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setlocale(3) -- set the current locale.
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The setlocale() function is used to set or query the program's current locale. If locale is not NULL, the program's current locale is modified according to the arguments. The argument category deter... |
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siginterrupt(3) -- allow signals to interrupt system calls
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The siginterrupt() function changes the restart behaviour when a system call is interrupted by the signal sig. If the flag argument is false (0), then system calls will be restarted if interrupted by ... |
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sigsetops(3) -- POSIX signal set operations.
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The sigsetops(3) functions allow the manipulation of POSIX signal sets. sigemptyset initializes the signal set given by set to empty, with all signals excluded from the set. sigfillset initializes set... |
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sin(3) -- sine function
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The sin() function returns the sine of x, where x is given in radians. |
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sinh(3) -- hyperbolic sine function
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The sinh() function returns the hyperbolic sine of x, which is defined mathematically as (exp(x) - exp(-x)) / 2. |
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sleep(3) -- Sleep for the specified number of seconds
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sleep() makes the current process sleep until seconds seconds have elapsed or a signal arrives which is not ignored. |
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spline(3) -- Fit curves with spline interpolation
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The spline command computes a spline fitting a set of data points (x and y vectors) and produces a vector of the interpolated images (ycoordinates) at a given set of x-coordinates. |
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sqrt(3) -- square root function
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The sqrt() function returns the non-negative square root of x. It fails and sets errno to EDOM, if x is negative. |
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stdarg(3) -- variable argument lists
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A function may be called with a varying number of arguments of varying types. The include file stdarg.h declares a type va_list and defines three macros for stepping through a list of arguments whose ... |
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stdin(3) -- standard I/O streams
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Under normal circumstances every Unix program has three streams opened for it when it starts up, one for input, one for output, and one for printing diagnostic or error messages. These are typically a... |
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stdio(3) -- standard input/output library functions
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The standard I/O library provides a simple and efficient buffered stream I/O interface. Input and output is mapped into logical data streams and the physical I/O characteristics are concealed. The fun... |
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stpcpy(3) -- copy a string returning a pointer to its end
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The stpcpy() function copies the string pointed to by src (including the terminating `\0' character) to the array pointed to by dest. The strings may not overlap, and the destination string dest mus... |
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stpncpy(3) -- copy a fixed-size string, returning a pointer to its end
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The stpncpy function copies at most n characters from the string pointed to by src, including the terminating '\0' character, to the array pointed to by dest. Exactly n characters are written at de... |
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strcasecmp(3) -- compare two strings ignoring case
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The strcasecmp() function compares the two strings s1 and s2, ignoring the case of the characters. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be l... |
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strcat(3) -- concatenate two strings
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The strcat() function appends the src string to the dest string overwriting the `\0' character at the end of dest, and then adds a terminating `\0' character. The strings may not overlap, and the ... |
