String formatting, number-to-string conversion, and format builders
U std/fmt
| Constant | Value | Description |
|---|
FMT_BUF_SIZE | 256 | Default format buffer size |
ALIGN_LEFT | 0 | Left alignment |
ALIGN_CENTER | 1 | Center alignment |
ALIGN_RIGHT | 2 | Right alignment |
| Function | Signature | Description |
|---|
itoa | F itoa(value: i64) -> i64 | Integer to decimal string |
itoa_hex | F itoa_hex(value: i64) -> i64 | Integer to hex string |
itoa_bin | F itoa_bin(value: i64) -> i64 | Integer to binary string |
itoa_oct | F itoa_oct(value: i64) -> i64 | Integer to octal string |
format_int | F format_int(value: i64) -> i64 | Alias for itoa |
format_hex | F format_hex(value: i64) -> i64 | Alias for itoa_hex |
format_bin | F format_bin(value: i64) -> i64 | Alias for itoa_bin |
format_oct | F format_oct(value: i64) -> i64 | Alias for itoa_oct |
strlen | F strlen(s: i64) -> i64 | Get string length |
strcpy | F strcpy(dst: i64, src: i64) -> i64 | Copy string to buffer |
fmt_builder | F fmt_builder() -> FormatBuilder | Create new format builder |
Incremental string builder for formatted output.
| Method | Signature | Description |
|---|
new | F new() -> FormatBuilder | Create with default capacity |
with_capacity | F with_capacity(cap: i64) -> FormatBuilder | Create with capacity |
write_char | F write_char(&self, ch: i64) -> i64 | Write single character |
write_str | F write_str(&self, s: i64) -> i64 | Write string |
write_int | F write_int(&self, value: i64) -> i64 | Write integer |
write_hex | F write_hex(&self, value: i64) -> i64 | Write hex integer |
write_newline | F write_newline(&self) -> i64 | Write newline |
write_repeat | F write_repeat(&self, ch: i64, count: i64) -> i64 | Write char N times |
write_padded_int | F write_padded_int(&self, value: i64, width: i64, align: i64, pad: i64) -> i64 | Padded integer |
len | F len(&self) -> i64 | Get current length |
finish | F finish(&self) -> i64 | Finalize, return string pointer |
reset | F reset(&self) -> i64 | Reset for reuse |
cleanup | F cleanup(&self) -> i64 | Free buffer |
Helper for structured debug output.
| Method | Signature | Description |
|---|
new | F new(name: i64) -> DebugStruct | Create with struct name |
field | F field(&self, name: i64, value: i64) -> i64 | Add a field |
finish | F finish(&self) -> i64 | Finalize output |
U std/fmt
F main() -> i64 {
fb := FormatBuilder::new()
fb.write_str("Count: ")
fb.write_int(42)
fb.write_newline()
result := fb.finish()
puts_ptr(result)
fb.cleanup()
0
}