[CMake] convert variable from hex to integer

[Eric Noulard]

2008/9/19 Olaf Peter <ope-devel at gmx.de>:
> Hi,
>
> for a generated version header I need to convert a given hex to an integer.
> I've wrote:
>
> set(RELEASE_LEVEL_ALPHA 0xA)    # For internal use
> set(RELEASE_LEVEL_BETA  0xB)    # For internal use
> set(RELEASE_LEVEL_GAMMA 0xC)    # For release candidates
> set(RELEASE_LEVEL_FINAL 0xF)    # For final release
>
> set(VERSION_MAJOR 0)
> set(VERSION_MINOR 1)
> set(VERSION_MICRO 0)
> set(RELEASE_LEVEL ${RELEASE_LEVEL_ALPHA})
> set(RELEASE_SERIAL 0)
>
> in CMakeLists.txt and in version.h.cmake:
>
>    enum {
>        MAJOR          = (@VERSION_MAJOR@ << 24),
>        MINOR          = (@VERSION_MINOR@ << 16),
>        MICRO          = (@VERSION_MICRO@ <<  8),
>        RELEASE_LEVEL  = (@RELEASE_LEVEL@ <<  4),
>        RELEASE_SERIAL = (@RELEASE_SERIAL@ <<  0),
>        VERSION        = MAJOR | MINOR | MICRO | RELEASE_LEVEL |
> RELEASE_SERIAL
>    };
>
> which results into:
>
>    enum {
>        MAJOR          = (0 << 24),
>        MINOR          = (1 << 16),
>        MICRO          = (0 <<  8),
>        RELEASE_LEVEL  = (0xA <<  4),
>        RELEASE_SERIAL = (0 <<  0),
>        VERSION        = MAJOR | MINOR | MICRO | RELEASE_LEVEL |
> RELEASE_SERIAL
>    };
>
> The 0xA doesn't compile.

Do you mean that the generated enum does compile with your compiler?
Which error do get?
gcc / g++ 4.1.2

do compile the preceding enum definition without trouble?


-- 
Erk