include/math.h

510

#define isnan(__x) __isnan(__x)

include/math.h

512

#define isnan(__x) __fpmacro_unary_floating(isnan, __x)

lib/libc/arch/vax/gen/isnan.c

44

#undef isnan

lib/libc/arch/vax/gen/isnan.c

49

isnan(double d)

lib/libm/complex/catrig.c

52

#undef isnan

lib/libm/complex/catrig.c

53

#define isnan(x) ((x) != (x))

lib/libm/complex/catrigf.c

65

#undef isnan

lib/libm/complex/catrigf.c

66

#define isnan(x) ((x) != (x))

lib/libm/complex/catrigl.c

59

#undef isnan

lib/libm/complex/catrigl.c

60

#define isnan(x) ((x) != (x))

lib/libm/src/s_isnan.c

27

isnan(double x)