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Here are the descriptions of the functions for performing formatted input. Prototypes for these functions are in the header file stdio.h.
The scanf
function reads formatted input from the stream
stdin
under the control of the template string template.
The optional arguments are pointers to the places which receive the
resulting values.
The return value is normally the number of successful assignments. If
an end-of-file condition is detected before any matches are performed,
including matches against whitespace and literal characters in the
template, then EOF
is returned.
The wscanf
function reads formatted input from the stream
stdin
under the control of the template string template.
The optional arguments are pointers to the places which receive the
resulting values.
The return value is normally the number of successful assignments. If
an end-of-file condition is detected before any matches are performed,
including matches against whitespace and literal characters in the
template, then WEOF
is returned.
This function is just like scanf
, except that the input is read
from the stream stream instead of stdin
.
This function is just like wscanf
, except that the input is read
from the stream stream instead of stdin
.
This is like scanf
, except that the characters are taken from the
null-terminated string s instead of from a stream. Reaching the
end of the string is treated as an end-of-file condition.
The behavior of this function is undefined if copying takes place between objects that overlap—for example, if s is also given as an argument to receive a string read under control of the ‘%s’, ‘%S’, or ‘%[’ conversion.
This is like wscanf
, except that the characters are taken from the
null-terminated string ws instead of from a stream. Reaching the
end of the string is treated as an end-of-file condition.
The behavior of this function is undefined if copying takes place between objects that overlap—for example, if ws is also given as an argument to receive a string read under control of the ‘%s’, ‘%S’, or ‘%[’ conversion.
Next: Variable Arguments Input, Previous: Other Input Conversions, Up: Formatted Input [Contents][Index]