没有看明白的微软 UCRT 文档

没有看明白的微软 UCRT 文档

Beginning with the UCRT in Visual Studio 2015 and Windows 10, snprintf is no longer identical to _snprintf. The snprintf behavior is now C99 standard conformant. The difference is that if you run out of buffer, snprintf null-terminates the end of the buffer and returns the number of characters that would have been required whereas _snprintf doesn’t null-terminate the buffer and returns -1. Also, snprintf()（这里的 snprintf() 是不是写错了，应该是 _snprintf() 吧？） includes one more character in the output because it doesn’t null-terminate the buffer.

参考网址： snprintf, _snprintf, _snprintf_l, _snwprintf, _snwprintf_l