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Implement strings the way Go itself does

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This makes string slicing cheap.
This commit is contained in:
Ayke van Laethem
2018-04-14 19:24:21 +02:00
parent 7cc2301621
commit 60a01a43a3
3 changed files with 10 additions and 15 deletions
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runtime/runtime.c
+2 -2
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@@ -6,8 +6,8 @@
#define print(buf, len) write(STDOUT_FILENO, buf, len)
void __go_printstring(string_t *str) {
write(STDOUT_FILENO, str->buf, str->len);
void __go_printstring(string_t str) {
write(STDOUT_FILENO, str.buf, str.len);
}
void __go_printint(intgo_t n) {
runtime/runtime.h
+2 -2
View File
@@ -4,8 +4,8 @@
#include <stdint.h>
typedef struct {
uint32_t len; // TODO: size_t (or, let max string size depend on target/flag)
uint8_t buf[]; // variable size
uint32_t len; // TODO: size_t (or, let max string size depend on target/flag)
uint8_t *buf; // points to string buffer itself
} string_t;
typedef int32_t intgo_t; // may be 64-bit