diff --git a/src/terminal.c b/src/terminal.c
index 606a9db..b030403 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -534,7 +534,7 @@
 	    cmd = (char_u*)"";
 
 	len = STRLEN(cmd) + 10;
-	p = alloc((int)len);
+	p = alloc(len);
 
 	for (i = 0; p != NULL; ++i)
 	{
@@ -1630,7 +1630,7 @@
 	    if (len == 0)
 		p = NULL;
 	    else
-		p = (cellattr_T *)alloc((int)sizeof(cellattr_T) * len);
+		p = (cellattr_T *)alloc(sizeof(cellattr_T) * len);
 	    if ((p != NULL || len == 0)
 				     && ga_grow(&term->tl_scrollback, 1) == OK)
 	    {
@@ -2884,7 +2884,7 @@
 
 	ga_init2(&ga, 1, 100);
 	if (len > 0)
-	    p = (cellattr_T *)alloc((int)sizeof(cellattr_T) * len);
+	    p = (cellattr_T *)alloc(sizeof(cellattr_T) * len);
 	if (p != NULL)
 	{
 	    for (col = 0; col < len; col += cells[col].width)
@@ -3718,7 +3718,7 @@
 	    p = dict_get_string(dict, (char_u *)"encoding", FALSE);
 	if (p != NULL)
 	{
-	    ea.cmd = alloc((int)STRLEN(p) + 12);
+	    ea.cmd = alloc(STRLEN(p) + 12);
 	    if (ea.cmd != NULL)
 	    {
 		sprintf((char *)ea.cmd, "sbuf ++enc=%s", p);
@@ -4031,7 +4031,7 @@
 	else
 	    txt = (char_u *)_("finished");
 	len = 9 + STRLEN(term->tl_buffer->b_fname) + STRLEN(txt);
-	term->tl_status_text = alloc((int)len);
+	term->tl_status_text = alloc(len);
 	if (term->tl_status_text != NULL)
 	    vim_snprintf((char *)term->tl_status_text, len, "%s [%s]",
 						term->tl_buffer->b_fname, txt);
@@ -4663,7 +4663,7 @@
     {
 	size_t len = STRLEN(fname1) + 12;
 
-	fname_tofree = alloc((int)len);
+	fname_tofree = alloc(len);
 	if (fname_tofree != NULL)
 	{
 	    vim_snprintf((char *)fname_tofree, len, "dump diff %s", fname1);
@@ -4935,7 +4935,7 @@
     else
     {
 	size_t		size = sizeof(sb_line_T) * term->tl_scrollback.ga_len;
-	sb_line_T	*temp = (sb_line_T *)alloc((int)size);
+	sb_line_T	*temp = (sb_line_T *)alloc(size);
 
 	/* need to copy cell properties into temp memory */
 	if (temp != NULL)
@@ -5800,7 +5800,7 @@
     {
 	/* Request by CreateProcessW */
 	breq = wcslen(cmd_wchar) + 1 + 1;	/* Addition of NUL by API */
-	cmd_wchar_copy = (PWSTR)alloc((int)(breq * sizeof(WCHAR)));
+	cmd_wchar_copy = (PWSTR)alloc(breq * sizeof(WCHAR));
 	wcsncpy(cmd_wchar_copy, cmd_wchar, breq - 1);
     }
 
@@ -5830,7 +5830,7 @@
     /* Set up pipe inheritance safely: Vista or later. */
     pInitializeProcThreadAttributeList(NULL, 1, 0, &breq);
     term->tl_siex.lpAttributeList =
-	    (PPROC_THREAD_ATTRIBUTE_LIST)alloc((int)breq);
+	    (PPROC_THREAD_ATTRIBUTE_LIST)alloc(breq);
     if (!term->tl_siex.lpAttributeList)
 	goto failed;
     if (!pInitializeProcThreadAttributeList(term->tl_siex.lpAttributeList, 1,