SW006014 Microchip Technology, SW006014 Datasheet - Page 25

• Manufacturer Part Number: SW006014
• Description: C COMPILER MPLAB FOR PIC24 MCU
• Manufacturer: Microchip Technology
• Type: MPLAB® C Compilerr
• Series: PIC24r

Specifications of SW006014

• Supported Families: PIC24
• Core Architecture: PIC
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC24
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: PIC24
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
isxdigit (Continued)
Example:
tolower
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Example:
#include <ctype.h> /* for isxdigit */
#include <stdio.h> /* for printf */
int main(void)
{
}
Output:
B is a hexadecimal digit
t is NOT a hexadecimal digit
Convert a character to a lower case alphabetical character.
<ctype.h>
int tolower (int c);
c
Returns the corresponding lower case alphabetical character if the
argument was originally upper case; otherwise, returns the original
character.
Only upper case alphabetical characters may be converted to lower
case.
#include <ctype.h> /* for tolower */
#include <stdio.h> /* for printf */
int main(void)
{
}
int ch;
ch = 'B';
if (isxdigit(ch))
else
ch = 't';
if (isxdigit(ch))
else
int ch;
ch = 'B';
printf("B changes to lower case %c\n",
ch = 'b';
printf("b remains lower case %c\n",
ch = '@';
printf("@ has no lower case, ");
printf("so %c is returned\n", tolower(ch));
printf("B is a hexadecimal digit\n");
printf("B is NOT a hexadecimal digit\n");
printf("t is a hexadecimal digit\n");
printf("t is NOT a hexadecimal digit\n");
tolower(ch));
tolower(ch));
The character to convert to lower case.
DS51456E-page 21