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add creal/cimag macros in complex.h (and use them in the functions defs)

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This commit is contained in:
Rich Felker 2012-03-22 15:54:55 -04:00
commit 13e400b355
8 changed files with 20 additions and 20 deletions
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11
include/complex.h
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@ -97,6 +97,17 @@ double creal(double complex);
float crealf(float complex);
long double creall(long double complex);
#define __CREALIMAG(x, t, i) \
((union { _Complex t __z; t __xy[2]; }){(_Complex t)(x)}.__xy[i])
#define creal(x) __CREALIMAG(x, double, 0)
#define crealf(x) __CREALIMAG(x, float, 0)
#define creall(x) __CREALIMAG(x, long double, 0)
#define cimag(x) __CREALIMAG(x, double, 1)
#define cimagf(x) __CREALIMAG(x, float, 1)
#define cimagl(x) __CREALIMAG(x, long double, 1)
#ifdef __cplusplus
}
#endif