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Workaround warnings about unused return value

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Patrick Pelissier committed 2020-07-11 20:29:55 +02:00
1 parent 50b1bedc54
commit e495b92ae5
2 files changed
+24 -13
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m-serial-json.h
+20 -10
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@@ -362,7 +362,8 @@ m_serial_json_read_array_start(m_serial_local_t local, m_serial_read_t serial, s
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
int final1 = -1, final2 = -1;
m_core_fscanf(f, " [%n ]%n", &final1, &final2);
int n = m_core_fscanf(f, " [%n ]%n", &final1, &final2);
(void) n; // Unused. Parsing is checked through c (more robust)
*num = 0; // don't know the size of the array.
// Test how much the parsing succeed.
if (final1 < 0) m_core_serial_fail();
@@ -379,7 +380,8 @@ m_serial_json_read_array_next(m_serial_local_t local, m_serial_read_t serial)
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
char c = 0;
m_core_fscanf(f, " %c", m_core_arg_size(&c, 1) );
int n = m_core_fscanf(f, " %c", m_core_arg_size(&c, 1) );
(void) n; // Unused. Parsing is checked through c (more robust)
return c == ',' ? M_SERIAL_OK_CONTINUE : c == ']' ? M_SERIAL_OK_DONE : m_core_serial_fail();
}
@@ -396,7 +398,8 @@ m_serial_json_read_map_start(m_serial_local_t local, m_serial_read_t serial, siz
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
int final1 = -1, final2 = -1;
m_core_fscanf(f, " {%n }%n", &final1, &final2);
int n = m_core_fscanf(f, " {%n }%n", &final1, &final2);
(void) n; // Unused. Parsing is checked through final (more robust)
*num = 0; // don't know the size of the map.
// Test how much the parsing succeed.
if (final1 < 0) m_core_serial_fail();
@@ -412,7 +415,8 @@ m_serial_json_read_map_value(m_serial_local_t local, m_serial_read_t serial)
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
int final = -1;
m_core_fscanf(f, " :%n", &final);
int n = m_core_fscanf(f, " :%n", &final);
(void) n; // Unused. Parsing is checked through final (more robust)
return final > 0 ? M_SERIAL_OK_CONTINUE : m_core_serial_fail();
}
@@ -426,7 +430,8 @@ m_serial_json_read_map_next(m_serial_local_t local, m_serial_read_t serial)
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
char c = 0;
m_core_fscanf(f, " %c", m_core_arg_size(&c, 1) );
int n = m_core_fscanf(f, " %c", m_core_arg_size(&c, 1) );
(void) n; // Unused. Parsing is checked through c (more robust)
return c == ',' ? M_SERIAL_OK_CONTINUE : c == '}' ? M_SERIAL_OK_DONE : m_core_serial_fail();
}
@@ -439,7 +444,8 @@ m_serial_json_read_tuple_start(m_serial_local_t local, m_serial_read_t serial)
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
int final = -1;
m_core_fscanf(f, " {%n", &final);
int n = m_core_fscanf(f, " {%n", &final);
(void) n; // Unused. Parsing is checked through final (more robust)
return final > 0 ? M_SERIAL_OK_CONTINUE : m_core_serial_fail();
}
@@ -467,8 +473,9 @@ m_serial_json_read_tuple_id(m_serial_local_t local, m_serial_read_t serial, cons
/* Read the field in the JSON */
c = -1;
char field[M_MAX_IDENTIFIER_LENGTH+1];
m_core_fscanf(f, " \"%" M_APPLY(M_AS_STR, M_MAX_IDENTIFIER_LENGTH) "[^ \t\n\"]\":%n",
int nn = m_core_fscanf(f, " \"%" M_APPLY(M_AS_STR, M_MAX_IDENTIFIER_LENGTH) "[^ \t\n\"]\":%n",
m_core_arg_size(field, M_MAX_IDENTIFIER_LENGTH+1), &c);
(void) nn ; // Unused. Check is done through 'c' (more robust).
if (c <= 0)
return m_core_serial_fail();
/* Search for field in field_name */
@@ -494,15 +501,17 @@ m_serial_json_read_variant_start(m_serial_local_t local, m_serial_read_t serial,
FILE *f = (FILE*) serial->data[0].p;
int final1 = -1, final2 = -1;
m_core_fscanf(f, " {%n }%n", &final1, &final2);
int nn = m_core_fscanf(f, " {%n }%n", &final1, &final2);
(void) nn ; // Unused. Check is done through final (more robust).
// Test how much the parsing succeed.
if (final1 <= 0) return m_core_serial_fail();
if (final2 > 0) return M_SERIAL_OK_DONE;
/* Read the field in the JSON */
char field[M_MAX_IDENTIFIER_LENGTH+1];
m_core_fscanf(f, " \"%" M_APPLY(M_AS_STR, M_MAX_IDENTIFIER_LENGTH) "[^ \t\n\"]\":%n",
nn = m_core_fscanf(f, " \"%" M_APPLY(M_AS_STR, M_MAX_IDENTIFIER_LENGTH) "[^ \t\n\"]\":%n",
m_core_arg_size(field, M_MAX_IDENTIFIER_LENGTH+1), &final2);
(void) nn ; // Unused. Check is done through final (more robust).
if (final2 <= 0) return m_core_serial_fail();
/* Linear Search for field in field_name */
@@ -525,7 +534,8 @@ m_serial_json_read_variant_end(m_serial_local_t local, m_serial_read_t serial)
(void) local; // argument not used
FILE *f = (FILE*) serial->data[0].p;
int final = -1;
m_core_fscanf(f, " }%n", &final);
int n = m_core_fscanf(f, " }%n", &final);
(void) n ; // Unused. Check is done through final (more robust).
return final > 0 ? M_SERIAL_OK_DONE : m_core_serial_fail();
}