_atold

Syntax

#include <stdlib.h>

long double _atold(const char *string);

Description

Convert as much of the string as possible to an equivalent long double precision real number.

This function is almost like _strtold(string, NULL) (see section _strtold).

Return Value

The equivalent value, or zero if the string does not represent a number.

Portability

not ANSI, not POSIX

Example

main(int argc, char **argv)
{
  long double d = _atold(argv[1]);
  ...

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