Hi,
I've tested this with 64-bit gcc-11.3.0 and (both 32-bit and 64-bit)
gcc-13.1.0 nad am seeing the same brokenness.
The demo:
/****************/
/* isfinite.c */
#include <stdio.h>
#include <math.h>
#include <quadmath.h>
int main(void) {
__float128 x = 1.0Q;
if(isfinite(x)) printf("OK\n");
else printf("NOT ok\n");
return 0;
}
/*
Build with:
gcc -o isfinite.exe isfinite.c -lquadmath
*/
/**************/
It builds without any warnings being issued, but the resultant executable
takes about 4 seconds to run and produces no output.
It works fine if I cast the variable 'x' to a long double.
That is, it works fine if I replace:
if(isfinite(x)) printf("OK\n");
with:
if(isfinite((long double)x)) printf("OK\n");
Is this a mingw-w64 bug or a gcc bug ?
Cheers,
Rob
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