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cJSON_GetStringValue

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This commit is contained in:
Max Bruckner 2017-11-12 14:30:26 +01:00
parent 27a4303f87
commit b2afbd3c9f
3 changed files with 25 additions and 0 deletions
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8
cJSON.c
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@ -73,6 +73,14 @@ CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void)
return (const char*) (global_error.json + global_error.position);
}
CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item) {
if (!cJSON_IsString(item)) {
return NULL;
}
return item->valuestring;
}
/* This is a safeguard to prevent copy-pasters from using incompatible C and header files */
#if (CJSON_VERSION_MAJOR != 1) || (CJSON_VERSION_MINOR != 6) || (CJSON_VERSION_PATCH != 0)
#error cJSON.h and cJSON.c have different versions. Make sure that both have the same.

3
cJSON.h
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@ -165,6 +165,9 @@ CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *st
/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
/* Check if the item is a string and return its valuestring */
CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item);
/* These functions check the type of an item */
CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item);

14
tests/misc_tests.c
View File

@ -450,6 +450,19 @@ static void skip_utf8_bom_should_not_skip_bom_if_not_at_beginning(void)
TEST_ASSERT_NULL(skip_utf8_bom(&buffer));
}
static void cjson_get_string_value_should_get_a_string(void)
{
cJSON *string = cJSON_CreateString("test");
cJSON *number = cJSON_CreateNumber(1);
TEST_ASSERT_TRUE(cJSON_GetStringValue(string) == string->valuestring);
TEST_ASSERT_NULL(cJSON_GetStringValue(number));
TEST_ASSERT_NULL(cJSON_GetStringValue(NULL));
cJSON_Delete(number);
cJSON_Delete(string);
}
int main(void)
{
UNITY_BEGIN();
@ -468,6 +481,7 @@ int main(void)
RUN_TEST(ensure_should_fail_on_failed_realloc);
RUN_TEST(skip_utf8_bom_should_skip_bom);
RUN_TEST(skip_utf8_bom_should_not_skip_bom_if_not_at_beginning);
RUN_TEST(cjson_get_string_value_should_get_a_string);
return UNITY_END();
}