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package libc
// 7.5 Errors
when ODIN_OS == .Windows {
foreign import libc "system:libucrt.lib"
} else when ODIN_OS == .Darwin {
foreign import libc "system:System.framework"
} else {
foreign import libc "system:c"
}
// C11 standard only requires the definition of:
// EDOM,
// EILSEQ
// ERANGE
when ODIN_OS == .Linux {
@(private="file")
@(default_calling_convention="c")
foreign libc {
@(link_name="__errno_location")
_get_errno :: proc() -> ^int ---
}
EDOM :: 33
EILSEQ :: 84
ERANGE :: 34
}
when ODIN_OS == .FreeBSD {
@(private="file")
@(default_calling_convention="c")
foreign libc {
@(link_name="__error")
_get_errno :: proc() -> ^int ---
}
EDOM :: 33
EILSEQ :: 84
ERANGE :: 34
}
when ODIN_OS == .OpenBSD {
@(private="file")
@(default_calling_convention="c")
foreign libc {
@(link_name="__errno")
_get_errno :: proc() -> ^int ---
}
EDOM :: 33
EILSEQ :: 84
ERANGE :: 34
}
when ODIN_OS == .Windows {
@(private="file")
@(default_calling_convention="c")
foreign libc {
@(link_name="_errno")
_get_errno :: proc() -> ^int ---
}
EDOM :: 33
EILSEQ :: 42
ERANGE :: 34
}
when ODIN_OS == .Darwin {
@(private="file")
@(default_calling_convention="c")
foreign libc {
@(link_name="__error")
_get_errno :: proc() -> ^int ---
}
// Unknown
EDOM :: 33
EILSEQ :: 92
ERANGE :: 34
}
// Odin has no way to make an identifier "errno" behave as a function call to
// read the value, or to produce an lvalue such that you can assign a different
// error value to errno. To work around this, just expose it as a function like
// it actually is.
errno :: #force_inline proc() -> ^int {
return _get_errno()
}
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