Q25993: "Type Mismatch" Using PRINT VAL("100.1 %") or VAL("E%")
Article: Q25993 Product(s): See article Version(s): 4.00 4.00b 4.50 Operating System(s): MS-DOS Keyword(s): ENDUSER | B_BasicCom B_GWBasicI | mspl13_basic Last Modified: 26-MAR-1990 A "Type Mismatch" error occurs for the PRINT VAL("100.0 %") statement, because the percent (%) symbol can be appended only to integer constants, and 100.0 is a floating-point constant. BASIC notices the "%" symbol despite its separation with a space from the floating-point constant 100.0. "Type Mismatch" also properly occurs for PRINT VAL("E%") and PRINT VAL("D%"), where "E" represents single-precision exponential notation, and "D" represents double-precision exponential notation. The following statements print 100.0 without error: PRINT VAL("100.0 *") PRINT VAL("100.0 !") PRINT VAL("100.0 #") This behavior occurs in Microsoft QuickBASIC Versions 4.00, 4.00b, 4.50 for MS-DOS, and in Microsoft BASIC Compiler Versions 6.00 and 6.00b for MS-DOS and OS/2. Please note that QuickBASIC Version 3.00 and Microsoft GW-BASIC Versions 3.20, 3.22, and 3.23 fail to give an error for the statement PRINT VAL("100.0 %").
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