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copysignf(3) -- Functions for IEEE arithmetic
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These functions are required or recommended by IEEE Std 754-1985. copysign() returns x with its sign changed to y's. finite() returns the value 1 just when -infinity < x < +infinity; otherwise a zero... |
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cos(3) -- cosine function
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The cos() and cosf() functions compute the cosine of x (measured in radians). A large magnitude argument may yield a result with little or no significance. For a discussion of error due to roundoff, s... |
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cosf(3) -- cosine function
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The cos() and cosf() functions compute the cosine of x (measured in radians). A large magnitude argument may yield a result with little or no significance. For a discussion of error due to roundoff, s... |
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cosh(3) -- hyperbolic cosine function
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The cosh() and coshf() functions compute the hyperbolic cosine of x. |
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coshf(3) -- hyperbolic cosine function
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The cosh() and coshf() functions compute the hyperbolic cosine of x. |
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creat(3) -- create a new file
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This interface is made obsolete by: open(2). creat() is the same as: open(path, O_CREAT | O_TRUNC | O_WRONLY, mode); |
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crypt(3) -- password encryption
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The crypt() function performs password encryption. The encryption scheme used by crypt() is dependent upon the contents of the NUL-terminated string setting. If setting begins with the ``$'' charact... |
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crypto(3) -- OpenSSL cryptographic library
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CRYPTO_set_ex_data(3) -- internal application specific data functions
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Several OpenSSL structures can have application specific data attached to them. These functions are used internally by OpenSSL to manipulate application specific data attached to a specific structure.... |
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ctermid(3) -- generate terminal pathname
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The ctermid() function generates a string, that, when used as a pathname, refers to the current controlling terminal of the calling process. If buf is the NULL pointer, a pointer to a static area is r... |
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ctime(3) -- convert date and time to ASCII
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ctime() converts a long integer, pointed to by clock, representing the time in seconds since 00:00:00 UTC, 1970-01-01, and returns a pointer to a 26-character string of the form Thu Nov 24 18:22:48 19... |
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ctime_r(3) -- convert date and time to ASCII
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ctime() converts a long integer, pointed to by clock, representing the time in seconds since 00:00:00 UTC, 1970-01-01, and returns a pointer to a 26-character string of the form Thu Nov 24 18:22:48 19... |
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ctype(3) -- character classification macros
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The above macros perform character tests and conversions on the integer c. See the specific manual pages for more information. |
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curses(3) -- screen functions with ``optimal'' cursor motion
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These routines give the user a method of updating screens with reasonable optimization. They keep an image of the current screen, and the user sets up an image of a new one. Then the refresh() tells t... |
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cuserid(3) -- get user name
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This interface is available from the compatibility library, libcompat and has been obsoleted by getlogin(2) The cuserid() function returns a character string representation of the user name associated... |
