User manual

Library Functions
 2012 Microchip Technology Inc. DS52053B-page 369
Description
The strstr() function locates the first occurrence of the sequence of characters in the
string pointed to by
s2 in the string pointed to by s1.
The stristr() routine is the case-insensitive version of this function.
Example
#include <stdio.h>
#include <string.h>
void
main (void)
{
printf("%d\n", strstr("This is a string", "str"));
}
Return Value
to the located string or a null if the string was not found.
STRTOD
Synopsis
#include <stdlib.h>
double strtok (const char * s, const char ** res)
Description
Parse the string s converting it to a double floating-point type. This function converts
the first occurrence of a substring of the input that is made up of characters of the
expected form after skipping leading white-space characters. If res is not NULL, it will
be made to point to the first character after the converted sub-string.
Example
#include <stdio.h>
#include <strlib.h>
void
main (void)
{
char buf[] = "35.7 23.27";
char * end;
double in1, in2;
in1 = strtod(buf, &end);
in2 = strtod(end, NULL);
printf("in comps: %f, %f\n", in1, in2);
}
See Also
atof()
Return Value
Returns a double representing the floating-point value of the converted input string.