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floor, floorf — x ?ʲ??κǤ??礭???????ͤؤ??ڼΤ?

?饤?֥???

Math Library (libm, -lm)

<math.h> double floor(double x) float floorf(float x)

floor() ?????? floorf() ?ؿ??ϡ? ??ư???????Ȥ???ɽ???????? x ?ʲ??κǤ??礭???????ͤ??֤??ޤ???

floor() ?ؿ??ϡ? ISO/IEC 9899:1990 (“ISO C90”) ??Ŭ?礷?Ƥ??ޤ???

March 10, 1994

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