Test POSIX 1003.1 2016 chapter 13 "Headers".

And fix one thing that this found: apparently <stdlib.h> should also
make the various *WAIT* macros available.

Bug: N/A
Test: builds
Change-Id: Id879bf3c1bddd1170261a809e7280150a74d6b3d
diff --git a/tests/headers/posix/math_h.c b/tests/headers/posix/math_h.c
new file mode 100644
index 0000000..0f8ad2b
--- /dev/null
+++ b/tests/headers/posix/math_h.c
@@ -0,0 +1,346 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <math.h>
+
+#include "header_checks.h"
+
+static void math_h() {
+  TYPE(float_t);
+  TYPE(double_t);
+
+#if !defined(fpclassify)
+#error fpclassify
+#endif
+#if !defined(isfinite)
+#error isfinite
+#endif
+#if !defined(isgreater)
+#error isgreater
+#endif
+#if !defined(isgreaterequal)
+#error isgreaterequal
+#endif
+#if !defined(isinf)
+#error isinf
+#endif
+#if !defined(isless)
+#error isless
+#endif
+#if !defined(islessequal)
+#error islessequal
+#endif
+#if !defined(islessgreater)
+#error islessgreater
+#endif
+#if !defined(isnan)
+#error isnan
+#endif
+#if !defined(isnormal)
+#error isnormal
+#endif
+#if !defined(isunordered)
+#error isunordered
+#endif
+#if !defined(signbit)
+#error signbit
+#endif
+
+  MACRO(M_E);
+  MACRO(M_LOG2E);
+  MACRO(M_LOG10E);
+  MACRO(M_LN2);
+  MACRO(M_LN10);
+  MACRO(M_PI);
+  MACRO(M_PI_2);
+  MACRO(M_PI_4);
+  MACRO(M_1_PI);
+  MACRO(M_2_PI);
+  MACRO(M_2_SQRTPI);
+  MACRO(M_SQRT2);
+  MACRO(M_SQRT1_2);
+
+  MACRO(MAXFLOAT);
+
+  MACRO(HUGE_VAL);
+  MACRO(HUGE_VALF);
+  MACRO(HUGE_VALL);
+  MACRO(INFINITY);
+  MACRO(NAN);
+
+  MACRO(FP_INFINITE);
+  MACRO(FP_NAN);
+  MACRO(FP_NORMAL);
+  MACRO(FP_SUBNORMAL);
+  MACRO(FP_ZERO);
+
+#if defined(FP_FAST_FMA) && FP_FAST_FMA != 1
+#error FP_FAST_FMA
+#endif
+#if defined(FP_FAST_FMAF) && FP_FAST_FMAF != 1
+#error FP_FAST_FMAF
+#endif
+#if defined(FP_FAST_FMAL) && FP_FAST_FMAL != 1
+#error FP_FAST_FMAL
+#endif
+
+  MACRO(FP_ILOGB0);
+  MACRO(FP_ILOGBNAN);
+
+  MACRO_VALUE(MATH_ERRNO, 1);
+  MACRO_VALUE(MATH_ERREXCEPT, 2);
+
+#if !defined(math_errhandling)
+#error math_errhandling
+#endif
+  MACRO_TYPE(int, math_errhandling);
+
+  FUNCTION(acos, double (*f)(double));
+  FUNCTION(acosf, float (*f)(float));
+  FUNCTION(acosh, double (*f)(double));
+  FUNCTION(acoshf, float (*f)(float));
+  FUNCTION(acoshl, long double (*f)(long double));
+  FUNCTION(acosl, long double (*f)(long double));
+
+  FUNCTION(asin, double (*f)(double));
+  FUNCTION(asinf, float (*f)(float));
+  FUNCTION(asinh, double (*f)(double));
+  FUNCTION(asinhf, float (*f)(float));
+  FUNCTION(asinhl, long double (*f)(long double));
+  FUNCTION(asinl, long double (*f)(long double));
+
+  FUNCTION(atan, double (*f)(double));
+  FUNCTION(atan2, double (*f)(double, double));
+  FUNCTION(atan2f, float (*f)(float, float));
+  FUNCTION(atan2l, long double (*f)(long double, long double));
+  FUNCTION(atanf, float (*f)(float));
+  FUNCTION(atanh, double (*f)(double));
+  FUNCTION(atanhf, float (*f)(float));
+  FUNCTION(atanhl, long double (*f)(long double));
+  FUNCTION(atanl, long double (*f)(long double));
+
+  FUNCTION(cbrt, double (*f)(double));
+  FUNCTION(cbrtf, float (*f)(float));
+  FUNCTION(cbrtl, long double (*f)(long double));
+
+  FUNCTION(ceil, double (*f)(double));
+  FUNCTION(ceilf, float (*f)(float));
+  FUNCTION(ceill, long double (*f)(long double));
+
+  FUNCTION(copysign, double (*f)(double, double));
+  FUNCTION(copysignf, float (*f)(float, float));
+  FUNCTION(copysignl, long double (*f)(long double, long double));
+
+  FUNCTION(cos, double (*f)(double));
+  FUNCTION(cosf, float (*f)(float));
+  FUNCTION(cosh, double (*f)(double));
+  FUNCTION(coshf, float (*f)(float));
+  FUNCTION(coshl, long double (*f)(long double));
+  FUNCTION(cosl, long double (*f)(long double));
+
+  FUNCTION(erf, double (*f)(double));
+  FUNCTION(erfc, double (*f)(double));
+  FUNCTION(erfcf, float (*f)(float));
+  FUNCTION(erfcl, long double (*f)(long double));
+  FUNCTION(erff, float (*f)(float));
+  FUNCTION(erfl, long double (*f)(long double));
+
+  FUNCTION(exp, double (*f)(double));
+  FUNCTION(exp2, double (*f)(double));
+  FUNCTION(exp2f, float (*f)(float));
+  FUNCTION(exp2l, long double (*f)(long double));
+  FUNCTION(expf, float (*f)(float));
+  FUNCTION(expl, long double (*f)(long double));
+  FUNCTION(expm1, double (*f)(double));
+  FUNCTION(expm1f, float (*f)(float));
+  FUNCTION(expm1l, long double (*f)(long double));
+
+  FUNCTION(fabs, double (*f)(double));
+  FUNCTION(fabsf, float (*f)(float));
+  FUNCTION(fabsl, long double (*f)(long double));
+
+  FUNCTION(fdim, double (*f)(double, double));
+  FUNCTION(fdimf, float (*f)(float, float));
+  FUNCTION(fdiml, long double (*f)(long double, long double));
+
+  FUNCTION(floor, double (*f)(double));
+  FUNCTION(floorf, float (*f)(float));
+  FUNCTION(floorl, long double (*f)(long double));
+
+  FUNCTION(fma, double (*f)(double, double, double));
+  FUNCTION(fmaf, float (*f)(float, float, float));
+  FUNCTION(fmal, long double (*f)(long double, long double, long double));
+
+  FUNCTION(fmax, double (*f)(double, double));
+  FUNCTION(fmaxf, float (*f)(float, float));
+  FUNCTION(fmaxl, long double (*f)(long double, long double));
+
+  FUNCTION(fmin, double (*f)(double, double));
+  FUNCTION(fminf, float (*f)(float, float));
+  FUNCTION(fminl, long double (*f)(long double, long double));
+
+  FUNCTION(fmod, double (*f)(double, double));
+  FUNCTION(fmodf, float (*f)(float, float));
+  FUNCTION(fmodl, long double (*f)(long double, long double));
+
+  FUNCTION(frexp, double (*f)(double, int*));
+  FUNCTION(frexpf, float (*f)(float, int*));
+  FUNCTION(frexpl, long double (*f)(long double, int*));
+
+  FUNCTION(hypot, double (*f)(double, double));
+  FUNCTION(hypotf, float (*f)(float, float));
+  FUNCTION(hypotl, long double (*f)(long double, long double));
+
+  FUNCTION(ilogb, int (*f)(double));
+  FUNCTION(ilogbf, int (*f)(float));
+  FUNCTION(ilogbl, int (*f)(long double));
+
+  FUNCTION(j0, double (*f)(double));
+  FUNCTION(j1, double (*f)(double));
+  FUNCTION(jn, double (*f)(int, double));
+
+  FUNCTION(ldexp, double (*f)(double, int));
+  FUNCTION(ldexpf, float (*f)(float, int));
+  FUNCTION(ldexpl, long double (*f)(long double, int));
+
+  FUNCTION(lgamma, double (*f)(double));
+  FUNCTION(lgammaf, float (*f)(float));
+  FUNCTION(lgammal, long double (*f)(long double));
+
+  FUNCTION(llrint, long long (*f)(double));
+  FUNCTION(llrintf, long long (*f)(float));
+  FUNCTION(llrintl, long long (*f)(long double));
+
+  FUNCTION(llround, long long (*f)(double));
+  FUNCTION(llroundf, long long (*f)(float));
+  FUNCTION(llroundl, long long (*f)(long double));
+
+  FUNCTION(log, double (*f)(double));
+  FUNCTION(log10, double (*f)(double));
+  FUNCTION(log10f, float (*f)(float));
+  FUNCTION(log10l, long double (*f)(long double));
+  FUNCTION(log1p, double (*f)(double));
+  FUNCTION(log1pf, float (*f)(float));
+  FUNCTION(log1pl, long double (*f)(long double));
+  FUNCTION(log2, double (*f)(double));
+  FUNCTION(log2f, float (*f)(float));
+  FUNCTION(log2l, long double (*f)(long double));
+  FUNCTION(logb, double (*f)(double));
+  FUNCTION(logbf, float (*f)(float));
+  FUNCTION(logbl, long double (*f)(long double));
+  FUNCTION(logf, float (*f)(float));
+  FUNCTION(logl, long double (*f)(long double));
+
+  FUNCTION(lrint, long (*f)(double));
+  FUNCTION(lrintf, long (*f)(float));
+  FUNCTION(lrintl, long (*f)(long double));
+
+  FUNCTION(lround, long (*f)(double));
+  FUNCTION(lroundf, long (*f)(float));
+  FUNCTION(lroundl, long (*f)(long double));
+
+  FUNCTION(modf, double (*f)(double, double*));
+  FUNCTION(modff, float (*f)(float, float*));
+  FUNCTION(modfl, long double (*f)(long double, long double*));
+
+  FUNCTION(nan, double (*f)(const char*));
+  FUNCTION(nanf, float (*f)(const char*));
+  FUNCTION(nanl, long double (*f)(const char*));
+
+  FUNCTION(nearbyint, double (*f)(double));
+  FUNCTION(nearbyintf, float (*f)(float));
+  FUNCTION(nearbyintl, long double (*f)(long double));
+
+  FUNCTION(nextafter, double (*f)(double, double));
+  FUNCTION(nextafterf, float (*f)(float, float));
+  FUNCTION(nextafterl, long double (*f)(long double, long double));
+
+  FUNCTION(nexttoward, double (*f)(double, long double));
+  FUNCTION(nexttowardf, float (*f)(float, long double));
+  FUNCTION(nexttowardl, long double (*f)(long double, long double));
+
+  FUNCTION(pow, double (*f)(double, double));
+  FUNCTION(powf, float (*f)(float, float));
+  FUNCTION(powl, long double (*f)(long double, long double));
+
+  FUNCTION(remainder, double (*f)(double, double));
+  FUNCTION(remainderf, float (*f)(float, float));
+  FUNCTION(remainderl, long double (*f)(long double, long double));
+
+  FUNCTION(remquo, double (*f)(double, double, int*));
+  FUNCTION(remquof, float (*f)(float, float, int*));
+  FUNCTION(remquol, long double (*f)(long double, long double, int*));
+
+  FUNCTION(rint, double (*f)(double));
+  FUNCTION(rintf, float (*f)(float));
+  FUNCTION(rintl, long double (*f)(long double));
+
+  FUNCTION(round, double (*f)(double));
+  FUNCTION(roundf, float (*f)(float));
+  FUNCTION(roundl, long double (*f)(long double));
+
+  FUNCTION(scalbln, double (*f)(double, long));
+  FUNCTION(scalblnf, float (*f)(float, long));
+  FUNCTION(scalblnl, long double (*f)(long double, long));
+
+  FUNCTION(scalbn, double (*f)(double, int));
+  FUNCTION(scalbnf, float (*f)(float, int));
+  FUNCTION(scalbnl, long double (*f)(long double, int));
+
+  FUNCTION(sin, double (*f)(double));
+  FUNCTION(sinf, float (*f)(float));
+  FUNCTION(sinh, double (*f)(double));
+  FUNCTION(sinhf, float (*f)(float));
+  FUNCTION(sinhl, long double (*f)(long double));
+  FUNCTION(sinl, long double (*f)(long double));
+
+  FUNCTION(sqrt, double (*f)(double));
+  FUNCTION(sqrtf, float (*f)(float));
+  FUNCTION(sqrtl, long double (*f)(long double));
+
+  FUNCTION(tan, double (*f)(double));
+  FUNCTION(tanf, float (*f)(float));
+  FUNCTION(tanh, double (*f)(double));
+  FUNCTION(tanhf, float (*f)(float));
+  FUNCTION(tanhl, long double (*f)(long double));
+  FUNCTION(tanl, long double (*f)(long double));
+
+  FUNCTION(tgamma, double (*f)(double));
+  FUNCTION(tgammaf, float (*f)(float));
+  FUNCTION(tgammal, long double (*f)(long double));
+
+  FUNCTION(trunc, double (*f)(double));
+  FUNCTION(truncf, float (*f)(float));
+  FUNCTION(truncl, long double (*f)(long double));
+
+  FUNCTION(y0, double (*f)(double));
+  FUNCTION(y1, double (*f)(double));
+  FUNCTION(yn, double (*f)(int, double));
+
+  int s = signgam;
+}