altos/scheme: apply const to places taking const strings.

[fw/altos] / src / scheme / ao_scheme_builtin.c

diff --git a/src/scheme/ao_scheme_builtin.c b/src/scheme/ao_scheme_builtin.c
index c0f636fa78b58a5592ff97d655d509976a47e8ac..4def57045bbea9c56d77a34936941c644cf5805f 100644 (file)
--- a/src/scheme/ao_scheme_builtin.c
+++ b/src/scheme/ao_scheme_builtin.c
@@ -52,7 +52,7 @@ char *ao_scheme_args_name(uint8_t args) {
        case AO_SCHEME_FUNC_LAMBDA: return ao_scheme_poly_atom(_ao_scheme_atom_lambda)->name;
        case AO_SCHEME_FUNC_NLAMBDA: return ao_scheme_poly_atom(_ao_scheme_atom_nlambda)->name;
        case AO_SCHEME_FUNC_MACRO: return ao_scheme_poly_atom(_ao_scheme_atom_macro)->name;
-       default: return "???";
+       default: return (char *) "???";
        }
 }
 #else
@@ -64,7 +64,7 @@ static char *
 ao_scheme_builtin_name(enum ao_scheme_builtin_id b) {
        if (b < _builtin_last)
                return ao_scheme_poly_atom(builtin_names[b])->name;
-       return "???";
+       return (char *) "???";
 }
 
 static const ao_poly ao_scheme_args_atoms[] = {
@@ -79,7 +79,7 @@ ao_scheme_args_name(uint8_t args)
        args &= AO_SCHEME_FUNC_MASK;
        if (args < sizeof ao_scheme_args_atoms / sizeof ao_scheme_args_atoms[0])
                return ao_scheme_poly_atom(ao_scheme_args_atoms[args])->name;
-       return "(unknown)";
+       return (char *) "(unknown)";
 }
 #endif