iPXE
Functions
string.h File Reference

String functions. More...

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Functions

 FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
 
unsigned int digit_value (unsigned int digit)
 Calculate digit value. More...
 

Detailed Description

String functions.

Definition in file string.h.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL  )

◆ digit_value()

unsigned int digit_value ( unsigned int  character)

Calculate digit value.

Parameters
characterDigit character
Return values
digitDigit value

Invalid digits will be returned as a value greater than or equal to the numeric base.

Definition at line 383 of file string.c.

383  {
384 
385  if ( character >= 'a' )
386  return ( character - ( 'a' - 10 ) );
387  if ( character >= 'A' )
388  return ( character - ( 'A' - 10 ) );
389  if ( character <= '9' )
390  return ( character - '0' );
391  return character;
392 }

Referenced by hex_decode(), string_test_exec(), strtoul(), and strtoull().