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authorNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
committerNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
commit9695ea005d4af93dcd60f74f10fd3c54499a182f (patch)
tree3e1a9abb9456ba07c0c97cd3d691f6a2df115791 /sys/base/string/fit.c
parentc65794b50b1bc729e7a4e940b76a973afa3030b9 (diff)
chore: split up base library into individual files for smaller binaries
Diffstat (limited to 'sys/base/string/fit.c')
-rw-r--r--sys/base/string/fit.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/base/string/fit.c b/sys/base/string/fit.c
new file mode 100644
index 0000000..56ab041
--- /dev/null
+++ b/sys/base/string/fit.c
@@ -0,0 +1,20 @@
+#include "internal.h"
+
+// fit reallocates the string such that the buffer is exactly sized for the
+// buffer. if the capacity equals the length, then the function is a noop. the
+// byte array is unchanged.
+void
+str·fit(string *s)
+{
+ Hdr* h;
+ vlong cap = str·cap(*s);
+ vlong len = str·len(*s);
+
+ if (cap == len) return;
+
+ h = (Hdr*)(s - sizeof(Hdr));
+ h = realloc(h, sizeof(*h) + len + 1);
+ h->cap = len;
+
+ *s = h->buf;
+}