Converts the prefix of a decimal string to the nearest double-precision floating point number.
#include <prdtoa.h> PRFloat64 PR_strtod(const char *s00, char **se);
The function has these parameters:
- The input string to be scanned.
- A pointer that, if not
NULL, will be assigned the address of the last character scanned in the input string.
The result of the conversion is a
PRFloat64 value equivalent to the input string. If the parameter
se is not
NULL the location it references is also set.
PR_strtod converts the prefix of the input decimal string pointed to by
s00 to a nearest double-precision floating point number. Ties are broken by the IEEE round-even rule. The string is scanned up to the first unrecognized character. If the value of
se is not (
PR_strtod stores a pointer to the character terminating the scan in
*se. If the answer would overflow, a properly signed
HUGE_VAL (infinity) is returned. If the answer would underflow, a properly signed 0 is returned. In both cases,
PR_GetError() returns the error code
PR_RANGE_ERROR. If no number can be formed,
se is set to
s00, and 0 is returned.