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Add islower and isupper

This commit is contained in:
g1n 2021-12-29 17:00:26 +02:00
parent fd9016041b
commit d4fe6afbeb
Signed by: g1n
GPG Key ID: 8D352193D65D4E2C
2 changed files with 11 additions and 1 deletions
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10
src/ctype.c
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@ -5,7 +5,7 @@ int isdigit(int c) {
}
int isxdigit(int c) {
return isdigit(c) || ((unsigned)c|32)-'a' < 6;
return isdigit(c) || ((unsigned)c|32)-'a' < 6;
}
int isblank(int c) {
@ -16,3 +16,11 @@ int isspace(int c) {
return (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v');
}
int islower(int c) {
return (unsigned)c-'a' < 26;
}
int isupper(int c) {
return (unsigned)c-'A' < 26;
}

2
src/include/ctype.h
View File

@ -5,5 +5,7 @@ int isdigit(int c);
int isxdigit(int c);
int isblank(int c);
int isspace(int c);
int islower(int c);
int isupper(int c);
#endif