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更改README

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fumiama
2021-05-18 09:27:38 +08:00
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README.md
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@@ -13,7 +13,7 @@ The sp file format is shown below.
[struct_len] + n*[[type][data_len][data]]
```
1. `type` is an one-byte number indicating the type length(2^type^bytes) of this struct item.
1. `type` is a length-variable LE number(less than 2^57^) indicating the aligned type length of each struct item.
2. `*_len` is a length-variable LE number(less than 2^57^) indicating the length of `*`.
3. `data` contains `data_len` bytes of the data.
@@ -21,18 +21,11 @@ The sp file format is shown below.
You can read `test.c` to find out the detailed usage.
## Save a struct
### 1. Create items type info array
### 1. Create items type length info array
This array has type `uint8_t`, which indicates the length of each struct item. Note that the length of each item must be 2^n^.
### 2. Align items type info array
You can use function `align_struct` to align each item to the proper size.
If you are sure that your struct has been aligned, you won't need to run `align_struct`.
### 3. Call set_pb to save
This array has type `uint64_t`, which indicates the aligned length of each struct item. You should call `align_struct` to get that array.
### 2. Call set_pb to save
## Read into a struct