#pragma once
// __clang_cuda_(c)math(.h) also provide `abs` which actually belong in
// cstdlib. We could split them out but for now we just include cstdlib from
// cmath.h which is what the systems I've seen do as well.
#include <cstdlib>
#include <math.h>
double acos(double);
float acos(float);
double acosh(double);
float acosh(float);
double asin(double);
float asin(float);
double asinh(double);
float asinh(float);
double atan2(double, double);
float atan2(float, float);
double atan(double);
float atan(float);
double atanh(double);
float atanh(float);
double cbrt(double);
float cbrt(float);
double ceil(double);
float ceil(float);
double copysign(double, double);
float copysign(float, float);
double cos(double);
float cos(float);
double cosh(double);
float cosh(float);
double erfc(double);
float erfc(float);
double erf(double);
float erf(float);
double exp2(double);
float exp2(float);
double exp(double);
float exp(float);
double expm1(double);
float expm1(float);
double fdim(double, double);
float fdim(float, float);
double floor(double);
float floor(float);
double fma(double, double, double);
float fma(float, float, float);
double fmax(double, double);
float fmax(float, float);
float max(float, float);
double max(double, double);
double fmin(double, double);
float fmin(float, float);
float min(float, float);
double min(double, double);
double fmod(double, double);
float fmod(float, float);
int fpclassify(double);
int fpclassify(float);
double frexp(double, int *);
float frexp(float, int *);
double hypot(double, double);
float hypot(float, float);
int ilogb(double);
int ilogb(float);
bool isfinite(long double);
bool isfinite(double);
bool isfinite(float);
bool isgreater(double, double);
bool isgreaterequal(double, double);
bool isgreaterequal(float, float);
bool isgreater(float, float);
bool isinf(long double);
bool isinf(double);
bool isinf(float);
bool isless(double, double);
bool islessequal(double, double);
bool islessequal(float, float);
bool isless(float, float);
bool islessgreater(double, double);
bool islessgreater(float, float);
bool isnan(long double);
#ifdef USE_ISNAN_WITH_INT_RETURN
int isnan(double);
int isnan(float);
#else
bool isnan(double);
bool isnan(float);
#endif
bool isnormal(double);
bool isnormal(float);
bool isunordered(double, double);
bool isunordered(float, float);
double ldexp(double, int);
float ldexp(float, int);
double lgamma(double);
float lgamma(float);
long long llrint(double);
long long llrint(float);
double log10(double);
float log10(float);
double log1p(double);
float log1p(float);
double log2(double);
float log2(float);
double logb(double);
float logb(float);
double log(double);
float log(float);
long lrint(double);
long lrint(float);
long lround(double);
long lround(float);
long long llround(float); // No llround(double).
double modf(double, double *);
float modf(float, float *);
double nan(const char *);
float nanf(const char *);
double nearbyint(double);
float nearbyint(float);
double nextafter(double, double);
float nextafter(float, float);
double pow(double, double);
double pow(double, int);
float pow(float, float);
float pow(float, int);
double remainder(double, double);
float remainder(float, float);
double remquo(double, double, int *);
float remquo(float, float, int *);
double rint(double);
float rint(float);
double round(double);
float round(float);
double scalbln(double, long);
float scalbln(float, long);
double scalbn(double, int);
float scalbn(float, int);
bool signbit(double);
bool signbit(float);
long double sin(long double);
double sin(double);
float sin(float);
double sinh(double);
float sinh(float);
double sqrt(double);
float sqrt(float);
double tan(double);
float tan(float);
double tanh(double);
float tanh(float);
double tgamma(double);
float tgamma(float);
double trunc(double);
float trunc(float);
namespace std {
using ::acos;
using ::acosh;
using ::asin;
using ::asinh;
using ::atan;
using ::atan2;
using ::atanh;
using ::cbrt;
using ::ceil;
using ::copysign;
using ::cos;
using ::cosh;
using ::erf;
using ::erfc;
using ::exp;
using ::exp2;
using ::expm1;
using ::fdim;
using ::floor;
using ::fma;
using ::fmax;
using ::fmin;
using ::fmod;
using ::fpclassify;
using ::frexp;
using ::hypot;
using ::ilogb;
using ::isfinite;
using ::isgreater;
using ::isgreaterequal;
using ::isinf;
using ::isless;
using ::islessequal;
using ::islessgreater;
using ::isnan;
using ::isnormal;
using ::isunordered;
using ::ldexp;
using ::lgamma;
using ::llrint;
using ::log;
using ::log10;
using ::log1p;
using ::log2;
using ::logb;
using ::lrint;
using ::lround;
using ::llround;
using ::modf;
using ::nan;
using ::nanf;
using ::nearbyint;
using ::nextafter;
using ::pow;
using ::remainder;
using ::remquo;
using ::rint;
using ::round;
using ::scalbln;
using ::scalbn;
using ::signbit;
using ::sin;
using ::sinh;
using ::sqrt;
using ::tan;
using ::tanh;
using ::tgamma;
using ::trunc;
} // namespace std
#define FP_NAN 0
#define FP_INFINITE 1
#define FP_ZERO 2
#define FP_SUBNORMAL 3
#define FP_NORMAL 4
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