Fix pgbench's parsing of double values to notice trailing garbage.

Noted by Fabien Coelho, though this isn't exactly his proposed patch.
(The technique used here is borrowed from the zic sources.)

diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
index a4841656fa568c9731e28201e1b1df25644ab25f..f3c1a0e41598e74d2171150d05a7bf7c63df6e09 100644 (file)
--- a/src/bin/pgbench/pgbench.c
+++ b/src/bin/pgbench/pgbench.c
@@ -928,8 +928,9 @@ makeVariableNumeric(Variable *var)
    else /* type should be double */
    {
        double dv;
+       char xs;
 
-       if (sscanf(var->value, "%lf", &dv) != 1)
+       if (sscanf(var->value, "%lf%c", &dv, &xs) != 1)
        {
            fprintf(stderr,
                    "malformed variable \"%s\" value: \"%s\"\n",