Conversions from text to numbers, used by the lexer and Bond's string standard library. More...

#include "bond/conf.h"
#include "bond/private/cstdlib.h"

Detailed Description

Conversions from text to numbers, used by the lexer and Bond's string standard library.

The default implementation forwards to strtoll, strtoull, strtof and strtod from the C++ standard library, which depend on the C locale (LC_NUMERIC). It can be replaced, e.g. with a locale-independent implementation, by defining USER_BOND_CSTDLIB_HEADER. A replacement must declare the following functions in the Bond namespace with the semantics described here:

int64_t ParseInt64(const char *str, const char **end, int base, bool *outOfRange)
uint64_t ParseUInt64(const char *str, const char **end, int base, bool *outOfRange)
float ParseFloat(const char *str, const char **end, bool *outOfRange)
double ParseDouble(const char *str, const char **end, bool *outOfRange)

Each function parses the longest prefix of str that forms a number, as the corresponding strto* function does. If end is not null, *end is set to the first character that was not parsed, or to str if no number was parsed. If outOfRange is not null, *outOfRange is set to whether the magnitude of the number is too large to be represented, in which case the integer functions return the closest representable value and the floating point ones return a signed infinity. Floating point underflow is not reported.