From 3654ce578e6fff53950874adf7e0e4ae0a6eb956 Mon Sep 17 00:00:00 2001 From: nsfisis Date: Sun, 3 May 2026 17:29:12 +0900 Subject: refactor: organize directory structure --- src/cc1/fs.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/cc1/fs.c (limited to 'src/cc1/fs.c') diff --git a/src/cc1/fs.c b/src/cc1/fs.c new file mode 100644 index 0000000..c702fa4 --- /dev/null +++ b/src/cc1/fs.c @@ -0,0 +1,27 @@ +#include "fs.h" +#include +#include + +// 'ext' must include '.'. +char* replace_extension(const char* file_name, const char* ext) { + size_t len = strlen(file_name); + const char* last_slash = strrchr(file_name, '/'); + const char* last_dot = strrchr(file_name, '.'); + + size_t ext_len = strlen(ext); + size_t base_len; + // !last_slash: foo.c + // last_slash < last_dot: ./bar/foo.c + if (last_dot && (!last_slash || last_slash < last_dot)) { + base_len = last_dot - file_name; + } else { + base_len = len; + } + + char* result = calloc(base_len + ext_len + 1, sizeof(char)); + memcpy(result, file_name, base_len); + memcpy(result + base_len, ext, ext_len); + result[base_len + ext_len] = '\0'; + + return result; +} -- cgit v1.3.1