gcc/c/c-typeck.c

228    VALUE is the expression that was used (or 0 if that isn't known)
696      if used inconsistently.  The middle-end uses these to mark const
981 /* Wrapper around c_common_type that is used by c-common.c and other
1618   /* 'volatile' qualifiers on a function's return type used to mean
1897 /* Mark EXP as read, not just set, for set but not used -Wunused
1964 	       be used correctly inside sizeof or as a statement expression.
2119 /* Perform default promotions for C data used in expressions.
2138   /* Constants can be used directly unless they're not loadable.  */
2437 	     so that we get the proper error message if the result is used
2623    whether this will be used for a function call.  LOC is the source
2723 /* Record details of decls possibly used inside sizeof or typeof.  */
2737    inside sizeof or typeof, might be used if the operand of sizeof is
2751 /* Pop the stack of decls possibly used inside sizeof or typeof.  If
2752    USED is false, just discard them.  If it is true, mark them used
2757 pop_maybe_used (bool used)
2763       if (used)
2772   if (!used || cur_level == 0)
2930      expressions, like those used for ObjC messenger dispatches.  */
3070    FUNCTION is a tree for the called function.  It is used only for
3407 /* This is the entry point used by the parser to build unary operators
3430 /* This is the entry point used by the parser to build binary operators
3582 	     "pointer of type %<void *%> used in subtraction");
3585 	     "pointer to a function used in subtraction");
3620   This sequence is used for all types for which these operations are
3830    allows non-lvalues; this is only used to handle conversion of non-lvalue
3879       /* This is used for unary plus, because a CONVERT_EXPR
4365    how the lvalue is being used and so selects the error message.
4424 		  ("global register variable %qD used in nested function", x);
4427 	    pedwarn (input_location, 0, "register variable %qD used in nested function", x);
4592 	 and later code won't know it used to be different.
4678 		    "used in conditional expression");
4891      side-effects, but computes a value which is not used.  For example, in
4892      `foo() + bar(), baz()' the result of the `+' operator is not used,
5315   /* Types that aren't fully specified cannot be used in assignments.  */
5524    This is used to implement -fplan9-extensions.  */
5565    that field in RHS.  This is used with -fplan9-extensions.  This
5689    constant, warn if pedantic that EXPR is being used to initialize an
5755   /* This macro is used to emit diagnostics to ensure that all format
5783   /* This macro is used to emit diagnostics to ensure that all format
5812   /* This macro is used to emit diagnostics to ensure that all format
6651    For other types of INIT, STRICT_STRING is not used.
8398    For other types of VALUE, STRICT_STRING is not used.
9424 	  error_at (loc, "array notation expression cannot be used as a "
9590   /* The bindings at the point of the switch.  This is used for
9749    THEN_BLOCK and ELSE_BLOCK are expressions to be used; ELSE_BLOCK
9910   /* In switch statements break is sometimes stylistically used after
9937       error_at (loc, "break statement used with OpenMP for loop");
11390       error_at (location, "used array that cannot be converted to pointer where scalar is required");
11394       error_at (location, "used struct type value where scalar is required");
11398       error_at (location, "used union type value where scalar is required");
11409       error_at (location, "used vector type where scalar is required");
12280 			"%<nowait%> clause must not be used together "
12518 			"%<nowait%> clause must not be used together "
12649    NULL, then it should be used as the qualified type