C++ (Cpp) fpconv_g_fmt Examples

Example #1

File: lua_cjson.c Project: boruis/cocos2dx-classical

static void json_append_number(lua_State *l, json_config_t *cfg,
                               strbuf_t *json, int lindex)
{
    double num = lua_tonumber(l, lindex);
    int len;

    if (cfg->encode_invalid_numbers == 0) {
        /* Prevent encoding invalid numbers */
        if (isinf(num) || isnan(num))
            json_encode_exception(l, cfg, json, lindex, "must not be NaN or Inf");
    } else if (cfg->encode_invalid_numbers == 1) {
        /* Encode invalid numbers, but handle "nan" separately
         * since some platforms may encode as "-nan". */
        if (isnan(num)) {
            strbuf_append_mem(json, "nan", 3);
            return;
        }
    } else {
        /* Encode invalid numbers as "null" */
        if (isinf(num) || isnan(num)) {
            strbuf_append_mem(json, "null", 4);
            return;
        }
    }

    strbuf_ensure_empty_length(json, FPCONV_G_FMT_BUFSIZE);
    len = fpconv_g_fmt(strbuf_empty_ptr(json), num, cfg->encode_number_precision);
    strbuf_extend_length(json, len);
}

Example #2

File: lua_cjson.c Project: ocelot-inc/tarantool

static void json_append_number(struct luaL_serializer *cfg, strbuf_t *json,
                   lua_Number num)
{
    if (isnan(num)) {
    strbuf_append_mem(json, "nan", 3);
    return;
    }

    int len;
    strbuf_ensure_empty_length(json, FPCONV_G_FMT_BUFSIZE);
    len = fpconv_g_fmt(strbuf_empty_ptr(json), num, cfg->encode_number_precision);
    strbuf_extend_length(json, len);
}

Example #3

File: lua_cjson.c Project: bGN4/LuaVM

static void json_append_number(lua_State *l, json_config_t *cfg,
                               strbuf_t *json, int lindex)
{
    int len;
#if LUA_VERSION_NUM >= 503
    if (lua_isinteger(l, lindex)) {
        lua_Integer num = lua_tointeger(l, lindex);
        strbuf_ensure_empty_length(json, FPCONV_G_FMT_BUFSIZE); /* max length of int64 is 19 */
        len = sprintf(strbuf_empty_ptr(json), LUA_INTEGER_FMT, num);
        strbuf_extend_length(json, len);
        return;
    }
#endif
    double num = lua_tonumber(l, lindex);

    if (cfg->encode_invalid_numbers == 0) {
        /* Prevent encoding invalid numbers */
        if (isinf(num) || isnan(num))
            json_encode_exception(l, cfg, json, lindex,
                                  "must not be NaN or Infinity");
    } else if (cfg->encode_invalid_numbers == 1) {
        /* Encode NaN/Infinity separately to ensure Javascript compatible
         * values are used. */
        if (isnan(num)) {
            strbuf_append_mem(json, "NaN", 3);
            return;
        }
        if (isinf(num)) {
            if (num < 0)
                strbuf_append_mem(json, "-Infinity", 9);
            else
                strbuf_append_mem(json, "Infinity", 8);
            return;
        }
    } else {
        /* Encode invalid numbers as "null" */
        if (isinf(num) || isnan(num)) {
            strbuf_append_mem(json, "null", 4);
            return;
        }
    }

    strbuf_ensure_empty_length(json, FPCONV_G_FMT_BUFSIZE);
    len = fpconv_g_fmt(strbuf_empty_ptr(json), num, cfg->encode_number_precision);
    strbuf_extend_length(json, len);
}