[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'sysutils' (#rtl)

# StrToInt64

Convert a string to an Int64 value.

## Declaration

Source position: sysstrh.inc line 134

`function StrToInt64(`
`const s: string`
`):Int64;`

## Description

StrToInt64 converts the string S to a Int64 value, and returns this value. The string can only contain numerical characters, and optionally a minus sign as the first character. Whitespace is not allowed.

Hexadecimal values (starting with the $ character) are supported.

## Errors

On error, a EConvertError exception is raised.

## See also

TryStrToInt64 |  | Try to convert a string to an int64 value, and report on success.
StrToInt64Def |  | Convert a string to an Int64 value, with a default value
StrToInt |  | Convert a string to an integer value.
TryStrToInt |  | Try to convert a string to an integer, and report on success.
StrToIntDef |  | Convert a string to an integer value, with a default value.