Update longToStr and update tests

Jan Breuer

2015-01-18 40fb36f5705e29a37e9fb0fbe62dbd667514a2ee

 libscpi/inc/scpi/types.h

@@ -117,6 +117,13 @@
        char * data;
    };
    typedef struct _scpi_buffer_t scpi_buffer_t;
    
    struct _scpi_const_buffer_t {
        size_t length;
        size_t position;
        const char * data;
    };
    typedef struct _scpi_const_buffer_t scpi_const_buffer_t;

    typedef size_t(*scpi_write_t)(scpi_t * context, const char * data, size_t len);
    typedef scpi_result_t(*scpi_write_control_t)(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val);
@@ -183,6 +190,7 @@
    typedef struct _scpi_parser_state_t scpi_parser_state_t;

    typedef scpi_result_t(*scpi_command_callback_t)(scpi_t *);
    typedef int32_t(*scpi_test_command_callback_t)(scpi_t *);

    /* scpi error queue */
    typedef void * scpi_error_queue_t;
@@ -231,7 +239,7 @@
    struct _scpi_param_list_t {
        const scpi_command_t * cmd;
        lex_state_t lex_state;
        scpi_buffer_t cmd_raw;
        scpi_const_buffer_t cmd_raw;
    };
    typedef struct _scpi_param_list_t scpi_param_list_t;  
    
@@ -267,7 +275,7 @@
        scpi_write_control_t control;
        scpi_command_callback_t flush;
        scpi_command_callback_t reset;
        scpi_command_callback_t test;
        scpi_test_command_callback_t test;
    };

    struct _scpi_t {