On Friday, 15 September 2017 at 04:01:13 UTC, Timothy Foster
wrote:
I'm compiling on Windows 7 x64, DMD32 D Compiler v2.075.1 and
I'm using Derelict Fmod to handle audio in my application.
Every Fmod function returns an int telling me if the function
ran okay, or if there was an error. I've written the following
helper function that will print something for me if it
encounters an error:
static void ErrorFMOD(int result, string msg = ""){
if(result != FMOD_OK)
writeln("[ FMOD ] ", msg, FMOD_ErrorString(result));
}
This function has been causing Access Violation Errors when I
call it. It doesn't happen every time and it doesn't always
happen in the same place. The errors occur _even when I comment
out everything inside the function_. I've been calling it like
so:
ErrorFMOD(FMOD_System_Create(&system), "Error Creating System:
");
Making the calls without my helper function doesn't cause an
Access Violation.
Calling it like this is the only thing that seems to fix it:
auto result = FMOD_System_Create(&system);
ErrorFMOD(result, "Error Creating System: ");
Is this a known issue, or am I required to save the result of a
C function to variable before passing it into another function
or?
Probably you have to use const char * msg when interfacing with
C. string is a struct - size_t length and const char * value
