Use strtold function to convert string to long double
Syntax
C strtold function has the following syntax.
long double strtold(const char * restrict start, char restrict ** restrict end);Header
C strtold function is from header file stdlib.h.
Description
C strtold function converts the string into a long double and returns the result.
Example
Use C strtold function to convert string to long double
#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
// www.ja v a 2 s .co m
int main(void)
{
char *end, *start = "100.00 AAA 200.00 BBBB";
end = start;
while(*start) {
printf("%f, ", strtold (start, &end));
printf("Remainder: %s\n" ,end);
start = end;
/* move past the non-digits */
while(!isdigit(*start) && *start) start++;
}
return 0;
}
The code above generates the following result.
