May 23, 2024 · Otherwise, if arg has integer type or the type double, ceil is called. Otherwise, ceilf is called. If no errors occur, the smallest integer value not less than arg, that is ⌈arg⌉, is …

The ceil functions return a floating-point value that represents the smallest integer that is greater than or equal to x. There's no error return. ceil has an implementation that uses Streaming …

Oct 15, 2023 · The library provides overloads of std::ceil for all cv-unqualified floating-point types as the type of the parameter.(since C++23) (See math-floating-point and deduced-simd-t for …

Feb 1, 2013 · The ceil function returns a double value representing the smallest integer that is greater than or equal to x. There is no error return. ceil has an implementation that uses …

Jan 11, 2025 · In mathematics and computer science, the floor () and ceil () functions that are defined in <cmath> header file, map a real number to the greatest preceding or the least …

Jun 5, 2017 · The ceil functions return a floating-point value that represents the smallest integer that is greater than or equal to x. There is no error return. ceil has an implementation that uses …

Jun 7, 2012 · ceilf conforms to C99. If you are compiling against an older standard, that function will not be there. Try compiling with - std=c99. ceilf is part of the math library, so you need to …

ceilf函数 函数原型：float ceilf(float x); 该函数计算不小于参数x的最小整数值。 函数参数为一个float类型的浮点数。 函数返回浮点数形式表示的⌈x⌉值。

These functions return the smallest integral value that is not less than x. For example, ceil (0.5) is 1.0, and ceil (-0.5) is 0.0. These functions return the ceiling of x. If x is integral, +0, -0, NaN, or …

Otherwise, ceilf is called. If no errors occur, the smallest integer value not less than arg, that is ⌈arg⌉, is returned. Errors are reported as specified in math_errhandling. If the implementation …