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Teledyne LeCroy USB File Based Decode Manual User Manual

Page 14

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10

C

OMPUTER

A

CCESS

T

ECHNOLOGY

C

ORPORATION

USB R

EQUEST

D

EFINITION

(.

REQ

) F

ILES

Reference Manual

these results can be achieved:

Format Conversion Characters

These are standard C language

printf

format conversion characters:

A conversion specification begins with a percent sign (

%

) and ends with a conver-

sion character. The following optional items can be included, in order, between the

%

and the conversion character to further control argument formatting:

Flag characters: these are used to further specify the formatting. There are five flag
characters:

A minus sign (

-

)will cause an argument to be left-aligned in its field. Without the

minus sign, the default position of the argument is right-aligned.

A plus sign (

+

) will insert a plus sign before a positive signed integer. This only works

with the conversion characters

d

and

i

.

A space will insert a space before a positive signed integer. This only works with the
conversion characters

d

and

i

. If both a space and a plus sign are used, the space flag

will be ignored.

A hash mark (

#

) will prepend

0x

or

0X

to a hexadecimal number if used with

x

or

X

.

A zero (

0

) will pad the field with zeros instead of with spaces.

Field width specification: this is a positive integer that defines the field width, in spaces,
of the converted argument. If the number of characters in the argument is smaller than the
field width, then the field is padded with spaces. If the argument has more characters than
the field width has spaces, then the field will expand to accommodate the argument.

Figure 6: Default trace output with

formatting specifications

Code

Type

Output

c

Integer

Character

d

Integer

Signed decimal integer.

I

Integer

Signed decimal integer

u

Integer

Unsigned decimal integer

x

Integer

Unsigned hexadecimal integer, using “abcdef.”

X

Integer

Unsigned hexadecimal integer, using “ABCDEF.”

Table 1: Format conversion characters