--- The (l)rint(f) functions call an inline assembly snippet to do the rounding - that does seem to round in the right way, but I'm not sure if that relies on the fpscr being set in the right mode? --- mingw-w64-crt/math/llrint.c | 2 +- mingw-w64-crt/math/llrintf.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mingw-w64-crt/math/llrint.c b/mingw-w64-crt/math/llrint.c index 1fc11e8..d52fd15 100644 --- a/mingw-w64-crt/math/llrint.c +++ b/mingw-w64-crt/math/llrint.c @@ -11,7 +11,7 @@ long long llrint (double x) #if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) __asm__ __volatile__ ("fistpll %0" : "=m" (retval) : "t" (x) : "st"); #else - retval = (long long)x; + retval = x >= 0 ? (long long)floor(x + 0.5) : (long long)ceil(x - 0.5); #endif return retval; } diff --git a/mingw-w64-crt/math/llrintf.c b/mingw-w64-crt/math/llrintf.c index aabd81f..cb2b668 100644 --- a/mingw-w64-crt/math/llrintf.c +++ b/mingw-w64-crt/math/llrintf.c @@ -11,7 +11,7 @@ long long llrintf (float x) #if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) __asm__ __volatile__ ("fistpll %0" : "=m" (retval) : "t" (x) : "st"); #else - retval = (long long)x; + retval = x >= 0 ? (long long)floorf(x + 0.5) : (long long)ceilf(x - 0.5); #endif return retval; } -- 2.7.4 ------------------------------------------------------------------------------ _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public