extern void abort (void); double fmax (double, double); float fmaxf (float, float); double fmin (double, double); float fminf (float, float); #define isnan __builtin_isnan #define isinf __builtin_isinf #define NAN __builtin_nan ("") #define INFINITY __builtin_inf () #define DEF_MAXMIN(TYPE,FUN)\ void test_##FUN (TYPE *__restrict__ r, TYPE *__restrict__ a,\ TYPE *__restrict__ b)\ {\ int i;\ for (i = 0; i < 4; i++)\ r[i] = FUN (a[i], b[i]);\ }\ DEF_MAXMIN (float, fmaxf) DEF_MAXMIN (double, fmax) DEF_MAXMIN (float, fminf) DEF_MAXMIN (double, fmin) int main () { float a_f[4] = { 4, NAN, -3, INFINITY }; float b_f[4] = { 1, 7,NAN, 0 }; float r_f[4]; double a_d[4] = { 4, NAN, -3, INFINITY }; double b_d[4] = { 1, 7, NAN, 0 }; double r_d[4]; test_fmaxf (r_f, a_f, b_f); if (r_f[0] != 4 || isnan (r_f[1]) || isnan (r_f[2]) || !isinf (r_f[3])) abort (); test_fminf (r_f, a_f, b_f); if (r_f[0] != 1 || isnan (r_f[1]) || isnan (r_f[2]) || isinf (r_f[3])) abort (); test_fmax (r_d, a_d, b_d); if (r_d[0] != 4 || isnan (r_d[1]) || isnan (r_d[2]) || !isinf (r_d[3])) abort (); test_fmin (r_d, a_d, b_d); if (r_d[0] != 1 || isnan (r_d[1]) || isnan (r_d[2]) || isinf (r_d[3])) abort (); return 0; }