functions to get data type as a character string

python/obitools3/obidms/obidmscolumn/capidmscolumn.pxd

@@ -12,6 +12,8 @@ cdef extern from "obitypes.h" nogil:
     ctypedef char obichar_t  
     ctypedef size_t obiidx_t
 
+    char* name_data_type(int data_type)
+
 
 cdef extern from "obidmscolumn.h" nogil:
     struct OBIDMS_column_t:
@@ -35,6 +37,6 @@ cdef extern from "obidmscolumn.h" nogil:
 cdef class OBIDMS_column:
     cdef OBIDMS_column_p pointer
     cdef OBIDMS_p dms
-    cdef OBIType_t data_type
+    cdef str data_type   # keep as OBIType_t? both?
     cdef str dms_name
     cdef str column_name

python/obitools3/obidms/obidmscolumn/capidmscolumn.pyx

@@ -14,7 +14,7 @@ cdef class OBIDMS_column:
         dms_name_b = dms_name.encode(encoding='UTF-8')
         self.dms_name = dms_name
         self.column_name = column_name
-        self.data_type = type
+        self.data_type = (name_data_type(type)).decode('UTF-8')
         if create :
             dms = obi_dms(dms_name_b)
             self.dms = dms

src/obitypes.c

@@ -5,7 +5,15 @@
  *      Author: coissac
  */
 
-#include <obitypes.h>
+
+#include <string.h>
+
+#include "obitypes.h"
+#include "obidebug.h"
+#include "obierrno.h"
+
+
+#define DEBUG_LEVEL 0
 
 
 size_t obi_sizeof(OBIType_t type)
@@ -53,3 +61,35 @@ size_t obi_array_sizeof(OBIType_t type, size_t nb_elements, size_t nb_elements_p
 	return size;
 }
 
+
+char* name_data_type(int data_type)
+{
+	char* name = NULL;
+
+	switch (data_type)
+	{
+		case OBI_VOID:  name = strdup("OBI_VOID");
+						break;
+
+		case OBI_INT:   name = strdup("OBI_INT");
+						break;
+
+		case OBI_FLOAT: name = strdup("OBI_FLOAT");
+						break;
+
+		case OBI_CHAR:  name = strdup("OBI_CHAR");
+						break;
+
+		case OBI_IDX:   name = strdup("OBI_IDX");
+						break;
+	}
+
+	if (name == NULL)
+		obidebug(1, "Problem with the data type");
+
+	return name;
+}
+
+
+
+

src/obitypes.h

@@ -17,10 +17,10 @@
 #define OBIFloat_NA (NAN)
 #define OBIIdx_NA (SIZE_MAX)
 
+
 /**
  * @brief enum for the boolean OBIType.
  */
-
 typedef enum {
     FALSE      = 0,
     TRUE       = 1,
@@ -31,7 +31,6 @@ typedef enum {
 /**
  * @brief enum OBITypes for the data type of the OBIDMS columns.
  */
-
 typedef enum OBIType {
 	OBI_VOID    = 0,     		/**< data type not specified */
 	OBI_INT,			    	/**< a signed integer value (C type : int32_t) */
@@ -40,11 +39,13 @@ typedef enum OBIType {
 	OBI_IDX					    /**< an index in a data structure (C type : size_t) */
 } OBIType_t, *OBIType_p;
 
+
 typedef int32_t obiint_t;
 typedef double obifloat_t;
 typedef char obichar_t;
 typedef size_t obiidx_t;
 
+
 /**
  * @brief returns the memory size in bytes of an OBIType
  *
@@ -58,6 +59,7 @@ typedef size_t obiidx_t;
  */
 size_t obi_sizeof(OBIType_t type);
 
+
 /**
  * @brief returns the size requested to store an array of OBIType
  *
@@ -75,4 +77,20 @@ size_t obi_sizeof(OBIType_t type);
  */
 size_t obi_array_sizeof(OBIType_t type, size_t nbelements, size_t nb_elements_per_line);
 
+
+/**
+ * @brief returns the name in the form of a character string of an OBIType
+ *
+ *
+ * @param data_type the OBIType code used as query
+ *
+ * @return the name of the OBIType
+ * @retval NULL on error (unknown type or error allocating the memory for the character string)
+ *
+ * @since August 2015
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+char* name_data_type(int data_type);
+
+
 #endif /* OBITYPES_H_ */