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Annotation of coherent/a/usr/man/ALL/sscanf, revision 1.1

1.1     ! root        1: 
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        !             3: sscanf()                      STDIO                      sscanf()
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        !             8: Format a string
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        !            10: #include <stdio.h>
        !            11: iinntt ssssccaannff(_s_t_r_i_n_g, _f_o_r_m_a_t [, _a_r_g ] ...)
        !            12: cchhaarr *_s_t_r_i_n_g; cchhaarr *_f_o_r_m_a_t;
        !            13: 
        !            14: sscanf reads  the argument string,  and uses format  to specify a
        !            15: format for each  arg, each of which must be  a pointer.  For more
        !            16: information on sscanf's conversion codes, see scanf.
        !            17: 
        !            18: ***** Example *****
        !            19: 
        !            20: This example  uses sspprriinnttff to create a string,  and then reads it
        !            21: with  ssssccaannff.  It  also illustrates  a  common problem  with this
        !            22: routine.
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        !            24: 
        !            25: #include <stdio.h>
        !            26: 
        !            27: main()
        !            28: {
        !            29:         char string[80];
        !            30:         char s1[10], s2[10];
        !            31: 
        !            32: 
        !            33: 
        !            34:         sprintf(string, "123456789012345678901234567890");
        !            35:         sscanf(string, "%9c", s1);
        !            36:         sscanf(string, "%10c", s2);
        !            37: 
        !            38: 
        !            39: 
        !            40:         printf("\n%s is the string\n", string);
        !            41:         printf("%s: first 9 characters in string\n", s1);
        !            42:         printf("%s: first 19 characters in string\n", s2);
        !            43: }
        !            44: 
        !            45: 
        !            46: ***** See Also *****
        !            47: 
        !            48: fscanf(), scanf(), STDIO
        !            49: 
        !            50: ***** Diagnostics *****
        !            51: 
        !            52: sscanf returns  the number of arguments  filled.  It returns zero
        !            53: if no arguments can be filled or if an error occurs.
        !            54: 
        !            55: ***** Notes *****
        !            56: 
        !            57: Because C does not  perform type checking, an argument must match
        !            58: its format  specification.  sscanf is  best used only  to process
        !            59: data that you are certain are in the correct data format, such as
        !            60: data that were written with sprintf.
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        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
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        !            69: sscanf()                      STDIO                      sscanf()
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        !            72: 
        !            73: sscanf  is difficult  to use correctly,  and incorrect  usage can
        !            74: create serious  bugs in programs.  It  is recommended that strtok
        !            75: be used instead.
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        !           130: COHERENT Lexicon                                           Page 2
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