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Resolve conversion warnings.

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Resolve conversion warnings when -Wconversion is added to the compiler
arguments.
This commit is contained in:
chuckwolber 2020-08-10 12:56:13 -07:00
parent 102a4467e1
commit 8fbbbc238f
3 changed files with 27 additions and 22 deletions
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13
Makefile
View File

@ -1,12 +1,17 @@
CC = gcc
CFLAGS = -O0 -g -Wall -Wextra -std=c89 -pedantic-errors
CFLAGS = -O0 -g -Wall -Wextra -Wconversion -std=c89 -pedantic-errors
CPPC = g++
CPPFLAGS = -O0 -g -Wall -Wextra
CPPFLAGS = -O0 -g -Wall -Wextra -Wconversion
all: test testcpp
all: test testcpp parson
.PHONY: test testcpp parson
parson: parson.o
parson.o: parson.c
$(CC) $(CFLAGS) -c $< -o $@
.PHONY: test testcpp
test: tests.c parson.c
$(CC) $(CFLAGS) -o $@ tests.c parson.c
./$@

32
parson.c
View File

@ -297,7 +297,7 @@ static char * read_file(const char * filename) {
fclose(fp);
return NULL;
}
size_to_read = pos;
size_to_read = (size_t)pos;
rewind(fp);
file_contents = (char*)parson_malloc(sizeof(char) * (size_to_read + 1));
if (!file_contents) {
@ -340,7 +340,7 @@ static void remove_comments(char *string, const char *start_token, const char *e
if (!ptr) {
return;
}
for (i = 0; i < (ptr - string) + end_token_len; i++) {
for (i = 0; i < (size_t)(ptr - string) + end_token_len; i++) {
string[i] = ' ';
}
string = ptr + end_token_len - 1;
@ -470,7 +470,7 @@ static JSON_Status json_object_dotremove_internal(JSON_Object *object, const cha
if (dot_pos == NULL) {
return json_object_remove_internal(object, name, free_value);
}
temp_value = json_object_getn_value(object, name, dot_pos - name);
temp_value = json_object_getn_value(object, name, (size_t)(dot_pos - name));
if (json_value_get_type(temp_value) != JSONObject) {
return JSONFailure;
}
@ -589,13 +589,13 @@ static int parse_utf16(const char **unprocessed, char **processed) {
if (cp < 0x80) {
processed_ptr[0] = (char)cp; /* 0xxxxxxx */
} else if (cp < 0x800) {
processed_ptr[0] = ((cp >> 6) & 0x1F) | 0xC0; /* 110xxxxx */
processed_ptr[1] = ((cp) & 0x3F) | 0x80; /* 10xxxxxx */
processed_ptr[0] = (char)(((cp >> 6) & 0x1F) | 0xC0); /* 110xxxxx */
processed_ptr[1] = (char)(((cp) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr += 1;
} else if (cp < 0xD800 || cp > 0xDFFF) {
processed_ptr[0] = ((cp >> 12) & 0x0F) | 0xE0; /* 1110xxxx */
processed_ptr[1] = ((cp >> 6) & 0x3F) | 0x80; /* 10xxxxxx */
processed_ptr[2] = ((cp) & 0x3F) | 0x80; /* 10xxxxxx */
processed_ptr[0] = (char)(((cp >> 12) & 0x0F) | 0xE0); /* 1110xxxx */
processed_ptr[1] = (char)(((cp >> 6) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[2] = (char)(((cp) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr += 2;
} else if (cp >= 0xD800 && cp <= 0xDBFF) { /* lead surrogate (0xD800..0xDBFF) */
lead = cp;
@ -608,10 +608,10 @@ static int parse_utf16(const char **unprocessed, char **processed) {
return JSONFailure;
}
cp = ((((lead - 0xD800) & 0x3FF) << 10) | ((trail - 0xDC00) & 0x3FF)) + 0x010000;
processed_ptr[0] = (((cp >> 18) & 0x07) | 0xF0); /* 11110xxx */
processed_ptr[1] = (((cp >> 12) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[2] = (((cp >> 6) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[3] = (((cp) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[0] = (char)(((cp >> 18) & 0x07) | 0xF0); /* 11110xxx */
processed_ptr[1] = (char)(((cp >> 12) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[2] = (char)(((cp >> 6) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr[3] = (char)(((cp) & 0x3F) | 0x80); /* 10xxxxxx */
processed_ptr += 3;
} else { /* trail surrogate before lead surrogate */
return JSONFailure;
@ -689,7 +689,7 @@ static char * get_quoted_string(const char **string, size_t *output_string_len)
if (status != JSONSuccess) {
return NULL;
}
input_string_len = *string - string_start - 2; /* length without quotes */
input_string_len = (size_t)(*string - string_start - 2); /* length without quotes */
return process_string(string_start + 1, input_string_len, output_string_len);
}
@ -861,7 +861,7 @@ static JSON_Value * parse_number_value(const char **string) {
double number = 0;
errno = 0;
number = strtod(*string, &end);
if (errno || !is_decimal(*string, end - *string)) {
if (errno || !is_decimal(*string, (size_t)(end - *string))) {
return NULL;
}
*string = end;
@ -1199,7 +1199,7 @@ JSON_Value * json_object_dotget_value(const JSON_Object *object, const char *nam
if (!dot_position) {
return json_object_get_value(object, name);
}
object = json_value_get_object(json_object_getn_value(object, name, dot_position - name));
object = json_value_get_object(json_object_getn_value(object, name, (size_t)(dot_position - name)));
return json_object_dotget_value(object, dot_position + 1);
}
@ -1900,7 +1900,7 @@ JSON_Status json_object_dotset_value(JSON_Object *object, const char *name, JSON
if (dot_pos == NULL) {
return json_object_set_value(object, name, value);
}
name_len = dot_pos - name;
name_len = (size_t)(dot_pos - name);
temp_value = json_object_getn_value(object, name, name_len);
if (temp_value) {
/* Don't overwrite existing non-object (unlike json_object_set_value, but it shouldn't be changed at this point) */

4
tests.c
View File

@ -199,7 +199,7 @@ void test_suite_2(JSON_Value *root_value) {
array = json_object_get_array(root_object, "x^2 array");
if (array != NULL) {
for (i = 0; i < json_array_get_count(array); i++) {
TEST(json_array_get_number(array, i) == (i * i));
TEST((size_t)json_array_get_number(array, i) == (i * i));
}
} else {
tests_failed++;
@ -683,7 +683,7 @@ static char * read_file(const char * file_path) {
assert(0);
return NULL;
}
size_to_read = pos;
size_to_read = (size_t)pos;
rewind(fp);
file_contents = (char*)malloc(sizeof(char) * (size_to_read + 1));
if (!file_contents) {