json: Remove write-only variable from json_lex_number().

diff --git a/lib/json.c b/lib/json.c
index d26c89e..b08540e 100644 (file)
--- a/lib/json.c
+++ b/lib/json.c
@@ -607,7 +607,6 @@ json_lex_number(struct json_parser *p)
     const char *cp = ds_cstr(&p->buffer);
     unsigned long long int significand = 0;
     struct json_token token;
-    int sig_digits = 0;
     bool imprecise = false;
     bool negative = false;
     int pow10 = 0;
@@ -621,7 +620,6 @@ json_lex_number(struct json_parser *p)
     /* At least one integer digit, but 0 may not be used as a leading digit for
      * a longer number. */
     significand = 0;
-    sig_digits = 0;
     if (*cp == '0') {
         cp++;
         if (isdigit(*cp)) {
@@ -632,7 +630,6 @@ json_lex_number(struct json_parser *p)
         do {
             if (significand <= ULLONG_MAX / 10) {
                 significand = significand * 10 + (*cp - '0');
-                sig_digits++;
             } else {
                 pow10++;
                 if (*cp != '0') {
@@ -656,7 +653,6 @@ json_lex_number(struct json_parser *p)
         do {
             if (significand <= ULLONG_MAX / 10) {
                 significand = significand * 10 + (*cp - '0');
-                sig_digits++;
                 pow10--;
             } else if (*cp != '0') {
                 imprecise = true;
@@ -719,12 +715,10 @@ json_lex_number(struct json_parser *p)
     if (!imprecise) {
         while (pow10 > 0 && significand < ULLONG_MAX / 10) {
             significand *= 10;
-            sig_digits++;
             pow10--;
         }
         while (pow10 < 0 && significand % 10 == 0) {
             significand /= 10;
-            sig_digits--;
             pow10++;
         }
         if (pow10 == 0