Numerics
The C numerics library includes common mathematical functions and types, as well as support for random number generation.
Contents |
[edit] Common mathematical functions
The header <math.h> provides standard C library mathematical functions such as fabs, sqrt, and sin.
[edit] Floating-point environment
The header <fenv.h> defines flags and functions related to exceptional floating-point state, such as overflow and division by zero.
[edit] Pseudo-random number generation
The header <stdlib.h> also includes C-style random number generation via srand and rand.
[edit] Complex number arithmetic
The header <complex.h> provides types and functions to work with complex numbers.
[edit] Type-generic math
The header <tgmath.h> provides some macros for a function which names XXX:
- real function:
- float variant
XXXf - double variant
XXX - long double variant
XXXl
- float variant
- complex function:
- float variant
cXXXf - double variant
cXXX - long double variant
cXXXl
- float variant
[edit] Bit manipulation (since C23)
The header <stdbit.h> provides macros and functions to work with the byte ordering and byte and bit representation of C objects.
[edit] Checked integer arithmetic (since C23)
Provides some type-generic macros for checked integer arithmetic:
| Defined in header
<stdckdint.h> | |
| (C23) |
checked addition operation on two integers (type-generic function macro) |
| (C23) |
checked subtraction operation on two integers (type-generic function macro) |
| (C23) |
checked multiplication operation on two integers (type-generic function macro) |
[edit] See also
| C++ documentation for Numerics library
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