/ ConvertType: what this function does is to determine the type to */ which should be converted a value so no precision would be lost. */ This can be a numeric type if num is true or non numeric if false. */ Note: this is an ultra simplified version of this function that */ should become more and more complex as new types are added. */ Not evaluated types (TYPE_VOID or TYPE_UNDEF) re
| 294 | /* IsType... functions so match does not prevent correct setting. */ |
| 295 | /***********************************************************************/ |
| 296 | int ConvertType(int target, int type, CONV kind, bool match) |
| 297 | { |
| 298 | switch (kind) { |
| 299 | case CNV_CHAR: |
| 300 | if (match && (!IsTypeChar(target) || !IsTypeChar(type))) |
| 301 | return TYPE_ERROR; |
| 302 | |
| 303 | return TYPE_STRING; |
| 304 | case CNV_NUM: |
| 305 | if (match && (!IsTypeNum(target) || !IsTypeNum(type))) |
| 306 | return TYPE_ERROR; |
| 307 | |
| 308 | return (target == TYPE_DOUBLE || type == TYPE_DOUBLE) ? TYPE_DOUBLE |
| 309 | : (target == TYPE_DATE || type == TYPE_DATE) ? TYPE_DATE |
| 310 | : (target == TYPE_BIGINT || type == TYPE_BIGINT) ? TYPE_BIGINT |
| 311 | : (target == TYPE_INT || type == TYPE_INT) ? TYPE_INT |
| 312 | : (target == TYPE_SHORT || type == TYPE_SHORT) ? TYPE_SHORT |
| 313 | : TYPE_TINY; |
| 314 | default: |
| 315 | if (target == TYPE_ERROR || target == type) |
| 316 | return type; |
| 317 | |
| 318 | if (match && ((IsTypeChar(target) && !IsTypeChar(type)) || |
| 319 | (IsTypeNum(target) && !IsTypeNum(type)))) |
| 320 | return TYPE_ERROR; |
| 321 | |
| 322 | return (target == TYPE_DOUBLE || type == TYPE_DOUBLE) ? TYPE_DOUBLE |
| 323 | : (target == TYPE_DATE || type == TYPE_DATE) ? TYPE_DATE |
| 324 | : (target == TYPE_BIGINT || type == TYPE_BIGINT) ? TYPE_BIGINT |
| 325 | : (target == TYPE_INT || type == TYPE_INT) ? TYPE_INT |
| 326 | : (target == TYPE_SHORT || type == TYPE_SHORT) ? TYPE_SHORT |
| 327 | : (target == TYPE_STRING || type == TYPE_STRING) ? TYPE_STRING |
| 328 | : (target == TYPE_TINY || type == TYPE_TINY) ? TYPE_TINY |
| 329 | : TYPE_ERROR; |
| 330 | } // endswitch kind |
| 331 | |
| 332 | } // end of ConvertType |
| 333 | |
| 334 | /***********************************************************************/ |
| 335 | /* AllocateConstant: allocates a constant Value. */ |
no test coverage detected