SDDS_TABLE SDDS_table;
/* open the file and read the SDDS header */
SDDS_InitializeInput(&SDDS_table, filename)
/* see if arrays that are needed are present */
if ((SDDS_CheckArray(&SDDS_table, array_I_need, NULL,
SDDS_ANY_NUMERIC_TYPE, stderr)) != SDDS_CHECK_OKAY) {
fprintf(stderr, "array %s is not in the data file",
array_I_need);
exit(1);
}
...
/* see if parameters that are needed are present */
if ((SDDS_CheckParameter(&SDDS_table, parameter_I_need, NULL,
SDDS_ANY_NUMERIC_TYPE, stderr)) != SDDS_CHECK_OKAY) {
fprintf(stderr, "parameter %s is not in the data file",
parameter_I_need);
exit(1);
}
...
/* see if columns that are needed are present */
if ((SDDS_CheckColumn(&SDDS_table, column_I_need, NULL,
SDDS_ANY_NUMERIC_TYPE, stderr)) != SDDS_CHECK_OKAY) {
fprintf(stderr, "column %s is not in the data file",
column_I_need);
exit(1);
}
...
/* read and process each data table in the data set */
while (SDDS_ReadTable(&SDDS_table)>0) {
/* set all rows and all columns to initially be "of interest" */
SDDS_SetColumnFlags(&SDDS_table, 1);
SDDS_SetRowFlags(&SDDS_table, 1);
/* access array data */ SDDS_GetArray(...)
/* access parameter data */ SDDS_GetParameter(...)
/* optional row and column selection operations */
SDDS_SetColumnsOfInterest(...);
SDDS_SetRowsOfInterest(...);
SDDS_FilterRowsOfInterest(...);
/* access tabular data values */
SDDS_GetValue(...)
SDDS_GetRow(...)
SDDS_GetColumn(...)
...
}