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Diffstat (limited to 'src/core/ao.h')
-rw-r--r--src/core/ao.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/core/ao.h b/src/core/ao.h
index 1aff3d49..54018b37 100644
--- a/src/core/ao.h
+++ b/src/core/ao.h
@@ -599,10 +599,10 @@ ao_monitor_init(void) __reentrant;
* ao_stdio.c
*/
-#define AO_READ_AGAIN ((char) -1)
+#define AO_READ_AGAIN (-1)
struct ao_stdio {
- char (*pollchar)(void);
+ int (*pollchar)(void);
void (*putchar)(char c) __reentrant;
void (*flush)(void);
uint8_t echo;
@@ -621,7 +621,7 @@ uint8_t
ao_echo(void);
int8_t
-ao_add_stdio(char (*pollchar)(void),
+ao_add_stdio(int (*pollchar)(void),
void (*putchar)(char) __reentrant,
void (*flush)(void)) __reentrant;