mpi_read_buffer

函数名称：mpi_read_buffer() - read MPI to a bufer provided by user (msb first)*@a: a multi precision integer*@buf: bufer to which the output will be written to

函数原型：int mpi_read_buffer(MPI a, uint8_t *buf, unsigned buf_len, unsigned *nbytes, int *sign)

返回类型：int

参数：

类型	参数	名称
MPI	a
uint8_t *	buf
unsigned	buf_len
unsigned *	nbytes
int *	sign

154

n等于需要存储的数量极大值

157

如果非buf或非nbytes则返回:负EINVAL

160

如果sign则sign等于 indicates a negative number

163

lzeros等于count_lzeros(a)

165

如果buf_len小于n减lzeros则

166

nbytes等于n减lzeros

167

返回:负EOVERFLOW

170

p等于buf

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nbytes等于n减lzeros

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以i大于等于0循环

177

alimb等于cpu_to_be32( array with the limbs [i])

183

内存复制(p, (u8 * ) & alimb + lzeros, BYTES_PER_MPI_LIMB - lzeros)

184

p加等于BYTES_PER_MPI_LIMB减lzeros

185

lzeros等于0

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返回:0

**调用者**
名称	描述
mpi_get_buffer	mpi_get_buffer() - Returns an allocated buffer with the MPI (msb first).* Caller must free the return string.* This function does return a 0 byte buffer with nbytes set to zero if the* value of A is zero.*@a: a multi precision integer.

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告