fix float parsing logic for long decimal expansions

[musl] / src / internal / floatscan.c

diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c
index 68f576c..bba5753 100644 (file)
--- a/src/internal/floatscan.c
+++ b/src/internal/floatscan.c
@@ -199,11 +199,11 @@ static long double decfloat(FILE *f, int c, int bits, int emin, int sign, int po
                }
                if (carry) {
                        rp += 9;
+                       a = (a-1 & MASK);
                        if (a == z) {
                                z = (z-1 & MASK);
                                x[z-1 & MASK] |= x[z];
                        }
-                       a = (a-1 & MASK);
                        x[a] = carry;
                }
        }