Add EASYCSV_MEMALLOC error flag

Signed-off-by: Pradana AUMARS <paumars@courrier.dev>

src/easycsv_error.c

@@ -31,6 +31,8 @@ easycsv_error(EASYCSV_ERROR error,
   case EASYCSV_OVERMAXCOL: sprintf(s_error_msg, "int exceeds column limit of %s", error_msg); return;
   case EASYCSV_ZEROROW: sprintf(s_error_msg, "parameterised row number is zero"); return;
   case EASYCSV_ZEROCOL: sprintf(s_error_msg, "parameterised column number is zero"); return;
+  case EASYCSV_MEMALLOC: sprintf(s_error_msg, "memory allocation failure"); return;
+
   case EASYCSV_UNKNOWNIOMODE: sprintf(s_error_msg, "unknown file IO mode"); return;
   case EASYCSV_OPENFAIL: sprintf(s_error_msg, "failed to open file"); return;
   case EASYCSV_REOPENFAIL: sprintf(s_error_msg, "failed to reopen file"); return;
@@ -40,8 +42,10 @@ easycsv_error(EASYCSV_ERROR error,
   case EASYCSV_UPDATEFAIL: sprintf(s_error_msg, "CSV file has failed to update"); return;
   case EASYCSV_UPDATETEMPFAIL: sprintf(s_error_msg, "failed to update temp CSV file"); return;
   case EASYCSV_FILEPTRFAIL: sprintf(s_error_msg, "failed to move FILE pointer"); return;
+
   case EASYCSV_ROWNOTEXIST: sprintf(s_error_msg, "given row does not exist"); return;
   case EASYCSV_COLNOTEXIST: sprintf(s_error_msg, "given column does not exist"); return;
+
   case EASYCSV_PUSHCOLFAIL: sprintf(s_error_msg, "failed to push value under column"); return;
   case EASYCSV_COLNUMFAIL: sprintf(s_error_msg, "failed to determine the column number of a value in the first row"); return;
   case EASYCSV_FINDVALUEFAIL: sprintf(s_error_msg, "cannot find the value %s", error_msg); return;

src/easycsv_error.h

@@ -13,6 +13,7 @@ typedef enum EASYCSV_ERROR {
   EASYCSV_OVERMAXCOL, // int exceeds col limit
   EASYCSV_ZEROROW,
   EASYCSV_ZEROCOL,
+  EASYCSV_MEMALLOC, ///< memory allocation failure
   
   /* File input/output errors */
   EASYCSV_UNKNOWNIOMODE, // unknown file IO mode