(cache)[C] clang 17.0.1

Ran/Viewed Log

Author

anonymous

24 minutes ago

Language

C

Compiler

clang 17.0.1

Options

Warnings

C11(GNU)

no pedantic

Raw compiler options

-lm

Author

anonymous

24 minutes ago

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#include <stdio.h>

#include <math.h>

#include <fenv.h>

int main(void) {

#if defined(FE_DOWNWARD)

puts("setting rounding mode to FE_DOWNWARD");

if (fesetround(FE_DOWNWARD)) return 1;

#elif defined(FE_TOWARDZERO)

puts("setting rounding mode to FE_TOWARDZERO");

if (fesetround(FE_TOWARDZERO)) return 1;

#else

#error appropriate rounding mode unavailable

#endif

double v = sqrt(4503599761588224.0);

long double vl = sqrtl(4503599761588224.0);

printf("%.40f %.20a\n", v, v);

printf("%.40Lf %.20La\n", vl, vl);

return 0;

}

$ clang prog.c -Wall -Wextra -std=gnu11 -lm

setting rounding mode to FE_DOWNWARD
67108864.9999999850988388061523437500000000000000 0x1.0000003ffffff0000000p+26
67108864.9999999925494194030761718750000000000000 0x8.000001ffffffc0000000p+23

Exit Code:

0