[libc-commits] [libc] 5210803 - [libc] Cast the error value to int (#172724)

[via libc-commits]

Author: Petr Hosek
Date: 2025-12-17T20:09:35Z
New Revision: 521080386e13f6708dff74e80008aa276ee3cde9

URL: https://github.com/llvm/llvm-project/commit/521080386e13f6708dff74e80008aa276ee3cde9
DIFF: https://github.com/llvm/llvm-project/commit/521080386e13f6708dff74e80008aa276ee3cde9.diff

LOG: [libc] Cast the error value to int (#172724)

The negative value represents an error and we already use cast in this
scenario elsewhere.

Added: 
    

Modified: 
    libc/src/stdio/baremetal/vfprintf_internal.h

Removed: 
    


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diff  --git a/libc/src/stdio/baremetal/vfprintf_internal.h b/libc/src/stdio/baremetal/vfprintf_internal.h
index 59a95ea23c89e..d38a56481bc37 100644
--- a/libc/src/stdio/baremetal/vfprintf_internal.h
+++ b/libc/src/stdio/baremetal/vfprintf_internal.h
@@ -30,7 +30,7 @@ LIBC_INLINE int write_hook(cpp::string_view str_view, void *cookie) {
   auto result =
       __llvm_libc_stdio_write(cookie, str_view.data(), str_view.size());
   if (result <= 0)
-    return result;
+    return static_cast<int>(result);
   if (static_cast<size_t>(result) != str_view.size())
     return printf_core::FILE_WRITE_ERROR;
   return printf_core::WRITE_OK;