VAL() recognizes and correctly parses leading spaces, and plus and minus signs. VAL() ignores alphabetic characters after the number, converting VAL(“234abc”) to 234. VAL() returns a number based on its evaluation of the numeric portion of a string. We think this should result in a "Numeric Overflow" error, not in a string that looks different from the others. You cannot assume that an expression STR(x,8,3) will always have the decimal point four spaces from the right end of the string-STR(1234.567,8,3) returns "1234.567", but STR(123456.7,8,3) returns "123456.7". STR() first fits the whole number portion into the string, and what is left over is used for the decimal portion. The documentation finally matches the behavior in VFP 7. In actuality, STR() rounds fractional values ending in. In versions prior to VFP 7, Help claims that the function truncates values. If you’re performing bulk conversions of numeric data to strings, make sure that you check for a return of asterisks or one containing the letter “E”. This can be as useless as asterisks, because the exact value of the number has been lost for display purposes. Both versions are mathematically correct, but the string returned by the later versions more closely resembles what we learned was “scientific notation” in school: ? STR(1234567890123,7) & Returns ".1E+13" in VFP 3 However, the string disagrees slightly between VFP 3 and later versions. In all cases, a string is returned in scientific notation. If the numeric value has 10 digits to the left of the decimal place and the resulting string length is specified as at least seven, one of two things happens. If the number is less than 10 billion or the specified size is less than seven characters, asterisks are returned. If the length is less than the number of digits to the left of the decimal place, one of two things happens. Optionally, the length and number of decimal places of the field may be specified. STR() takes a numeric value and returns a character value. Preceding plus or minus signs recognized. Limited to a maximum of 18.Ī numeric value expressed in a string. If nDecimals is greater than (nLength minus 2), the length takes priority and no more than (nLength minus 2) decimal places are returned. The overall length of the resulting field, including preceding minus signs and any decimal places. Both process null values correctly, returning nulls. STR() and VAL() are reciprocal functions for converting numeric values to strings and vice versa. Tells you the inside scoop on every command, function, property, event and method of Visual FoxPro. Tells the charset converter the target charset for a conversion.An irreverent look at how Visual FoxPro really works. Unicode (also known as UTF16LE or simply UTF16) Tells the charset converter the charset of the input data for a conversion. Var obj = new ActiveXObject("Chilkat_9_5_0.Charset") Li_rc = lole_object.ConnectToNewObject("Chilkat_9_5_0.Charset")ĮXEC = sp_OACreate 'Chilkat_9_5_0.Charset', OUT LoObject = CreateObject('Chilkat_9_5_0.Charset') Set obj = CreateObject("Chilkat_9_5_0.Charset") $obj = ObjCreate("Chilkat_9_5_0.Charset") Set obj = Server.CreateObject("Chilkat_9_5_0.Charset") This allows programs to operate correctly regardless of the locale, OS version, or other factors. It does not depend on what code pages may or may not be installed on a particular computer. This software is unique in that the data required for converting to/from the supported charsets is entirely embedded witin the Chilkat DLL/library. Charset ActiveX Reference Documentation Charset Current Version: 9.5.0.95Ī component/class for converting character data from one encoding to another.
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