Skip to content

#define E 2.718281828459045235360287471352 #1792

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Closed
RobTillaart opened this issue Jan 5, 2014 · 6 comments
Closed

#define E 2.718281828459045235360287471352 #1792

RobTillaart opened this issue Jan 5, 2014 · 6 comments

Comments

@RobTillaart
Copy link

Can e be added to Arduino.h ?

define E = 2.718281828459045235360287471352

source - http://www.miniwebtool.com/first-n-digits-of-e/?number=30

I needed it today for a test and it was not supported where PI is

(ok lowest prio)
@ffissore
Copy link
Contributor

ffissore commented Jan 5, 2014

Can the name be a little longer? Like EULER or E_EULER? I would like to avoid issues like #1735

@RobTillaart
Copy link
Author

#1735: Agree, replacing all E's with 2.7... would be nasty.

I have found EULER as M_E in - http://www.nongnu.org/avr-libc/user-manual/group__avr__math.html -
(of course it is in math.h :)

For Arduino.h EULER is a good name, no need to include math.h for the beginners.

ffissore pushed a commit that referenced this issue Jan 6, 2014
Added new EULER constant. Fixes #1792
9fce7f1
@ffissore ffissore mentioned this issue Jan 6, 2014
Merged
@jantje
Copy link

jantje commented Jan 6, 2014

I don't want to be the bad guy but I think it should be
#define EULER 2.718281828459045235360287471352

instead of
#define EULER = 2.718281828459045235360287471352

ffissore pushed a commit that referenced this issue Jan 6, 2014
Removed = char from #define. See #1792 (comment)
dfe77f3
@ffissore
Copy link
Contributor

ffissore commented Jan 6, 2014

Thank you for being a bad guy. Shame on me. Fixed.

@RobTillaart
Copy link
Author

#define Jantje right

@jantje
Copy link

jantje commented Jan 6, 2014

blush

@cmaglie cmaglie closed this as completed Jan 7, 2014
matthijskooijman added a commit to matthijskooijman/Arduino that referenced this issue Feb 19, 2014
@matthijskooijman
Suppress "unused parameter" warnings
b196a4a 
A bunch of functions have parameters they do not use, but which cannot
be removed for API compatibility.

In syscalls_sam3.c, there are a lot of these, so this adds an "UNUSED"
macro which adds the "unused" variable attribute if supported (GCC
specific), or is just a noop on other compilers.

In CDC.cpp, there's only three of these variables, so this commit just
forces a dummy evaluation of them to suppress the warnings.

This helps towards arduino#1792.
matthijskooijman added a commit to matthijskooijman/Arduino that referenced this issue Feb 19, 2014
@matthijskooijman
Remove check that is always false
8e35973 
len is an unsigned variable, so it will never be less than 0.

This helps towards arduino#1792.
matthijskooijman added a commit to matthijskooijman/Arduino that referenced this issue Feb 19, 2014
@matthijskooijman
Include stdio.h in dtostrf.c
1c6a57e 
This makes the declaration of sprintf available, so the function is not
implicitely declared, which triggers two compiler warnings.

This helps towards arduino#1792
matthijskooijman added a commit to matthijskooijman/Arduino that referenced this issue Feb 19, 2014
@matthijskooijman
Fix two signedness warnings
4b3db72 
This helps towards arduino#1792
matthijskooijman added a commit to matthijskooijman/Arduino that referenced this issue Feb 19, 2014
@matthijskooijman
Remove const specifier from channelToTC array in analogWrite on SAM
5c6ee61 
Members of this array are later passed to functions that accept
non-const pointers. These functions probably don't modify their
arguments, so a better solution would be to update those functions to
accept const pointers. However, they look like third-party code, so that
would require changing the code again on every update. Removing const
here fixes at least the compiler warning for now.

This helps towards arduino#1792.
klightspeed pushed a commit to klightspeed/EthertenMP3Player that referenced this issue Aug 30, 2015
Removed = char from #define. See arduino/Arduino#1792 (comment)
f3123ef
klightspeed pushed a commit to klightspeed/Arduino-Libraries that referenced this issue Sep 6, 2015
Removed = char from #define. See arduino/Arduino#1792 (comment)
66087f3 
(Filtered from arduino/Arduino@dfe77f3)
facchinm pushed a commit to arduino/ArduinoCore-avr that referenced this issue Sep 20, 2017
Removed = char from #define. See arduino/Arduino#1792 (comment)
24af2f5
facchinm pushed a commit to arduino/ArduinoCore-avr that referenced this issue Sep 20, 2017
Removed = char from #define. See arduino/Arduino#1792 (comment)
e85b2c1
facchinm pushed a commit to arduino/ArduinoCore-avr that referenced this issue Sep 20, 2017
Removed = char from #define. See arduino/Arduino#1792 (comment)
435e8b6
facchinm pushed a commit to arduino/ArduinoCore-avr that referenced this issue Sep 20, 2017
Removed = char from #define. See arduino/Arduino#1792 (comment)
d83a416
facchinm pushed a commit to arduino/ArduinoCore-avr that referenced this issue Sep 20, 2017
Removed = char from #define. See arduino/Arduino#1792 (comment)
1c99bf0
rickyrockrat pushed a commit to rickyrockrat/Arduino.hardware that referenced this issue Apr 10, 2018
Removed = char from #define. See arduino/Arduino#1792 (comment)
deef5fc
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
Added new EULER constant. Fixes arduino#1792
0c4333e
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
@matthijskooijman
Suppress "unused parameter" warnings
b9add17 
A bunch of functions have parameters they do not use, but which cannot
be removed for API compatibility.

In syscalls_sam3.c, there are a lot of these, so this adds an "UNUSED"
macro which adds the "unused" variable attribute if supported (GCC
specific), or is just a noop on other compilers.

In CDC.cpp, there's only three of these variables, so this commit just
forces a dummy evaluation of them to suppress the warnings.

This helps towards arduino#1792.
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
@matthijskooijman
Remove check that is always false
52978c7 
len is an unsigned variable, so it will never be less than 0.

This helps towards arduino#1792.
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
@matthijskooijman
Include stdio.h in dtostrf.c
a13a0dd 
This makes the declaration of sprintf available, so the function is not
implicitely declared, which triggers two compiler warnings.

This helps towards arduino#1792
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
@matthijskooijman
Fix two signedness warnings
644b1f4 
This helps towards arduino#1792
ollie1400 pushed a commit to ollie1400/Arduino that referenced this issue May 2, 2022
@matthijskooijman
Remove const specifier from channelToTC array in analogWrite on SAM
cc9ef2f 
Members of this array are later passed to functions that accept
non-const pointers. These functions probably don't modify their
arguments, so a better solution would be to update those functions to
accept const pointers. However, they look like third-party code, so that
would require changing the code again on every update. Removing const
here fixes at least the compiler warning for now.

This helps towards arduino#1792.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
4 participants
@cmaglie @RobTillaart @ffissore @jantje