auto

A Storage-Class Specifier used within a function. A local function variable declared with auto has a local lifetime. This is the default.

Example

The following example shows an auto variable,retry, being used in a for loop.

    #define MAX_RETRIES 5

    static int logon_done = 0;

    auto int retry; // Attempt to logon MAX_TRIES 

    if (!logon_done) {

        // logon to server here and break out of loop if successful 

        for (retry=0; retry<MAX_RETRIES; retry++)

            lr_output_message ("Retry number %d", retry);

        logon_done = 1;

    }

Example: Output:
Action.c(12): Retry number 0
Action.c(12): Retry number 1
Action.c(12): Retry number 2
Action.c(12): Retry number 3
Action.c(12): Retry number 4