2012-04-24 13:13:42 +00:00
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#ifndef NALL_ATOI_HPP
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#define NALL_ATOI_HPP
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Update to v089r17 release.
byuu says:
This implements the spec from the XML part 3 thread:
http://board.byuu.org/viewtopic.php?f=16&t=2998
It's also propagated the changes to nall and purify, so you can test
this one.
This is basically it, after years of effort I feel I finally have
a fully consistent and logical XML board format.
The only things left to change will be: modifications if emulation turns
out to be incorrect (eg we missed some MMIO mirrors, or mirrored too
much), and new additions.
And of course, I'm giving it a bit of time for good arguments against
the format.
Other than that, this release removes linear_vector and pointer_vector,
as vector is better than linear_vector and I've never used
pointer_vector.
vector also gets move(), which is a way to use move-semantics across
types. It lets you steal the underlying memory pool, effectively
destroying the vector without a copy.
This works really nicely with the move for read() functions to return
vector<uint8> instead of taking (uint8_t*&, unsigned&) parameters.
2012-07-15 13:02:27 +00:00
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#include <nall/stdint.hpp>
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2012-04-24 13:13:42 +00:00
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namespace nall {
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//note: this header is intended to form the base for user-defined literals;
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//once they are supported by GCC. eg:
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//unsigned operator "" b(const char *s) { return binary(s); }
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//-> signed data = 1001b;
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//(0b1001 is nicer, but is not part of the C++ standard)
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constexpr inline uintmax_t binary_(const char *s, uintmax_t sum = 0) {
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return (
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*s == '0' || *s == '1' ? binary_(s + 1, (sum << 1) | *s - '0') :
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sum
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);
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}
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constexpr inline uintmax_t octal_(const char *s, uintmax_t sum = 0) {
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return (
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*s >= '0' && *s <= '7' ? octal_(s + 1, (sum << 3) | *s - '0') :
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sum
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);
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}
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constexpr inline uintmax_t decimal_(const char *s, uintmax_t sum = 0) {
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return (
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*s >= '0' && *s <= '9' ? decimal_(s + 1, (sum * 10) + *s - '0') :
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sum
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);
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}
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constexpr inline uintmax_t hex_(const char *s, uintmax_t sum = 0) {
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return (
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*s >= 'A' && *s <= 'F' ? hex_(s + 1, (sum << 4) | *s - 'A' + 10) :
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*s >= 'a' && *s <= 'f' ? hex_(s + 1, (sum << 4) | *s - 'a' + 10) :
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*s >= '0' && *s <= '9' ? hex_(s + 1, (sum << 4) | *s - '0') :
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sum
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);
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}
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//
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constexpr inline uintmax_t binary(const char *s) {
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return (
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*s == '0' && *(s + 1) == 'B' ? binary_(s + 2) :
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*s == '0' && *(s + 1) == 'b' ? binary_(s + 2) :
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*s == '%' ? binary_(s + 1) :
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binary_(s)
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);
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}
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constexpr inline uintmax_t octal(const char *s) {
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return (
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octal_(s)
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);
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}
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constexpr inline intmax_t integer(const char *s) {
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return (
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*s == '+' ? +decimal_(s + 1) :
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*s == '-' ? -decimal_(s + 1) :
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decimal_(s)
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);
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}
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constexpr inline uintmax_t decimal(const char *s) {
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return (
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decimal_(s)
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);
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}
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constexpr inline uintmax_t hex(const char *s) {
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return (
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*s == '0' && *(s + 1) == 'X' ? hex_(s + 2) :
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*s == '0' && *(s + 1) == 'x' ? hex_(s + 2) :
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*s == '$' ? hex_(s + 1) :
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hex_(s)
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);
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}
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constexpr inline intmax_t numeral(const char *s) {
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return (
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*s == '0' && *(s + 1) == 'X' ? hex_(s + 2) :
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*s == '0' && *(s + 1) == 'x' ? hex_(s + 2) :
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*s == '0' && *(s + 1) == 'B' ? binary_(s + 2) :
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*s == '0' && *(s + 1) == 'b' ? binary_(s + 2) :
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*s == '0' ? octal_(s + 1) :
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*s == '+' ? +decimal_(s + 1) :
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*s == '-' ? -decimal_(s + 1) :
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decimal_(s)
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);
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}
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inline double fp(const char *s) {
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return atof(s);
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}
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}
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#endif
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