fluke-dmm: Remove device-specific float precision helper

The Fluke DMM driver has a helper function that determines the
precision of a float. This functionality is now provided by strutil.

Signed-off-by: Andreas Sandberg <redacted>

diff --git a/src/hardware/fluke-dmm/protocol.c b/src/hardware/fluke-dmm/protocol.c
index 848374a4f8b465bf37df13424125a2256c9f8b61..5683ffeac881bc964ca82ba9f7cdb590a5f80ed1 100644 (file)
--- a/src/hardware/fluke-dmm/protocol.c
+++ b/src/hardware/fluke-dmm/protocol.c
@@ -26,28 +26,6 @@
 #include "libsigrok-internal.h"
 #include "protocol.h"
 
-static int count_digits(const char *str)
-{
-       int digits;
-
-       if (*str == '-' || *str == '+')
-               str++;
-
-       while (*str >= '0' && *str <= '9')
-               str++;
-
-       digits = 0;
-       if (*str == '.') {
-               str++;
-               while (*str >= '0' && *str <= '9') {
-                       str++;
-                       digits++;
-               }
-       }
-
-       return digits;
-}
-
 static void handle_qm_18x(const struct sr_dev_inst *sdi, char **tokens)
 {
        struct dev_context *devc;
@@ -84,12 +62,11 @@ static void handle_qm_18x(const struct sr_dev_inst *sdi, char **tokens)
                while (*e && *e != ' ')
                        e++;
                *e++ = '\0';
-               if (sr_atof_ascii(tokens[1], &fvalue) != SR_OK) {
+               if (sr_atof_ascii_digits(tokens[1], &fvalue, &digits) != SR_OK) {
                        /* Happens all the time, when switching modes. */
                        sr_dbg("Invalid float: '%s'", tokens[1]);
                        return;
                }
-               digits = count_digits(tokens[1]);
        }
        while (*e && *e == ' ')
                e++;
@@ -312,11 +289,11 @@ static void handle_qm_19x_data(const struct sr_dev_inst *sdi, char **tokens)
                 * is rather problematic, we'll cut through this here. */
                fvalue = NAN;
        } else {
-               if (sr_atof_ascii(tokens[0], &fvalue) != SR_OK || fvalue == 0.0) {
+               if (sr_atof_ascii_digits(tokens[0], &fvalue, &digits) != SR_OK ||
+                   fvalue == 0.0) {
                        sr_err("Invalid float '%s'.", tokens[0]);
                        return;
                }
-               digits = count_digits(tokens[0]);
        }
 
        devc = sdi->priv;