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#include <float.h> #if LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 /* shared by acosl, asinl and atan2l */ #define pio2_hi __pio2_hi #define pio2_lo __pio2_lo extern const long double pio2_hi, pio2_lo; long double __invtrigl_R(long double z); #endif