ToC path:

mco_dict_field_name

Return a field descriptor by name.

Prototype

 
    MCO_RET mco_dict_field_name(	/*IN*/ mco_metadict_header_t * metadict, 
                    /*IN*/ unsigned short dict_no,
                    /*IN*/ unsigned short struct_no,
                    /*IN*/ const char * name, 
                    /*OUT*/ mco_dict_field_info_t * field_info );

Arguments

metadict	The address of an initialized mco_metadict_header_t structure
dict_no	The number of the dictionary (must be between 0 and `mco_metadict_count()` - 1)
struct_no	The structure/class number (must be between 0 and `mco_dict_struct_count()` - 1)
name	The field name as defined in the schema
field_info	The address of a `mco_dict_field_info_t` variable to receive the field descriptor

Description

This function returns a field descriptor referred to by name.

Return Codes

MCO_S_OK	The field descriptor was successfully returned
MCO_E_UDA_DICT_NOTFOUND	The dictionary is not registered
MCO_E_UDA_STRUCT_NOTFOUND	Invalid `struct_no`
MCO_E_UDA_FIELD_NOTFOUND	Invalid field name specified

Example

 
    Application snippet:
        
     
    const char * dbname = "SimpleDb";
     
    int main(int argc, char* argv[])
    {
        MCO_RET rc;
        unsigned int dict_no = 0;
        unsigned int struct_no = 0;
        unsigned int count;
        mco_metadict_header_t *header;
        const char * field_name = "MyField";
        mco_dict_field_info_t field_info;
        ...
         
        header = (mco_metadict_header_t *) malloc(size);
        mco_metadict_init(header, size); /* initialize the metadict */
        ...
        /* get field descriptor */
        rc = mco_dict_field_name(header, dict_no, struct_no, field_name, &field_info);
        
        printf("Field %d : %s\n", field_info.field_no, field_name);
        ...
    }

Files

Header file:

mcouda.h

Source file:

mcouda.c

Library:

libmcouda.a