erts: Fix faulty assert in prim_tty_nif:isprint/1

sverker · sverker · commit 15c872221b08 · 2025-09-16T17:40:33.000+02:00
diff --git a/erts/emulator/nifs/common/prim_tty_nif.c b/erts/emulator/nifs/common/prim_tty_nif.c
@@ -299,7 +299,7 @@ static ERL_NIF_TERM tty_encoding_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
 static ERL_NIF_TERM isprint_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) {
     int i;
     if (enif_get_int(env, argv[0], &i)) {
-        ASSERT(i > 0 && i < 256);
+        ASSERT(i >= 0 && i < 256);
         return isprint((char)i) ? atom_true : atom_false;
     }
     return enif_make_badarg(env);

Original file line number	Diff line number	Diff line change
`@@ -299,7 +299,7 @@ static ERL_NIF_TERM tty_encoding_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER`
`299`	`299`	`static ERL_NIF_TERM isprint_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) {`
`300`	`300`	`int i;`
`301`	`301`	`if (enif_get_int(env, argv[0], &i)) {`
`302`		`- ASSERT(i > 0 && i < 256);`
	`302`	`+ ASSERT(i >= 0 && i < 256);`
`303`	`303`	`return isprint((char)i) ? atom_true : atom_false;`
`304`	`304`	`}`
`305`	`305`	`return enif_make_badarg(env);`