return [args = hana::make_tuple(std::forward<Args>(args) ...)]()mutable{ return hana::unpack(std::move(args), [](auto&& ... args){ // use args }); }; } 通过函数capture_call简化解决方法可能很有用: #include <tuple> // Capture args and add them as additional arguments template...
auto mytuple = std::make_tuple(10, 'a'); std::tuple_element<0, decltype(mytuple)>::type first = std::get<0>(mytuple); std::tuple_element<1, decltype(mytuple)>::type second = std::get<1>(mytuple); } { // std::tuple_size: Class template designed to access the number of...
struct是专门用于结构体与数据流转换的库, 我们用到的主要方法是pack()和unpack(). pack()的使用说明如下: struct.pack(fmt, v1, v2, …) Return a string containing the values v1, v2, … packed according to the given format. The arguments must match the values required by the format exactly....
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import marshal import struct import time import binascii import dis import types def print_metadata(f): magic = struct.unpack('<i', f.read(4))[0] bit_filed = f.read(4) flag = 'timestamp' if int.from_bytes(bit_filed, 'little'): flag = 'hash' print(f"flag = {binascii.hexlify...
Python - Update Tuples Python - Unpack Tuples Python - Loop Tuples Python - Join Tuples Python - Tuple Methods Python - Tuple Exercises Python Sets Python - Sets Python - Access Set Items Python - Add Set Items Python - Remove Set Items Python - Loop Sets Python - Join Sets Python -...
Unpack the string (presumably packed by pack(fmt, ...)) according to the given format. The result is a tuple even if it contains exactly one item. The string must contain exactly the amount of data required by the format (len(string) must equal calcsize(fmt)). ...
zip method, as discussed earlier, helps to combine multiple iterable elements. On the other hand, the "*" operator is the unpacking operator that helps unpack iterable elements into separate values or arguments. It can be used for many contexts, e.g., function calls, list creations, assignmen...
}throwstd::runtime_error("new(): invalid arguments"); } 大致过程是这样的:torch.Tensor(3,2) ===>>> new_with_sizes ===>>> r.intlist(0) ===>>> PythonArgs::intlist ===>>> intlistWithDefault ===>>>inline int64_t THPUtils_unpackIndex===>>>THPUtils_unpackLong ...