From 078721e1a2e6f361f4c7ed6b9017b6fb0d7211a1 Mon Sep 17 00:00:00 2001 From: Andrew Cagney Date: Wed, 17 May 2000 08:15:29 +0000 Subject: Add options -Wunused-variable, -Wunused-function, -Wunused-label, -Wunused-parameter. Retain existing -Wunused behavour. Document. From-SVN: r33953 --- gcc/stmt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'gcc/stmt.c') diff --git a/gcc/stmt.c b/gcc/stmt.c index 0626e2c..a3b72ea 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -1857,12 +1857,13 @@ expand_expr_stmt (exp) except inside a ({...}) where they may be useful. */ if (expr_stmts_for_value == 0 && exp != error_mark_node) { - if (! TREE_SIDE_EFFECTS (exp) && (extra_warnings || warn_unused) + if (! TREE_SIDE_EFFECTS (exp) + && (extra_warnings || warn_unused_value) && !(TREE_CODE (exp) == CONVERT_EXPR && TREE_TYPE (exp) == void_type_node)) warning_with_file_and_line (emit_filename, emit_lineno, "statement with no effect"); - else if (warn_unused) + else if (warn_unused_value) warn_if_unused_value (exp); } @@ -3575,7 +3576,7 @@ warn_about_unused_variables (vars) { tree decl; - if (warn_unused) + if (warn_unused_variable) for (decl = vars; decl; decl = TREE_CHAIN (decl)) if (TREE_CODE (decl) == VAR_DECL && ! TREE_USED (decl) -- cgit v1.1