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cpc_version (3)
  • >> cpc_version (3) ( Solaris man: Библиотечные вызовы )
  •  

    NAME

    cpc_version - coordinate CPC library
    and application versions
     
    

    SYNOPSIS

    cc [ flag... ] file... -lcpc [ library... ]
    #include <libcpc.h>
    
    uint_t cpc_version(uint_t version);
    

     

    DESCRIPTION

    The cpc_version() function takes an interface version as an argument and returns an interface version as a result. Usually, the argument will be the value of CPC_VER_CURRENT bound to the application when it was compiled.  

    RETURN VALUES

    If the version requested is still supported by the implementation, cpc_version() returns the requested version number and the application can use the facilities of the library on that platform. If the implementation cannot support the version needed by the application, cpc_version() returns CPC_VER_NONE, indicating that the application will at least need to be recompiled to operate correctly on the new platform, and may require further changes.

    If version is CPC_VER_NONE, cpc_version() returns the most current version of the library.  

    EXAMPLES

    Example 1 Protect an application from using an incompatible library.

    The following lines of code protect an application from using an incompatible library:

    if (cpc_version(CPC_VER_CURRENT) == CPC_VER_NONE) {
           /* version mismatch - library cannot translate */
           exit(1);
    }
    

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityEvolving

    MT-Level

     

    SEE ALSO

    cpc(3CPC), cpc_open(3CPC), libcpc(3LIB), attributes(5)  

    NOTES

    The cpc_version() function exists for binary compatibility only. Source containing this function will not compile. This function is obsolete and might be removed in a future release. Applications should use cpc_open(3CPC) instead.

    The version number is used only to express incompatible semantic changes in the performance counter interfaces on the given platform within a single instruction set architecture, for example, when a new set of performance counter registers are added to an existing processor family that cannot be specified in the existing cpc_event_t data structure.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    EXAMPLES
    ATTRIBUTES
    SEE ALSO
    NOTES


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