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fix #3

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This commit is contained in:
Kadir Yamamoto
2023-03-22 17:52:19 +09:00
parent d46efe7773
commit 75968411fe
1 changed files with 8 additions and 1 deletions
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src/primitives/helpers.rs
+8 -1
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@@ -12,6 +12,7 @@ use windows::{
},
},
};
use windows::Win32::System::Ole::SafeArrayGetLBound;
pub fn prepare_assembly(bytes: &[u8]) -> Result<*mut SAFEARRAY, String> {
let mut bounds = SAFEARRAYBOUND {
@@ -48,7 +49,13 @@ pub fn prepare_assembly(bytes: &[u8]) -> Result<*mut SAFEARRAY, String> {
}
pub fn get_array_length(array_ptr: *mut SAFEARRAY) -> i32 {
unsafe { SafeArrayGetUBound(array_ptr, 1) }.unwrap_or(0)
let upper = unsafe { SafeArrayGetUBound(array_ptr, 1) }.unwrap_or(0);
let lower = unsafe { SafeArrayGetLBound(array_ptr, 1) }.unwrap_or(0);
match upper - lower {
0 => 0,
delta => delta + 1
}
}
pub fn empty_array() -> *mut SAFEARRAY {