diff options
Diffstat (limited to 'src/H5T.c')
| -rw-r--r-- | src/H5T.c | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -4451,6 +4451,11 @@ H5T_path_find(const H5T_t *src, const H5T_t *dst, const char *name, table = path; } + /* Set the flag to indicate both source and destination types are compound types + * for the optimization of data reading (in H5Dio.c). */ + if(H5T_COMPOUND==H5T_get_class(src, TRUE) && H5T_COMPOUND==H5T_get_class(dst, TRUE)) + path->are_compounds = TRUE; + /* Set return value */ ret_value = path; @@ -4496,6 +4501,46 @@ H5T_path_noop(const H5T_path_t *p) /*------------------------------------------------------------------------- + * Function: H5T_path_compound_subset + * + * Purpose: Checks if the source and destination types are both compound. + * Tells whether whether the source members are a subset of + * destination, and the order is the same, and no conversion + * is needed. For example: + * struct source { struct destination { + * TYPE1 A; --> TYPE1 A; + * TYPE2 B; --> TYPE2 B; + * TYPE3 C; --> TYPE3 C; + * }; TYPE4 D; + * TYPE5 E; + * }; + * + * Return: One of the values of H5T_subset_t (can't fail). + * + * Programmer: Raymond Lu + * 8 June 2007 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +H5T_subset_t +H5T_path_compound_subset(const H5T_path_t *p) +{ + H5T_subset_t ret_value = FALSE; + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5T_path_compound_subset); + + assert(p); + + if(p->are_compounds) + ret_value = H5T_conv_struct_subset(&(p->cdata)); + + FUNC_LEAVE_NOAPI(ret_value); +} /* end H5T_path_compound_subset */ + + +/*------------------------------------------------------------------------- * Function: H5T_path_bkg * * Purpose: Get the "background" flag for the conversion path. |