1. Header file #include 2.fopen() function Call the fopen() function to open or create a file. FILE *fopen(const char *path, const char *mode); path : The parameter path points to the file path, which can be an absolute path or a relative path. mode: The parameter mode specifies the read and write permissions for the […]
Tag: fopen
Explanation of c language file operation functions; fopen(); fputs(); fgets(); fflush(); fsync(); fileno(); open(); fclose();
Directory 1. What is a file Second, the meaning of the file pointer 3. Common operable functions in files 1) fopen(); Explanation 2) fputs(); Explanation 3) fgets(); Explanation 4) fflush(); Explanation 5) fsync(); Explanation 6) fileno(); Explanation 7) fclose(); Explanation 4. Example explanation 1) Basic example 2) Advanced example Five, open (); explanation 1. What […]
[Solved] The fopen function failed to create and open the file, causing the vfprintf function to fail with a segfault
Project Scenario: For devices under Linux, the project needs to save the logs related to the running time of the device, so use the fopen function to create related log files, which is convenient for locating problems in the later on-site environment. Problem description A series of i functions such as fopen are called. As […]
[Solved] ArchR reports “Error in H5Fopen(file) : HDF5. File accessibility. Unable to open file.\ “
Very disgusting error report, I tried for a long time but couldn’t solve it, and finally reinstalled ArchR and it ran normally It was difficult to install ArchR on the server at first, and it was barely usable through conda, but many packages need to be manually loaded when running ArchR. This error is probably […]
[Solved] FILE pointer, standard input, standard output, and standard error, open files fopen(), read files, and write files
Article table of contents 1. FILE pointer 2. Standard input, standard output and standard error 3. Open the file fopen() Fourth, read and write files 1. FILE pointer All file I/O functions (open(), read(), write(), lseek(), etc.) described in the previous section are performed around file descriptors. When the open() function is called to open […]
[Solved] Error: redefinition of ‘struct ap_axis<D, U, TI, TD>’ struct ap_axis when using the xfopencv library
Error when using xfopencv in vivado hls 2018.3: INFO: E:/vivado_hls/xfopencv/xfopencv/include/common/xf_axi_sdata.h:43:10: error: previous definition of ‘struct ap_axis’ struct ap_axis{ E:/vivado_hls/xfopencv/xfopencv/include/common/xf_axi_sdata.h:54:10: error: previous definition of ‘struct ap_axiu’ struct ap_axiu{ Article table of contents foreword 1. The reason for the error Second, the solution 1. Add a reference header to the file: 2. Comment out the part about […]