-
-
Notifications
You must be signed in to change notification settings - Fork 509
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #1723 from revoxhere/4.0
Release 4.0 pull
- Loading branch information
Showing
15 changed files
with
1,358 additions
and
119 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| #ifndef _COUNTER_H_ | ||
| #define _COUNTER_H_ | ||
|
|
||
| #include <Arduino.h> | ||
| #include <string.h> | ||
|
|
||
| template <unsigned int max_digits> | ||
| class Counter { | ||
|
|
||
| public: | ||
| Counter() { reset(); } | ||
|
|
||
| void reset() { | ||
| memset(buffer, '0', max_digits); | ||
| buffer[max_digits] = '\0'; | ||
| val = 0; | ||
| len = 1; | ||
| } | ||
|
|
||
| inline Counter &operator++() { | ||
| inc_string(buffer + max_digits - 1); | ||
| ++val; | ||
| return *this; | ||
| } | ||
|
|
||
| inline operator unsigned int() const { return val; } | ||
| inline const char *c_str() const { return buffer + max_digits - len; } | ||
| inline size_t strlen() const { return len; } | ||
|
|
||
| protected: | ||
| inline void inc_string(char *c) { | ||
| // In theory, the line below should be uncommented to avoid writing outside the buffer. In practice however, | ||
| // with max_digits set to 10 or more, we can fit all possible unsigned 32-bit integers in the buffer. | ||
| // The check is skipped to gain a small extra speed improvement. | ||
| // if (c >= buffer) return; | ||
|
|
||
| if (*c < '9') { | ||
| *c += 1; | ||
| } | ||
| else { | ||
| *c = '0'; | ||
| inc_string(c - 1); | ||
| len = max(max_digits - (c - buffer) + 1, len); | ||
| } | ||
| } | ||
|
|
||
| protected: | ||
| char buffer[max_digits + 1]; | ||
| unsigned int val; | ||
| size_t len; | ||
| }; | ||
|
|
||
| #endif |
Oops, something went wrong.