PROLOG<\/a> This manual page is part of the POSIX Programmer\u2019s Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.<\/p>\n remquo, remquof, remquol \u2014 remainder functions<\/p>\n #include double remquo(double x<\/i>, double y<\/i>, int *quo<\/i>); The functionality described on this reference page is aligned with the ISO\u00a0C standard. Any conflict between the requirements described here and the ISO\u00a0C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO\u00a0C standard.<\/p>\n The remquo<\/i>(), remquof<\/i>(), and remquol<\/i>() functions shall compute the same remainder as the remainder<\/i>(), remainderf<\/i>(), and remainderl<\/i>() functions, respectively. In the object pointed to by quo<\/i>, they store a value whose sign is the sign of x<\/i>\/y<\/i> and whose magnitude is congruent modulo 2 n<\/small><\/small><\/i> to the magnitude of the integral quotient of x<\/i>\/y<\/i>, where n<\/i> is an implementation-defined integer greater than or equal to 3. If y<\/i> is zero, the value stored in the object pointed to by quo<\/i> is unspecified.<\/p>\n An application wishing to check for error situations should set errno<\/i> to zero and call feclearexcept<\/i>(FE_ALL_EXCEPT) before calling these functions. On return, if errno<\/i> is non-zero or fetestexcept<\/i>(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an error has occurred.<\/p>\n These functions shall return x<\/i> REM y<\/i>.<\/p>\n On systems that do not support the IEC 60559 Floating-Point option, if y<\/i> is zero, it is implementation-defined whether a domain error occurs or zero is returned.<\/p>\n If x<\/i> or y<\/i> is NaN, a NaN shall be returned.<\/p>\n If x<\/i> is \u00b1Inf or y<\/i> is zero and the other argument is non-NaN, a domain error shall occur, and a NaN shall be returned.<\/p>\n These functions shall fail if: The x<\/i> argument is \u00b1Inf, or the y<\/i> argument is \u00b10 and the other argument is non-NaN.<\/p>\n If the integer expression (math_errhandling<\/i> & MATH_ERRNO) is non-zero, then errno<\/i> shall be set to [EDOM]<\/b>. If the integer expression (math_errhandling<\/i> & MATH_ERREXCEPT) is non-zero, then the invalid floating-point exception shall be raised.<\/p>\n These functions may fail if: The y<\/i> argument is zero.<\/p>\n If the integer expression (math_errhandling<\/i> & MATH_ERRNO) is non-zero, then errno<\/i> shall be set to [EDOM]<\/b>. If the integer expression (math_errhandling<\/i> & MATH_ERREXCEPT) is non-zero, then the invalid floating-point exception shall be raised.<\/p>\n The following sections are informative.<\/i><\/p>\n None.<\/p>\n On error, the expressions (math_errhandling<\/i> & MATH_ERRNO) and (math_errhandling<\/i> & MATH_ERREXCEPT) are independent of each other, but at least one of them must be non-zero.<\/p>\n These functions are intended for implementing argument reductions which can exploit a few low-order bits of the quotient. Note that x<\/i> may be so large in magnitude relative to y<\/i> that an exact representation of the quotient is not practical.<\/p>\n None.<\/p>\n feclearexcept<\/i>(), fetestexcept<\/i>(), remainder<\/i>()<\/p>\n
NAME<\/a>
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DESCRIPTION<\/a>
RETURN VALUE<\/a>
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COPYRIGHT<\/a> <\/p>\n
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NAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
float remquof(float x<\/i>, float y<\/i>, int *quo<\/i>);
long double remquol(long double x<\/i>, long double y<\/i>, int *quo<\/i>);<\/p>\nDESCRIPTION <\/a> <\/h2>\n
RETURN VALUE <\/a> <\/h2>\n
ERRORS <\/a> <\/h2>\n
Domain\u00a0Error<\/p>\n
Domain\u00a0Error<\/p>\nEXAMPLES <\/a> <\/h2>\n
APPLICATION USAGE <\/a> <\/h2>\n
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FUTURE DIRECTIONS <\/a> <\/h2>\n
SEE ALSO <\/a> <\/h2>\n