__pure2
intmax_t imaxabs(intmax_t) __pure2;
imaxdiv_t imaxdiv(intmax_t, intmax_t) __pure2;
int __fpclassifyd(double) __pure2;
int __fpclassifyf(float) __pure2;
int __fpclassifyl(long double) __pure2;
int __isfinitef(float) __pure2;
int __isfinite(double) __pure2;
int __isfinitel(long double) __pure2;
int __isinff(float) __pure2;
int __isinf(double) __pure2;
int __isinfl(long double) __pure2;
int __isnormalf(float) __pure2;
int __isnormal(double) __pure2;
int __isnormall(long double) __pure2;
int __signbit(double) __pure2;
int __signbitf(float) __pure2;
int __signbitl(long double) __pure2;
double fabs(double) __pure2;
int ilogb(double) __pure2;
double nan(const char *) __pure2;
double copysign(double, double) __pure2;
double fmax(double, double) __pure2;
double fmin(double, double) __pure2;
int finite(double) __pure2;
int isnanf(float) __pure2;
int ilogbf(float) __pure2;
float fabsf(float) __pure2;
float copysignf(float, float) __pure2;
float nanf(const char *) __pure2;
float fmaxf(float, float) __pure2;
float fminf(float, float) __pure2;
int finitef(float) __pure2;
long double copysignl(long double, long double) __pure2;
long double fabsl(long double) __pure2;
long double fmaxl(long double, long double) __pure2;
long double fminl(long double, long double) __pure2;
int ilogbl(long double) __pure2;
long double nanl(const char *) __pure2;
llabs(long long) __pure2;
lldiv_t lldiv(long long, long long) __pure2;
int abs(int) __pure2;
div_t div(int, int) __pure2;
long labs(long) __pure2;
ldiv_t ldiv(long, long) __pure2;
int ffs(int) __pure2;
int ffsl(long) __pure2;
int ffsll(long long) __pure2;
int fls(int) __pure2;
int flsl(long) __pure2;
int flsll(long long) __pure2;
int getpagesize(void) __pure2;