show_expression
extern int show_expression(struct expression *);
int cond = show_expression(expr->conditional);
int valt = show_expression(expr->cond_true);
int valf = show_expression(expr->cond_false);
int new = show_expression(expr->init_expr);
show_expression(expr);
show_expression(sym->initializer);
int val = show_expression(stmt->switch_expression);
return show_expression(stmt->expression);
val = show_expression(cond);
val = show_expression(pre_condition);
val = show_expression(post_condition);
int val = show_expression(stmt->goto_expression);
int val = show_expression(stmt->expression);
int val = show_expression(stmt->range_expression);
int low = show_expression(stmt->range_low);
int high = show_expression(stmt->range_high);
int new = show_expression(arg);
fncall = show_expression(fn);
show_expression(expr->left);
return show_expression(expr->right);
int left = show_expression(expr->left);
int right = show_expression(expr->right);
int target = show_expression(expr->base);
int target = show_expression(expr->unop);
return show_expression(expr->unop);
val = show_expression(expr->right);
int val = show_expression(expr);
val = show_expression(expr);
val = show_expression(expr);
int op = show_expression(expr->cast_expression);