这个网站可以显示出所有 C++ template function 的实例有趣
https://cppinsights.io/lnk?code=I2luY2x1ZGUgPHR5cGVfdHJhaXRzPgojaW5jbHVkZSA8Y2Fzc2VydD4KCnRlbXBsYXRlPHR5cGVuYW1lIFQ+CmF1dG8gZ2V0VmFsdWUoVCB0KQp7CiBpZiBjb25zdGV4cHIoc3RkOjppc19wb2ludGVyX3Y8VD4pIHsKIGFzc2VydChudWxscHRyICE9IHQpOwogcmV0dXJuKnQ7CiB9IGVsc2UgewogcmV0dXJuIHQ7CiB9Cn0KCnZvaWQgVXNlKCkKewogaW50IGkgPSA0OwogaW50KmlwID0gJmk7CgogYXV0byBpdiA9IGdldFZhbHVlKGkpOwogYXV0byBpcHYgPSBnZXRWYWx1ZShpcCk7CiBhdXRvIGl0diA9IGdldFZhbHVlKDQzKTsKfQ==&insightsOptions=cpp17&std=cpp17&rev=1.0
#cpp
#include <type_traits> #include <cassert> template<typename T> auto getValue(T t) { if constexpr(s
Simon Chan