Change Details

**Changes:** - change doucumentation of `length()` and correctly represent newline - take more care to never pass a sign-extended char to the <ctype.h> `isXXX()` functions - more tweaks to fix for `read()` problems - Correct `input_char` & update documentation for base 36 input - return a 0 (zero value; instead of reporting an error) for the `L` command when the named register stack is empty & document behavior - be more careful in specifying how the precision of the result of the `V` (square root) command is determined - don't prematurely exit from stack-unwinding `Q` command - ensure that `DC_FAIL API` value does not collide with any internal `dc_status` code - clarify that `Z` command reports on digits in decimal representation in number (as opposed to ambiguous, perhaps "o"base, digits) - Fix two memory leaks - Extend input base to allow for base 36 with Z being the largest input digit. Now, ZZZZZ will be the largest 5 digit number given the allowable bases - `dc_evalstr()` incorrectly used `len-1`, to omit counting the closing `]`, unconditionally, even when string parsing terminated prematurely (end-of-string reached before closing `]` was found) - `dc_evalstr()` was inappropriately/prematurely returning when the top-of-stack was a number - Implement & document `R`, general stack rotation command - Explicitly flush output, instead of requesting line buffering, as the user may be emitting a prompt (without a trailing newline) within an inferior process. - Add a `bc_exit()` routine that resets the editline state in one place to exit. Removed editline state reset in other places. - take a more nuanced approach to handling `SIGINT` - the code is now released under GPL-3, and documentation under FDL-1.2 - detect, report (if possible), and exit with error if any I/O errors are encountered

Update bc to 1.07.1**Changes:** - change doucumentation of `length()` and correctly represent newline - take more care to never pass a sign-extended char to the <ctype.h> `isXXX()` functions - more tweaks to fix for `read()` problems - Correct `input_char` & update documentation for base 36 input - return a 0 (zero value; instead of reporting an error) for the `L` command when the named register stack is empty & document behavior - be more careful in specifying how the precision of the result of the `V` (square root) command is determined - don't prematurely exit from stack-unwinding `Q` command - ensure that `DC_FAIL API` value does not collide with any internal `dc_status` code - clarify that `Z` command reports on digits in decimal representation in number (as opposed to ambiguous, perhaps "o"base, digits) - Fix two memory leaks - Extend input base to allow for base 36 with Z being the largest input digit. Now, ZZZZZ will be the largest 5 digit number given the allowable bases - `dc_evalstr()` incorrectly used `len-1`, to omit counting the closing `]`, unconditionally, even when string parsing terminated prematurely (end-of-string reached before closing `]` was found) - `dc_evalstr()` was inappropriately/prematurely returning when the top-of-stack was a number - Implement & document `R`, general stack rotation command - Explicitly flush output, instead of requesting line buffering, as the user may be emitting a prompt (without a trailing newline) within an inferior process. - Add a `bc_exit()` routine that resets the editline state in one place to exit. Removed editline state reset in other places. - take a more nuanced approach to handling `SIGINT` - the code is now released under GPL-3, and documentation under FDL-1.2 - detect, report (if possible), and exit with error if any I/O errors are encountered