function

问题 I want a std::vector to contain some functions, and that more functions can be added to it in realtime. All the functions will have a prototype like this: void name(SDL_Event *event); I know how to make an array of functions, but how do I make a std::vector of functions? I've tried this: std::vector<( *)( SDL_Event *)> functions; std::vector<( *f)( SDL_Event *)> functions; std::vector<void> functions; std::vector<void*> functions; But none of them worked. Please help 回答1: Try using a typedef:

问题 I am trying to solve a problem that requires writing a function called repeat_prod(n), that gets an integer n and returns the result of the following function: P = 1*1.2*1.4*.... (1+0.2 (n-1)) for exemple if n is 6: repeat_prod(6) ans = 9.6768 I tried the following: function P = repeat_prod(n) for 1:n-1 P = (1+0.2*(n-1)); end end But it does not run. How can I get the loop to work? 回答1: The logic within your function should be something like below function P = repeat_prod(n) P = 1; % initial

问题 I am trying to solve a problem that requires writing a function called repeat_prod(n), that gets an integer n and returns the result of the following function: P = 1*1.2*1.4*.... (1+0.2 (n-1)) for exemple if n is 6: repeat_prod(6) ans = 9.6768 I tried the following: function P = repeat_prod(n) for 1:n-1 P = (1+0.2*(n-1)); end end But it does not run. How can I get the loop to work? 回答1: The logic within your function should be something like below function P = repeat_prod(n) P = 1; % initial

问题 I am trying to create a generic function in Fortran based on the value to be returned, that is, depending on if the output of the function is to be assigned to a single precision real or to a double precision real. The code is: MODULE kk_M USE ISO_FORTRAN_ENV IMPLICIT NONE INTEGER, PARAMETER :: sp = REAL32 INTEGER, PARAMETER :: dp = REAL64 INTERFACE use_func MODULE PROCEDURE use_sp_func MODULE PROCEDURE use_dp_func END INTERFACE use_func INTERFACE use_sub MODULE PROCEDURE use_sp_sub MODULE

问题 I am trying to create a generic function in Fortran based on the value to be returned, that is, depending on if the output of the function is to be assigned to a single precision real or to a double precision real. The code is: MODULE kk_M USE ISO_FORTRAN_ENV IMPLICIT NONE INTEGER, PARAMETER :: sp = REAL32 INTEGER, PARAMETER :: dp = REAL64 INTERFACE use_func MODULE PROCEDURE use_sp_func MODULE PROCEDURE use_dp_func END INTERFACE use_func INTERFACE use_sub MODULE PROCEDURE use_sp_sub MODULE

问题 This question already has answers here : What are variable annotations in Python 3.6? (2 answers) Closed last year . I just came across this function: def splitComma(line: str): splits = Utils.COMMA_DELIMITER.split(line) return "{}, {}".format(splits[1], splits[2]) I ame aware that you can separate parameters by , or can set a value within a parameter like a=39 but I have not seen a colon like line:str. I have checked the function definition online but could not find anything like this. What

问题 This question already has answers here : What are variable annotations in Python 3.6? (2 answers) Closed last year . I just came across this function: def splitComma(line: str): splits = Utils.COMMA_DELIMITER.split(line) return "{}, {}".format(splits[1], splits[2]) I ame aware that you can separate parameters by , or can set a value within a parameter like a=39 but I have not seen a colon like line:str. I have checked the function definition online but could not find anything like this. What

问题 How would I go about writing my own eqv? or equal? in scheme? Would I just do a cond and look for symbol?, number?, etc and return the appropriate #t or #f? 回答1: As per R5RS, the minimum specifications for an implementation of eqv? (when passed two arguments obj1 and obj2 ) to evaluate to #t are: obj1 and obj2 are both #t or both #f . (how two boolean literals evaluate to the same value is implementation dependent). obj1 and obj2 are both symbols and (string=? (symbol->string obj1) (symbol-

问题 I want to see and customize the python defined functions; describe, skew, and kurtosis. I can't seem to find how to access these functions codes though. I am using Jupyter Lab. Thank you for any help. 回答1: Seems like you're talking about SciPy functions. Here are the definitions: describe, skew, kurtosis. I found them via the SciPy documentation -- the [source] button. You can customize them by copying the code and changing it in your own module. 回答2: SOLVED NOW; 1- I checked the notes of

问题 I want to see and customize the python defined functions; describe, skew, and kurtosis. I can't seem to find how to access these functions codes though. I am using Jupyter Lab. Thank you for any help. 回答1: Seems like you're talking about SciPy functions. Here are the definitions: describe, skew, kurtosis. I found them via the SciPy documentation -- the [source] button. You can customize them by copying the code and changing it in your own module. 回答2: SOLVED NOW; 1- I checked the notes of