, &MZERO, 0},

regress/lib/libm/cephes/testvect.c

458

if( isnan(v.d) && isnan(u.d) )

regress/lib/libm/cephes/testvect.c

501

if( isnan(v.d) && isnan(u.d) )

regress/lib/libm/cephes/testvect.c

504

if( isnan(v.d) )

regress/lib/libm/cephes/testvect.c

506

if( isnan(u.d) )

regress/lib/libm/lgamma/lgamma.c

17

assert(isnan(lgamma(NAN)));

regress/lib/libm/lgamma/lgamma.c

18

assert(isnan(lgammaf(NAN)));

regress/lib/libm/modf/modf_test.c

26

assert(isnan(i));

regress/lib/libm/modf/modf_test.c

28

assert(isnan(f));

regress/lib/libm/modf/modf_test.c

32

assert(isnan(i));

regress/lib/libm/modf/modf_test.c

34

assert(isnan(f));

regress/lib/libm/modf/modf_test.c

54

assert(isnan(i));

regress/lib/libm/modf/modf_test.c

56

assert(isnan(f));

regress/lib/libm/modf/modf_test.c

60

assert(isnan(i));

regress/lib/libm/modf/modf_test.c

62

assert(isnan(f));

regress/lib/libm/msun/csqrt_test.c

184

ATF_CHECK(isnan(cimagl(t_csqrt(CMPLXL(INFINITY, NAN)))));

regress/lib/libm/msun/csqrt_test.c

186

ATF_CHECK(isnan(creall(t_csqrt(CMPLXL(-INFINITY, NAN)))));

regress/lib/libm/msun/fmaxmin_test.c

62

long double expected_max = isnan(big) ? small : big;

regress/lib/libm/msun/fmaxmin_test.c

63

long double expected_min = isnan(small) ? big : small;

regress/lib/libm/msun/nan_test.c

69

ATF_REQUIRE(isnan(af[0]));

regress/lib/libm/msun/nan_test.c

82

ATF_REQUIRE(isnan(ad[0]));

regress/lib/libm/msun/nan_test.c

95

ATF_REQUIRE(isnan(ald[0]));

regress/lib/libm/msun/rem_test.c

115

ATF_CHECK(isnan(remainder(x, y)));

regress/lib/libm/msun/rem_test.c

116

ATF_CHECK(isnan(remquo(x, y, &q)));

regress/lib/libm/msun/rem_test.c

121

ATF_CHECK(isnan(remainderf(x, y)));

regress/lib/libm/msun/rem_test.c

122

ATF_CHECK(isnan(remquof(x, y, &q)));

regress/lib/libm/msun/rem_test.c

127

ATF_CHECK(isnan(remainderl(x, y)));

regress/lib/libm/msun/rem_test.c

128

ATF_CHECK(isnan(remquol(x, y, &q)));

regress/lib/libm/msun/test-utils.h

111

if (isnan(x) && isnan(y))

regress/lib/libm/msun/test-utils.h

126

if (isnan(x) && isnan(y))

regress/lib/libm/nextafter/nextafter.c

12

(isnan((f)) && isnan((r))) \

regress/lib/libm/tgamma/tgamma.c

49

return isnan(x);

usr.bin/awk/lib.c

912

if (isnan(r) && s[0] == '-' && signbit(r) == 0)

usr.bin/awk/run.c

893

x_is_nan = isnan(x->fval);

usr.bin/awk/run.c

894

y_is_nan = isnan(y->fval);

usr.bin/awk/tran.c

419

} else if (isnan(d)) {

usr.bin/sort/coll.c

1053

return (d == NAN || isnan(d));

usr.bin/sort/coll.c

1055

return (isnan(d));