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popen(3) -- process I/O
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The popen() function ``opens'' a process by creating an IPC connection, forking, and invoking the shell. Historically, popen was implemented with a unidirectional pipe; hence many implementations of... |
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pow(3) -- exponential, logarithm, power functions
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The exp() function computes the exponential value of the given argument x. The expm1() function computes the value exp(x)-1 accurately even for tiny argument x. The log() function computes the value o... |
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powf(3) -- exponential, logarithm, power functions
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The exp() function computes the exponential value of the given argument x. The expm1() function computes the value exp(x)-1 accurately even for tiny argument x. The log() function computes the value o... |
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printf(3) -- formatted output conversion
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The printf() family of functions produces output according to a format as described below. printf() and vprintf() write output to stdout, the standard output stream; fprintf() and vfprintf() write out... |
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psignal(3) -- system signal messages
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The psignal() function locates the descriptive message string for the given signal number sig and writes it to the standard error. If the argument s is non-NULL it is written to the standard error fil... |
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putc(3) -- output a character or word to a stream
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The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. putc() acts essentially identically to fputc(), but is a macro that expands... |
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putchar(3) -- output a character or word to a stream
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The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. putc() acts essentially identically to fputc(), but is a macro that expands... |
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putchar_unlocked(3) -- output a character or word to a stream
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The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. putc() acts essentially identically to fputc(), but is a macro that expands... |
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putc_unlocked(3) -- output a character or word to a stream
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The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. putc() acts essentially identically to fputc(), but is a macro that expands... |
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putenv(3) -- environment variable functions
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These functions set, unset and fetch environment variables from the host environment list. For compatibility with differing environment conventions, the given arguments name and value may be appended ... |
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puts(3) -- output a line to a stream
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The function fputs() writes the string pointed to by str to the stream pointed to by stream. The function puts() writes the string str, and a terminating newline character, to the stream stdout. |
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putw(3) -- output a character or word to a stream
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The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. putc() acts essentially identically to fputc(), but is a macro that expands... |
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putwc(3) -- output a wide-character to a stream
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The fputwc() function writes the wide-character wc to the output stream pointed to by stream. putwc() acts essentially identically to fputwc(), but is a macro that expands in-line. It may evaluate str... |
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putwchar(3) -- output a wide-character to a stream
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The fputwc() function writes the wide-character wc to the output stream pointed to by stream. putwc() acts essentially identically to fputwc(), but is a macro that expands in-line. It may evaluate str... |
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pwcache(3) -- cache password and group entries
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The user_from_uid() function returns the user name associated with the argument uid. The user name is cached so that multiple calls with the same uid do not require additional calls to getpwuid(3). If... |
