[PATCH 2/3] NF example / bindings: use bool where appropriate

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

---
 tests/natfeats/natfeats.c | 12 ++++++------
 tests/natfeats/natfeats.h |  9 ++++++---
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/tests/natfeats/natfeats.c b/tests/natfeats/natfeats.c
index 0b455b85..e644622d 100644
--- a/tests/natfeats/natfeats.c
+++ b/tests/natfeats/natfeats.c
@@ -1,7 +1,7 @@
 /*
  * natfeat.c - NatFeats API examples
  *
- * Copyright (c) 2014-2016, 2019 by Eero Tamminen
+ * Copyright (c) 2014-2016, 2019-2020 by Eero Tamminen
  * 
  * NF initialization & calling is based on EmuTOS code,
  * Copyright (c) 2001-2003 The EmuTOS development team
@@ -87,23 +87,23 @@ long nf_print(const char *text)
 	}
 }
 
-long nf_debugger(void)
+bool nf_debugger(void)
 {
 	if (nfid_debugger) {
 		return nf_call(nfid_debugger);
 	} else {
 		(void)Cconws("NF_DEBUGGER unavailable!\r\n");
-		return 0;
+		return false;
 	}
 }
 
-long nf_fastforward(long enabled)
+bool nf_fastforward(bool enabled)
 {
 	if (nfid_fastforward) {
-		return nf_call(nfid_fastforward, enabled);
+		return nf_call(nfid_fastforward, (long)enabled);
 	} else {
 		(void)Cconws("NF_FASTFORWARD unavailable!\r\n");
-		return 0;
+		return false;
 	}
 }
 
diff --git a/tests/natfeats/natfeats.h b/tests/natfeats/natfeats.h
index 6c815e79..9ffa2b19 100644
--- a/tests/natfeats/natfeats.h
+++ b/tests/natfeats/natfeats.h
@@ -10,6 +10,8 @@
 #ifndef _NATFEAT_H
 #define _NATFEAT_H
 
+#include <stdbool.h>
+
 /* AHCC uses registers to pass arguments, but
  * NatFeats calls expect arguments to be in stack.
  * "cdecl" can be used to declare that arguments
@@ -65,15 +67,16 @@ extern long nf_print(const char *text);
 /**
  * invoke emulator debugger
  * (Hatari specific, can be used e.g. in asserts)
+ * returns true on debugger invocation
  */
-extern long nf_debugger(void);
+extern bool nf_debugger(void);
 
 /**
- * set emulator fastforward mode on (1) or off (0)
+ * set emulator fastforward mode on (true) or off (false)
  * (Hatari specific)
  * returns previous value
  */
-extern long nf_fastforward(long enabled);
+extern bool nf_fastforward(bool enabled);
 
 /**
  * terminate the execution of the emulation if possible
-- 
2.20.1


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