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![Rounding Functions - The GNU C Library]()
www.gnu.orgThe functions listed here perform operations such as rounding and truncation of floating-point values. Some of these functions convert floating point numbers to ...瀏覽：555 -
![Google C++ Style Guide]()
google-styleguide.googlecode.cOveruse of inlining can actually make programs slower. Depending on a function's size, inlining it can cause the code size to increase or decrease. Inlining a very small accessor function will usually decrease code size while inlining a very large functio瀏覽：1000
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日期：2025-04-24
modf: Break into fractional and integral parts (function ) ... fmax: Maximum value (
function ) ... These are implemented as macros in C and as functions in C++: ......
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日期：2025-04-29
round. C99; C++11. double round (double x); float roundf (float x); long ... vs ceil vs trunc */ #include /* printf */ #include /* round, floor, ceil, ......
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日期：2025-04-24
2009年1月27日 - I need a simple floating point rounding function, thus: double ... Is it present in the standard C++ library under another name, or is it missing?...
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日期：2025-04-22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 /* round vs floor vs ceil vs trunc */ #include /* printf */ #include /* round, floor, ceil, trunc */ int main () { const char * format = "%.1f \t%.1f \t%.1f \t%.1f \t%.1f\n"; printf ("value&#...
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日期：2025-04-26
ceil() Prototype: double ceil(double x); Header File: math.h (C) or cmath (C++) Explanation: Use this to round a number up. It returns the smallest integer greater than or equal to x. ANSI: C and C++...
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日期：2025-04-29
I need a simple floating point rounding function, thus: double round(double); round(0.1) = 0 round(-0.1) = 0 round(-0.9) = -1 I can find ceil() and floor() in the math.h - but not round(). Is... ... It's available since C++11 in cmath (according to http:/...
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日期：2025-04-29
round(+2.3) = 2 round(+2.5) = 3 round(+2.7) = 3 round(-2.3) = -2 round(-2.5) = -3 round(-2.7) = -3 round(-0.0) = -0 round(-Inf) = -inf lround(+2.3) = 2 lround(+2.5) = 3 lround(+2.7) = 3 lround(-2.3) = -2 lround(-2.5) = -3 lround(-2.7) = -3 lround(-0.0) = ...
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日期：2025-04-26
Helios, Thanks for the info, but it doesn't cover how to round a double one decimal place. It talks about rouding a double to an int. By any chance do you know how to round a ......
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