SW006014 Microchip Technology, SW006014 Datasheet - Page 99

• 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.
atoi
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Example:
atol
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Converts a string to an integer.
<stdlib.h>
int atoi(const char *s);
s
Returns the converted integer if successful; otherwise, returns 0.
The number may consist of the following:
optional whitespace, followed by an optional sign then a sequence
of one or more digits. The conversion stops when the first unrecog-
nized character is reached. The conversion is equivalent to (int)
strtol(s,0,10) except it does no error checking so errno will not
be set.
#include <stdio.h>
#include <stdlib.h> /* for atoi
int main(void)
{
}
Output:
String = " -127"
String = "Number1"
Converts a string to a long integer.
<stdlib.h>
long atol(const char *s);
s
Returns the converted long integer if successful; otherwise, returns 0
The number may consist of the following:
optional whitespace, followed by an optional sign then a sequence
of one or more digits. The conversion stops when the first unrecog-
nized character is reached. The conversion is equivalent to (int)
strtol(s,0,10) except it does no error checking so errno will not
be set.
[whitespace] [sign] digits
char a[] = " -127";
char b[] = "Number1";
int x;
x = atoi(a);
printf("String = \"%s\"\tint = %d\n", a, x);
x = atoi(b);
printf("String = \"%s\"\tint = %d\n", b, x);
[whitespace] [sign] digits
string to be converted
string to be converted
/* for printf */
int = -127
int = 0
*/
DS51456E-page 95