ASCII_IS_BLANK() / ASCII_IsBlank()

Determines whether a character is a standard blank character.

Files

lib_ascii.h/lib_ascii.c

Prototypes

          ASCII_IS_BLANK(ch);
           
          CPU_BOOLEAN  ASCII_IsBlank (CPU_CHAR  ch);

Arguments

ch

Character to examine.

Returned Value

DEF_YES,

if character is a standard blank character;

DEF_NO,

if character is not a standard blank character.

Required Configuration

None.

Notes / Warnings

ISO/IEC 9899:TC2, Section 7.4.1.3.(2) states that “isblank() returns true only for the standard blank characters”. ISO/IEC 9899:TC2, Section 7.4.1.3.(2) defines “the standard blank characters” as the “space (' '), and horizontal tab ('\t')”.

Example Usage

          CPU_CHAR     ch;
          CPU_BOOLEAN  blank;


          ch    = ASCII_CHAR_LINE_FEED;
          blank = ASCII_IS_BLANK(ch);