#include <ctype.h>
Include dependency graph for isgraph.c:
Functions | |
| int | isgraph (int c) |
| Checks if the given character has a graphical representation. More... | |
Function Documentation
◆ isgraph()
| int isgraph | ( | int | ch | ) |
Checks if the given character has a graphical representation.
Checks if the given character has a graphical representation using the default locale. The following characters are graphical:
- number (0123456789)
- uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ)
- letter (abcdefghijklmnopqrstuvwxyz)
- punctuation character (!"#$%&'()*+,-./:;<=>?@[]^_`{|}~)
The behavior is undefined if the value of ch is not representable as unsigned char and is not equal to EOF.
- Parameters
-
ch The character to classify
- Returns
- Non-zero value if the character has a graphical representation character, zero otherwise.
Referenced by bad_input(), good_input(), and ispunct().
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