2.11.26 warn_missing_parameter_info

#pragma [no_]warn_missing_parameter_info

When you specify #pragma warn_missing_parameter_info, the compiler issues a warning for a function call whose function declaration contains no parameter type information. Consider the following example:

example% cat -n t.c
     1    #pragma warn_missing_parameter_info
     2    
     3    int foo();
     4    
     5    int bar () {
     6    
     7       int i;
     8    
     9       i = foo(i);
    10    
    11       return i;
    12    }
% cc t.c -c -errtags
"t.c", line 9: warning: function foo has no prototype (E_NO_MISSED_PARAMS_ALLOWED)
example%

#pragma no_warn_missing_parameter_info turns off the effect of any previous #pragma warn_missing_parameter_info.

By default, #pragma no_warn_missing_parameter_info is in effect.