From c56f53a2a04577f6e84ac96477fc8dc804d544ef Mon Sep 17 00:00:00 2001 From: Fabian Schriever Date: Wed, 11 Mar 2020 10:58:05 +0100 Subject: Fix truncf for sNaN input Make line 47 in sf_trunc.c reachable. While converting the double precision function trunc to the single precision version truncf an error was introduced into the special case. This special case is meant to catch both NaNs and infinities, however qNaNs and infinities work just fine with the simple return of x (line 51). The only error occurs for sNaNs where the same sNaN is returned and no invalid exception is raised. --- newlib/libm/common/sf_trunc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/newlib/libm/common/sf_trunc.c b/newlib/libm/common/sf_trunc.c index 74ea933..8eb0554 100644 --- a/newlib/libm/common/sf_trunc.c +++ b/newlib/libm/common/sf_trunc.c @@ -42,7 +42,7 @@ } else { - if (exponent_less_127 == 255) + if (exponent_less_127 == 128) /* x is NaN or infinite. */ return x + x; -- cgit v1.1