header-files

问题 I'm writing a python Wrapper around a C API. I have an extensive API description and right now I'm struggling with the implementation of enums defined in the header file. Let's assume i have a C API function inside myAPI.dll , that accepts an enum as argument like: void SomeFunction(SomeEnum data) From the header file, I can see that SomeEnum looks like: enum SomeEnum{ SomeValue = 1, SomeOtherValue = 2, SomeVeryStupidValue = -1 }; In python, I load the .dll like: myAPI = ctypes.cdll

问题 I'm writing a python Wrapper around a C API. I have an extensive API description and right now I'm struggling with the implementation of enums defined in the header file. Let's assume i have a C API function inside myAPI.dll , that accepts an enum as argument like: void SomeFunction(SomeEnum data) From the header file, I can see that SomeEnum looks like: enum SomeEnum{ SomeValue = 1, SomeOtherValue = 2, SomeVeryStupidValue = -1 }; In python, I load the .dll like: myAPI = ctypes.cdll

问题 I am using an open source project (Open Scene Graph). I found that all the header file names are in File format, which I found to be File With No Extension as mentioned in some website. I would like to know why those developer used this extension, rather than the traditional .h file extension. 回答1: It seems you are talking about this repository of C++ code. It looks like the authors of that code decided to follow the patterns of the C++ standard library. In standard C++, library headers are

问题 I am using an open source project (Open Scene Graph). I found that all the header file names are in File format, which I found to be File With No Extension as mentioned in some website. I would like to know why those developer used this extension, rather than the traditional .h file extension. 回答1: It seems you are talking about this repository of C++ code. It looks like the authors of that code decided to follow the patterns of the C++ standard library. In standard C++, library headers are

问题 coming from python and am a bit tripped up on what the proper approach to this is. I am trying to include this library in my project: https://github.com/nothings/stb/blob/master/stb_image.h to do so, i have to #define STB_IMAGE_IMPLEMENTATION exactly once before importing the file (as per that file's doc) This makes sense, where I am confused is, I have CLASS.h/cpp and in .h I define functions that use typedefs from that file, so I have #define STB_IMAGE_IMPLEMENTATION #include <stb_image.h>

问题 coming from python and am a bit tripped up on what the proper approach to this is. I am trying to include this library in my project: https://github.com/nothings/stb/blob/master/stb_image.h to do so, i have to #define STB_IMAGE_IMPLEMENTATION exactly once before importing the file (as per that file's doc) This makes sense, where I am confused is, I have CLASS.h/cpp and in .h I define functions that use typedefs from that file, so I have #define STB_IMAGE_IMPLEMENTATION #include <stb_image.h>

问题 coming from python and am a bit tripped up on what the proper approach to this is. I am trying to include this library in my project: https://github.com/nothings/stb/blob/master/stb_image.h to do so, i have to #define STB_IMAGE_IMPLEMENTATION exactly once before importing the file (as per that file's doc) This makes sense, where I am confused is, I have CLASS.h/cpp and in .h I define functions that use typedefs from that file, so I have #define STB_IMAGE_IMPLEMENTATION #include <stb_image.h>

问题 I am trying to move some functions to separate file in c project. I made util.h file with #ifndef _UTIL_H #define _UTIL_H #include <signal.h> #include <termios.h> #include <time.h> ... extern struct timeval tv1, tv2, dtv; void time_start(); long time_stop(); and I made util.c file with #include "util.h" ... struct timeval tv1, tv2, dtv; void time_start() { gettimeofday(&tv1, &timezone); } long time_stop() { gettimeofday(&tv2, &timezone); dtv.tv_sec = tv2.tv_sec - tv1.tv_sec; ... in cmake I

问题 I have a header file " check.h " that defines the following struct : #ifndef CHECK_H #define CHECK_H #include<string> struct Test{ std::string check; }; #endif I have another header file " test.h " that has the following function with return type as the struct Test defined above: #ifndef TEST_H #define TEST_H #include<string> #include "check.h" Test display(std::string); #endif But even on including "check.h" in this header file I get an unable to resolve identifier error. What do I do to fix

问题 I am using GDAL in visual studio 2019 community version,and I used the sample code in the their official site which is down below,the program compiles, runs and outputs fine, but I got a list of errors and warnings, I don't know if I should ignore them or make some change on header files, anyone encounter issues like this before? hope someone could give me some advice, thank you. sample code: /*gdal_test*/ #include <iostream> #include <gdal_priv.h> #include <cpl_conv.h> using namespace std;