QB64-website/wiki/_CV.md

The _CV function is used to convert _MK$, ASCII, STRING values to numerical values.

Syntax

result = _CV(numericalType, MKstringValue$)

Parameter(s)

• numericalType is any number type: INTEGER, LONG, SINGLE, DOUBLE, _INTEGER64, _FLOAT, _BYTE or _OFFSET.
• Integer, Long, Byte and Bit values can be signed or _UNSIGNED.
• The MKstringvalue$ parameter must be a string value generated by _MK$

Description

• The MKstringvalue$ value type must match the numerical type parameter used.
• _MK$ STRING values consist of ASCII characters in the same byte length as the number value type.

Example(s)

Using the _MK$ and _CV functions:

DIM i64 AS _INTEGER64
DIM i64str AS STRING

i64 = 2 ^ 61
i64str = _MK$(_INTEGER64, i64)

PRINT "I64:"; i64
PRINT "_MK$: "; i64str

i64 = _CV(_INTEGER64, i64str)
PRINT "_CV:"; i64 

I64: 2305843009213693952
_MK$:
_CV: 2305843009213693952

The _MK$ string result may not print anything to the screen, as in the example above, unless _CONTROLCHR is set to OFF.

See Also

• _MK$ (QB64 string conversion function)
• MKI$, CVI, INTEGER
• MKL$, CVL, LONG
• MKS$, CVS, SINGLE
• MKD$, CVD, DOUBLE
• MKSMBF$, CVSMBF (Microsoft Binary Format)
• MKDMBF$, CVDMBF (Microsoft Binary Format)
• PDS (7.1) Procedures
• _CONTROLCHR