Mercurial > mxe-octave
view src/build-msvctools/math/nextafterf.c @ 3061:f8299bb6c872
Initial support for native MSVC compilation.
* add MSVC support files: compiler wrappers and support libraries
* adapt libiconv to work with MSVC
* adapt gettext to work with MSVC
author | Michael Goffioul <michael.goffioul@gmail.com> |
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date | Mon, 17 Jun 2013 22:43:11 -0400 |
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#include <math.h> float nextafterf (float x, float y) { union { float f; unsigned int i; } u; if (isnan (y) || isnan (x)) return x + y; if (x == y ) /* nextafter (0.0, -O.0) should return -0.0. */ return y; u.f = x; if (x == 0.0F) { u.i = 1; return y > 0.0F ? u.f : -u.f; } if (((x > 0.0F) ^ (y > x)) == 0) u.i++; else u.i--; return u.f; }