chore: rename endptr to tmp_ptr to avoid confusion with argument

Author: Alvaro-Kothe

pandas/_libs/src/parser/tokenizer.c

@@ -1674,20 +1674,20 @@ double precise_xstrtod(const char *str, char **endptr, char decimal, char sci,
     // move past scientific notation
     p++;
 
-    char *endptr;
+    char *tmp_ptr;
     errno = 0;
-    long int n = strtol(p, &endptr, 10);
+    long int n = strtol(p, &tmp_ptr, 10);
 
     if (errno == ERANGE || checked_add(exponent, n, &exponent)) {
       errno = 0;
       exponent = n;
     }
 
     // If no digits after the 'e'/'E', un-consume it.
-    if (endptr == p)
+    if (tmp_ptr == p)
       p--;
     else
-      p = endptr;
+      p = tmp_ptr;
   }
 
   if (exponent > 308) {