diff options
| -rw-r--r-- | src/check_builtin.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/check_builtin.cpp b/src/check_builtin.cpp index 1b3e6912c..929891826 100644 --- a/src/check_builtin.cpp +++ b/src/check_builtin.cpp @@ -2695,6 +2695,16 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As case BuiltinProc_size_of: { // size_of :: proc(Type or expr) -> untyped int + if (ce->args[0]->kind == Ast_UnaryExpr) { + ast_node(arg, UnaryExpr, ce->args[0]); + if (arg->op.kind == Token_And) { + ERROR_BLOCK(); + + warning(ce->args[0], "'size_of(&x)' returns the size of a pointer, not the size of x"); + error_line("\tSuggestion: Use 'size_of(rawptr)' if you want the size of the pointer"); + } + } + Operand o = {}; check_expr_or_type(c, &o, ce->args[0]); if (o.mode == Addressing_Invalid) { |