|
|
|
|
|
|
|
|
sComputeCrc32 (Function) In french: sCalculeCrc32 Calculates the Cyclical Redundancy Check (CRC) of buffer. Remark: The CRC is equivalent to a buffer signature. Any modification made to the buffer changes the CRC value. The use of CRC allows you to detect the possible file modifications during a transfer via network. You can compare the CRC of the file before and after transmission. If they are identical, the file was probably not modified during the transfer.
// Calculates the CRC of a string
CRC is int
CRC = sComputeCrc32(MyString)
// Transmits the string and the CRC
// Check the integrity of string
IF sComputeCrc32(MyString) <> CRC THEN Info("Modified string")
Syntax
<Result> = sComputeCrc32(<Buffer> [, <Partial CRC>])
<Result>: Integer Control value of string (CRC) <Buffer>: Buffer or character string String or buffer used to calculate the control value (CRC) <Partial CRC>: Optional integer Result of a previous CRC calculation. This parameter is used to calculate the CRC of two buffers in a row: there is no need to concatenate the buffers. This parameter corresponds to 0 (a single buffer is managed) by default. Remarks sComputeCrc32 is identical to sComputeCrc16, but it is faster and more efficient. Business / UI classification: Business Logic
This page is also available for…
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|