openblas_version.c

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#include <string.h>
#include <stdio.h>
 
#if defined(__APPLE__)
extern char *openblas_get_config(void) __attribute__((weak_import));
#else
extern char *openblas_get_config(void) __attribute__((weak));
#endif
 
int openblas_get_version(int *major, int *minor, int *patch) {
    // Permissive rather than defensive. Assume if openblas configuration
    // cannot be retrieved, we are probably not using openblas as a backend
    if (!openblas_get_config) {
        return 1;
    }
    /* string guaranteed to start with OpenBLAS:
       static char* openblas_config_str=""
       "OpenBLAS "
       VERSION
       " "
    See https://github.com/OpenMathLib/OpenBLAS/blob/develop/driver/others/openblas_get_config.c 
     */
    if (sscanf(openblas_get_config(), "OpenBLAS %d.%d.%d", major, minor, patch) != 3) {
        return 0;
    }
    return 1;
}