mtmd, arg: fix utf8 handling on windows (#24779)

* mtmd, arg: fix utf8 handling on windows * also fix ggml_fopen * fix build fail * also fix CLI
2026-06-19 22:28:38 +02:00
parent 175147e8f6
commit e475fa2b5f
9 changed files with 106 additions and 13 deletions
@@ -600,18 +600,15 @@ FILE * ggml_fopen(const char * fname, const char * mode) {
    // convert fname (UTF-8)
    wchar_t * wfname = ggml_mbstowcs(fname);
    if (wfname) {
-        // convert mode (ANSI)
-        wchar_t * wmode = GGML_MALLOC((strlen(mode) + 1) * sizeof(wchar_t));
-        wchar_t * wmode_p = wmode;
-        do {
-            *wmode_p++ = (wchar_t)*mode;
-        } while (*mode++);
-
-        // open file
-        file = _wfopen(wfname, wmode);
+        // convert mode (UTF-8)
+        wchar_t * wmode = ggml_mbstowcs(mode);
+        if (wmode) {
+            // open file
+            file = _wfopen(wfname, wmode);
+            GGML_FREE(wmode);
+        }

        GGML_FREE(wfname);
-        GGML_FREE(wmode);
    }

    return file;