refactor(deps): Internallize strtod (using the ryu2 code)

CMakeLists.txt

@@ -848,6 +848,7 @@ if(UA_ENABLE_JSON_ENCODING)
                             ${PROJECT_SOURCE_DIR}/src/ua_types_encoding_json.h)
     list(APPEND lib_sources ${PROJECT_SOURCE_DIR}/deps/cj5.c
                             ${PROJECT_SOURCE_DIR}/deps/parse_num.c
+                            ${PROJECT_SOURCE_DIR}/deps/strtod.c
                             ${PROJECT_SOURCE_DIR}/src/ua_types_encoding_json.c
                             ${PROJECT_SOURCE_DIR}/src/pubsub/ua_pubsub_networkmessage_json.c)
 endif()

deps/README.md

@@ -20,4 +20,5 @@ The following third party libraries may be included -- depending on the activate
 | ziptree         | MPL 2.0          | Reusable zip tree implementation                |
 | mqtt-c          | MIT              | a portable MQTT client in C                     |
 | dtoa            | BSL (Boost)      | Printing of float numbers                       |
+| strtod          | BSL (Boost)      | Parsing of float numbers                        |
 | mp_printf       | MIT              | Our version of github:mpaland/printf            |

deps/parse_num.c

@@ -22,10 +22,6 @@
 
 #include "parse_num.h"
 
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-
 size_t
 parseUInt64(const char *str, size_t size, uint64_t *result) {
     size_t i = 0;
@@ -95,17 +91,3 @@ parseInt64(const char *str, size_t size, int64_t *result) {
     }
     return len + i;
 }
-
-size_t parseDouble(const char *str, size_t size, double *result) {
-    char buf[2000];
-    if(size >= 2000)
-        return 0;
-    memcpy(buf, str, size);
-    buf[size] = 0;
-    errno = 0;
-    char *endptr;
-    *result = strtod(str, &endptr);
-    if(errno != 0 && errno != ERANGE)
-        return 0;
-    return (uintptr_t)endptr - (uintptr_t)str;
-}