1div(3) Library Functions Manual div(3)
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6 div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an inte‐
7 ger division
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10 Standard C library (libc, -lc)
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13 #include <stdlib.h>
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15 div_t div(int numerator, int denominator);
16 ldiv_t ldiv(long numerator, long denominator);
17 lldiv_t lldiv(long long numerator, long long denominator);
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19 #include <inttypes.h>
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21 imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator);
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23 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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25 lldiv():
26 _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
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29 The div() function computes the value numerator/denominator and returns
30 the quotient and remainder in a structure named div_t that contains two
31 integer members (in unspecified order) named quot and rem. The quo‐
32 tient is rounded toward zero. The result satisfies quot*denomina‐
33 tor+rem = numerator.
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35 The ldiv(), lldiv(), and imaxdiv() functions do the same, dividing num‐
36 bers of the indicated type and returning the result in a structure of
37 the indicated name, in all cases with fields quot and rem of the same
38 type as the function arguments.
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41 The div_t (etc.) structure.
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44 For an explanation of the terms used in this section, see at‐
45 tributes(7).
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47 ┌────────────────────────────────────────────┬───────────────┬─────────┐
48 │Interface │ Attribute │ Value │
49 ├────────────────────────────────────────────┼───────────────┼─────────┤
50 │div(), ldiv(), lldiv(), imaxdiv() │ Thread safety │ MT-Safe │
51 └────────────────────────────────────────────┴───────────────┴─────────┘
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54 C11, POSIX.1-2008.
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57 POSIX.1-2001, C89, C99, SVr4, 4.3BSD.
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59 lldiv() and imaxdiv() were added in C99.
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62 After
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64 div_t q = div(-5, 3);
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66 the values q.quot and q.rem are -1 and -2, respectively.
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69 abs(3), remainder(3)
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73Linux man-pages 6.05 2023-07-20 div(3)