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39 * \brief Implementation of functions in selvalue.h.
47 #include <indexutil.h>
52 * \param[out] val Output structure
54 * The type of \p val is not touched.
55 * Any contents of \p val are discarded without freeing.
58 _gmx_selvalue_clear(gmx_ana_selvalue_t *val)
66 * \param[in,out] val Value structure to allocate.
67 * \param[in] n Maximum number of values needed.
68 * \returns Zero on success.
70 * Reserves memory for the values within \p val to store at least \p n values,
71 * of the type specified in the \p val structure.
73 * If the type is \ref POS_VALUE or \ref GROUP_VALUE, memory is reserved for
74 * the data structures, but no memory is reserved inside these newly allocated
76 * Similarly, for \ref STR_VALUE values, the pointers are set to NULL.
77 * For other values, the memory is uninitialized.
80 _gmx_selvalue_reserve(gmx_ana_selvalue_t *val, int n)
84 if (val->nalloc == -1)
89 if (!val->u.ptr || val->nalloc < n)
93 case INT_VALUE: srenew(val->u.i, n); break;
94 case REAL_VALUE: srenew(val->u.r, n); break;
97 for (i = val->nalloc; i < n; ++i)
104 for (i = val->nalloc; i < n; ++i)
106 gmx_ana_pos_clear(&val->u.p[i]);
111 for (i = val->nalloc; i < n; ++i)
113 gmx_ana_index_clear(&val->u.g[i]);
116 case NO_VALUE: break;
124 * \param[in,out] val Value structure to allocate.
125 * \param[in] ptr Pointer where the values should be stored.
126 * \returns Zero on success.
128 * Automatic memory management is disabled for \p ptr, unless \p ptr is NULL.
131 _gmx_selvalue_setstore(gmx_ana_selvalue_t *val, void *ptr)
134 val->nalloc = (ptr ? -1 : 0);
139 * \param[in,out] val Value structure to allocate.
140 * \param[in] ptr Pointer where the values should be stored.
141 * \param[in] nalloc Number of values allocated for \p ptr.
142 * \returns Zero on success.
145 _gmx_selvalue_setstore_alloc(gmx_ana_selvalue_t *val, void *ptr, int nalloc)
148 val->nalloc = nalloc;