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README: Get rid of valueint and do necessary checks

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Max Bruckner 2017-04-01 22:23:00 +02:00
parent b1e9a6c0da
commit 29cfc7a767
1 changed files with 10 additions and 5 deletions
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README.md
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@ -136,13 +136,19 @@ What's the framerate?
```c
cJSON *format = cJSON_GetObjectItem(root, "format");
int framerate = cJSON_GetObjectItem(format, "frame rate")->valueint;
cJSON *framerate_item = cJSON_GetObjectItem(format, "frame rate");
double framerate = 0;
if (cJSON_IsNumber(framerate_item))
{
framerate = framerate_item->valuedouble;
}
```
Want to change the framerate?
```c
cJSON_GetObjectItem(format, "frame rate")->valueint = 25;
cJSON *framerate_item = cJSON_GetObjectItem(format, "frame rate");
cJSON_SetNumberValue(framerate_item, 25);
```
Back to disk?
@ -201,7 +207,7 @@ typedef struct cJSON {
int type;
char *valuestring;
int valueint;
int valueint; /* DEPRECATED, please use valudouble instead */
double valuedouble;
char *string;
@ -217,8 +223,7 @@ A `child` entry will have `prev == 0`, but next potentially points on. The last
The type expresses *Null*/*True*/*False*/*Number*/*String*/*Array*/*Object*, all of which are `#defined` in
`cJSON.h`.
A *Number* has `valueint` and `valuedouble`. If you're expecting an `int`, read `valueint`, if not read
`valuedouble`.
A *Number* has `valueint` and `valuedouble`. `valueint` is a relict of the past, so always use `valuedouble`.
Any entry which is in the linked list which is the child of an object will have a `string`
which is the "name" of the entry. When I said "name" in the above example, that's `string`.