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Diffstat (limited to 'man3/INTSTRLEN.3libsimple')
| -rw-r--r-- | man3/INTSTRLEN.3libsimple | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/man3/INTSTRLEN.3libsimple b/man3/INTSTRLEN.3libsimple new file mode 100644 index 0000000..63c1485 --- /dev/null +++ b/man3/INTSTRLEN.3libsimple @@ -0,0 +1,46 @@ +.TH INTSTRLEN 3 2018-11-05 libsimple +.SH NAME +INTSTRLEN \- get the maximum length of an integer string +.SH SYNOPSIS +.nf +#include <libsimple.h> + +#ifndef INTSTRLEN +# define INTSTRLEN(type) /* implementation omitted */ +#endif +.fi +.SH DESCRIPTION +The +.BR INTSTRLEN () +macro assumes +.I type +is an integer type, and expends to a value representing +a number of bytes sufficiently large to store any value +of the specified integer type as a string without leading +zeroes or plus sign, and +.IR "without a terminating NUL byte" , +as a constant expression in the type +.BR size_t ; +however it is not suitable for +.BR #if . +.PP +The resulting value can depend in either the type is +signed or unsigned, and can be slightly larger than +necessary, it can however not be smaller. (For integers +up to 64 bits, the result is only off by one for signed +64-bit integer types.) +.SH EXAMPLES +None. +.SH APPLICATION USAGE +None. +.SH RATIONALE +None. +.SH FUTURE DIRECTIONS +None. +.SH NOTES +None. +.SH BUGS +None. +.SH SEE ALSO +.BR TYPE_MIN (3libsimple) +.BR TYPE_MAX (3libsimple) |