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ydb
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contrib
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libs
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libf2c
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r_sign.c

r_sign.c 248 B
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  1. #include "f2c.h"
    2. 

  2. #ifdef __cplusplus
    3. 

  3. extern "C" {
    4. 

  4. #endif
    5. 

  5. 

  6. #ifdef KR_headers
    7. 

  7. double r_sign(a,b) real *a, *b;
    8. 

  8. #else
    9. 

  9. double r_sign(real *a, real *b)
    10. 

  10. #endif
    11. 

  11. {
    12. 

  12. double x;
    13. 

  13. x = (*a >= 0 ? *a : - *a);
    14. 

  14. return( *b >= 0 ? x : -x);
    15. 

  15. }
    16. 

  16. #ifdef __cplusplus
    17. 

  17. }
    18. 

  18. #endif
    19.