Recent questions tagged struct

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What I've written is: typedef enum _MyStatus { MY_STATUS_OK = 0, MY_STATUS_GENERAL_ERROR = -1, } MyStatus; typedef ... handled in C? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - Converting a sniffed scapy packet to bytes

When sniffing packets with scapy I can save them to a variable sniffed = sniff(count=1) Now I would like to ... is actually 0x00 and not 0x27 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct in C: Error storage size of 'params' isn't known

I'm a bit new to C and I'm having a bit of trouble with a project I'm currently working on. Essentially I ... ; and typedef struct foo {...}; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - How to implement the C flexible array member pattern in Rust?

I would like to implement this C code which uses a flexible array member (sometimes called the struct hack) in Rust ... do such thing in Rust. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - python ctypes pragma pack for byte aligned read

I have a C++ application with below structure written to file. Now I need to unmarshal them using python, The ... , does not delve into details. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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490 views

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struct - Dynamical access to nested fields in Matlab

(How) Can I dynamically access nested fields in Matlab? I was thinking about a test case like this one: a = struct; ... a.(place{1}).(place{2}) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - Access C Array within blocks (variable array count) Objective-C

Blocks are fine but what about writing C arrays? Given this simplified situation: CGPoint points[10]; [myArray ... get the full functionality? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - Go Interface Fields

I'm familiar with the fact that, in Go, interfaces define functionality, rather than data. You put a set of ... I be doing it differently? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - C programming: Dereferencing pointer to incomplete type error

I have a struct defined as: struct { char name[32]; int size; int start; int popularity; } stasher_file; and ... newFile. What am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - N-ary trees in C

Which would be a neat implemenation of a N-ary tree in C language? Particulary, I want to implement an n ... [MAX_LENGTH]; int required_time; }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

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struct - Python: writing to memory in a single operation

I'm writing a userspace driver for accessing FPGA registers in Python 3.5 that mmaps the FPGA's PCI address ... access before data is written. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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struct - Can we implement ANSI C's `offsetof` in Delphi?

For reference: The offsetof macro(!) takes a struct data type and a member of the specified struct as arguments ... Can we actually do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

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struct - C++ member variable aliases?

I'm pretty sure this is possible, because I'm pretty sure I've seen it done. I think it is awesome, ... think? Possible? Possible but stupid? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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410 views

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struct and typedef in C versus C++

I am currently using a C++ IDE for something that will need to work on C, and wanted to make sure that I won ... {//stuff} test; and my version? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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662 views

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struct - Python - converting sock.recv to string

I'm digging around with python and networking. while True: data = sock.recv(10240) This is definitely listening. But ... 's the way to convert? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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507 views

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struct bitfield max size (C99, C++)

What is maximal bit width for bit struct field? struct i { long long i:127;} Can I define a bit field ... also extensions like __int128 in gcc. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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359 views

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struct - How to work with pointer to pointer to structure in C?

I want to change member of structure under double pointer. Do you know how? Example code typedef struct { int member; } ... *foo->member = 1; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

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struct - Are the members of a global structure initialized to zero by default in C?

Are the members of a global or static structure in C guaranteed to be automatically initialized to zero, in ... global or static variables are? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

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struct - C initialize array within structure

I want to have an variable-length array contained within a structure, but am having trouble initializing it ... flexible array member' error. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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struct - What is the difference between '&self' and '&'a self'?

I recently had an error which was simply resolved by changing impl<'a> Foo<'a> { fn foo(&'a self, ... between this and my first code snipped. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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673 views

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struct - C Typedef - Incomplete Type

So, out of the blue, the compiler decides to spit this in face: "field customer has incomplete type". Here's the ... for me, as you might tell ] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

1 answer

struct - How can I use a custom type as key for a map in C++?

I am trying to assign a custom type as a key for std::map. Here is the type which I am using as key: ... . Why does my first code not work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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757 views

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struct - memcpy vs assignment in C

Under what circumstances should I expect memcpys to outperform assignments on modern INTEL/AMD hardware? I am using GCC 4. ... 64 bit as well). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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513 views

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struct - Empty structure in C

I have a structure with no members (for the moment) and I would like to know if it is possible to suppress ... struct zero? Any other solution? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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