fread return 0
If you don't know what is wrong, you have to check for errors. Here is what a manual page says: RETURN VALUE. fread() and fwrite() return the ..., Already figured out why this was happening. After closing the program I free the memory, and when I read from the file I don't use realloc, fixed ..., 如果size或count為0，則fread會傳回0，而緩衝區內容則不會變更。If size or count is 0, fread returns 0 and the buffer contents are unchanged. 如果 ..., You aren't reading anything in because you fseek ed to the end of the file. Do a fseek(fd, 0, SEEK_SET); to return to the beginning of the file ..., fread() will read a count of items of a specified size from the provided IO stream ( FILE* ... The return value will be zero. ... a.out read 0 bytes., You moved to the end of the file with fseek , and then you're trying to read from it - but, since you are already at the end of the file, the read fails ...,If size or count is 0, the fread() function returns zero, and the contents of the array and the state of the stream remain unchanged. The value of errno can be set to:. , are you sure that your file has a size greater than 50000 ? else you could try: fread(aByte,1, sizeof(aByte), file);., Firstly, standard library is not required to meaningfully support seeking from SEEK_END . Did you check the value of sizeIndexI ? Maybe it is ..., If an error occurs, or the end-of-file is reached, the return value is a short item count (or zero). fread does not distinguish between end-of-file and ...
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 fread return 0 相關參考資料
C: fread function returns 0 - Stack Overflow
If you don't know what is wrong, you have to check for errors. Here is what a manual page says: RETURN VALUE. fread() and fwrite() return the ... https://stackoverflow.com C: fread returning 0 - Stack Overflow
Already figured out why this was happening. After closing the program I free the memory, and when I read from the file I don't use realloc, fixed ... https://stackoverflow.com fread - Microsoft Docs
如果size或count為0，則fread會傳回0，而緩衝區內容則不會變更。If size or count is 0, fread returns 0 and the buffer contents are unchanged. 如果 ... https://docs.microsoft.com fread returns zero - Stack Overflow
You aren't reading anything in because you fseek ed to the end of the file. Do a fseek(fd, 0, SEEK_SET); to return to the beginning of the file ... https://stackoverflow.com fread() return value in C - Stack Overflow
fread() will read a count of items of a specified size from the provided IO stream ( FILE* ... The return value will be zero. ... a.out read 0 bytes. https://stackoverflow.com fread() Returning Zero Bytes Read: I Don't Understand Why ...
You moved to the end of the file with fseek , and then you're trying to read from it - but, since you are already at the end of the file, the read fails ... https://stackoverflow.com fread() — Read Items - IBM Knowledge Center
If size or count is 0, the fread() function returns zero, and the contents of the array and the state of the stream remain unchanged. The value of errno can be set to:. https://www.ibm.com Why does fread always return 0? - Stack Overflow
are you sure that your file has a size greater than 50000 ? else you could try: fread(aByte,1, sizeof(aByte), file);. https://stackoverflow.com Why fread() returns 0? - Stack Overflow
Firstly, standard library is not required to meaningfully support seeking from SEEK_END . Did you check the value of sizeIndexI ? Maybe it is ... https://stackoverflow.com [重要]C中fread()函数的返回值 - CSDN
If an error occurs, or the end-of-file is reached, the return value is a short item count (or zero). fread does not distinguish between end-of-file and ... https://blog.csdn.net |