Next: String Input Conversions, Previous: Table of Input Conversions, Up: C-Style I/O Functions [Contents][Index]

#### 14.2.14 Numeric Input Conversions

This section describes the `scanf` conversions for reading numeric values.

The ‘`%d`’ conversion matches an optionally signed integer in decimal radix.

The ‘`%i`’ conversion matches an optionally signed integer in any of the formats that the C language defines for specifying an integer constant.

For example, any of the strings ‘`10`’, ‘`0xa`’, or ‘`012`’ could be read in as integers under the ‘`%i`’ conversion. Each of these specifies a number with decimal value `10`.

The ‘`%o`’, ‘`%u`’, and ‘`%x`’ conversions match unsigned integers in octal, decimal, and hexadecimal radices, respectively.

The ‘`%X`’ conversion is identical to the ‘`%x`’ conversion. They both permit either uppercase or lowercase letters to be used as digits.

Unlike the C language `scanf`, Octave ignores the ‘`h`’, ‘`l`’, and ‘`L`’ modifiers.