Read numBytes from the file with descriptor into buffer.
Synopsis
Declared in <bdls_filesystemutil.h>
static
int
read(
FileDescriptor descriptor,
void* buffer,
int numBytes);Description
Read the specified numBytes bytes beginning at the file pointer of the file with the specified descriptor into the specified buffer. Return numBytes on success; the number of bytes read if there were not enough available; or a negative number on some other error.
Return Value
numBytes on success; the number of bytes read if fewer were available; or a negative number on error
Parameters
Name |
Description |
descriptor |
file descriptor of the file to read |
buffer |
buffer into which bytes are read |
numBytes |
number of bytes to read |
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