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difftime(3) -- calculate time difference
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The difftime() function returns the number of seconds elapsed between time time1 and time time0. The two times are specified in calendar time, which represents the time elapsed since 00:00:00 on Janua... |
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div(3) -- computes the quotient and remainder of integer division
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The div() function computes the value numer/denom and returns the quotient and remainder in a structure named div_t that contains two integer members named quot and rem. |
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dlopen(3) -- Programming interface to dynamic linking loader.
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dlopen loads a dynamic library from the file named by the null terminated string filename and returns an opaque "handle" for the dynamic library. If filename is not an absolute path (i.e., it does n... |
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dngettext(3) --
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dragdrop(3) -- facilities for handling drag&drop data transfers
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The drag&drop command provides access to a set of facilities for managing drag-and-drop data transfers. Any of the usual Tk widgets can be registered to participate in the drag-and-drop process. Widge... |
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drand48(3) -- generate uniformly distributed pseudo-random numbers
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These functions generate pseudo-random numbers using the linear congruential algorithm and 48-bit integer arithmetic. The drand48() and erand48() functions return non-negative double-precision floatin... |
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drem(3) -- floating-point remainder function
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The drem() function computes the remainder of dividing x by y. The return value is x - n * y, where n is the quotient of x / y, rounded to the nearest integer. If the quotient is 1/2, it is rounded to... |
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ecvt(3) -- convert a floating-point number to a string.
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The ecvt() function converts number to a null-terminated string of ndigits digits (where ndigits is reduced to an system-specific limit determined by the precision of a double), and returns a pointer ... |
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encrypt(3) -- Encrypt 64 bits messages
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These functions encrypt and decrypt 64 bit messages. The setkey() function sets the key used by encrypt(). The key parameter used here is an array of bytes, having each byte the numerical value 1 or 0... |
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eps(3) -- Encapsulated PostScript canvas item.
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The eps canvas item lets you place encapulated PostScript (EPS) on a canvas, controlling its size and placement. The EPS item is displayed either as a solid rectangle or a preview image. The preview i... |
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erf(3) -- error function and complementary error function
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The erf() function returns the error function of x; defined as erf(x) = 2/sqrt(pi)* integral from 0 to x of exp(-t*t) dt The erfc() function returns the complementary error function of x, that is 1.0 ... |
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errno(3) -- number of last error
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The integer errno is set by system calls (and some library functions) to indicate what went wrong. Its value is significant only when the call returned an error (usually -1), and a library function th... |
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exec(3) -- execute a file
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The exec family of functions replaces the current process image with a new process image. The functions described in this manual page are front-ends for the function execve(2). (See the manual page fo... |
