mpc_cmp_abs: Make the documentation clearer.

* doc/mpc.texi [mpc_cmp_abs]: Modify the description for NaN arguments.

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/mpc.texi b/doc/mpc.texi
index 1ca5957..6286347 100644
--- a/doc/mpc.texi
+++ b/doc/mpc.texi
@@ -799,11 +799,12 @@ with @code{mpc_cmp (op1, op2) == 0}.
 @deftypefn Function int mpc_cmp_abs (mpc_t @var{op1}, mpc_t @var{op2})
 
 Compare the absolute values of @var{op1} and @var{op2}.
-The return value is 0 if both are the same (including Infinity),
+The return value is 0 if both are the same (including infinity),
 positive if the absolute value of @var{op1} is greater than that of @var{op2},
 and negative if it is smaller.
 If @var{op1} or @var{op2} has a real or imaginary part which is NaN,
-the return value is that of @code{mpfr_cmp (NaN, NaN)}.
+the function behaves like @code{mpfr_cmp} on two real numbers of which at least
+one is NaN.
 @end deftypefn