goto

问题 GotoBLAS is an old package but some wonderful open source projects are depending upon it. I obtainded it from github.com: https://github.com/dofi/gotoBLAS/tree/master/Downloads But I encountered the following compiling error (wrapped for legibility), gcc -O2 -DEXPRECISION -m128bit-long-double -Wall -m64 -DF_INTERFACE_GFORT -fPIC -DSMP_SERVER -DMAX_CPU_NUMBER=2 -DASMNAME= -DASMFNAME=_ -DNAME=_ -DCNAME= -DCHAR_NAME=\"_\" -DCHAR_CNAME=\"\" -I.. -w -o linktest linktest.c ../libgoto2_barcelonap-r1

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I got this .java and i want to compile it to a .class . The only thing is that the guy who actually made this used very sloppy code. I got 14 errors and

问题 I've learned that Exception is slow: How slow are Java exceptions? but this article(http://blogs.atlassian.com/2011/05/if_you_use_exceptions_for_path_control_dont_fill_in_the_stac/) says that we can use Exception to simulate a goto statement: so I think it's ok to write my code like this: public class MyService { public Result service(int i) { Result result = new Result(); try { Util.checkCommonArguments(i); //my business logic... if ((i % 2) != 0) { throw new BizException("002", "can not be

问题 I would really appreciate if someone could give me advice,or point me to tutorial, or sample implementation, anything that could help me implement basic goto statement in ANTLR? Thanks for any help edit. ver2 of question: Say I have this tree structure: (BLOCK (PRINT 1) (PRINT 2) (PRINT 3) (PRINT 4) ) Now, I'm interested to know is there a way to select, say, node (PRINT 2) and all nodes that follow that node ((PRINT 2) (PRINT 3) (PRINT 4)) ? I'm asking this because I'm trying to implement

问题 I am creating a finite state machine in C. I learned FSM from the hardware point of view (HDL language). So I'm used a switch with one case per state. I also like to apply the Separation of Concerns concept when programing. I mean I'd like to get this flow: Calculate the next state depending on the current state and input flags Validate this next state (if the user request a transition that is not allowed) Process the next state when it is allowed As a start I implemented 3 functions: static

问题 // program to detect whether only integer has been given or not int main() { int a, b, s; printf("Enter two proper number\n"); BEGIN: s = scanf("%d %d", &a, &b); //storing the scanf return value in s if (s != 2) { printf("enter proper value\n"); goto BEGIN; } printf("The values are %d and %d ", a, b); } This program to detect whether only integer has been given or not goes into infinite loop when invalid data is entered instead of asking for new values why doesn't the goto work here? 回答1:

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 5 years ago . I'm studing C# now, and came across the following situation, what's the better pratice, duplicate the code like "EX 1" or use goto statement like "EX 2"? I don't want a personal opnion. // EX 1: switch (a) { case 3: b = 7; c = 3; // duplicate code <-| break; // | case 4: // |

问题 I'm making a batch text adventure (because it's the easiest language to do so in, requiring barely any coding experience) and I want to know if there is a way to make dynamic goto s or labels. For example, I have a dynamic health and energy system which displayes diferent health bars, depending on the health variable which is aquired from a save file on the C:/ drive. This requires quite a bit of code, and it would be much easier if I could just call a function. As an alternative, I'd like to

问题 Fortran 90 and later strongly recommend not to use goto statement. However, I still feel forced to use it in either of the two cases: Case 1 -- Instruct to re-enter the input value, e.g. program reenter 10 print*,'Enter a positive number' read*, n if (n < 0) then print*,'The number is negative!' goto 10 end if print*,'Root of the given number',sqrt(float(n)) stop end program reenter Case 2 -- To comment a large continuous part of a program (an equivalent to /* ... */ in C). Eg. print*,'This

问题 How can I JMP to a specific address in C? I want to use goto 0x10080000 This is not working, is there other way I can change the address of Program Counter?? 回答1: You can cast the address to a function pointer and then jump into: ((void (*)(void))0x10008000)(); To make it a bit more clear: typedef void (*func_t)(void); ... ((func_t)0x10008000)(); But this is a function, the compiler will emit a branch instruction that expect to return (then is up to you to make your function return or not).