diff options
Diffstat (limited to 'toc.c')
| -rw-r--r-- | toc.c | 32 |
1 files changed, 32 insertions, 0 deletions
@@ -84,6 +84,38 @@ static size_t compiler_sizeof(Type *t); #include "copy.c" #include "binfile.c" +/* returns NULL on error */ +static char *read_entire_file(Allocator *a, ErrCtx *ectx, const char *filename) { + FILE *in = fopen(filename, "r"); + + if (!in) { + Location where = {0}; + File file = {0}; + file.ctx = ectx; + file.filename = filename; + where.file = &file; + err_print(where, "Could not open file: %s.", filename); + return NULL; + } + char *contents = allocr_malloc(a, 4096); + contents[0] = 0; /* put 0 byte at the start of the file. see err.c:err_print_location_text to find out why */ + contents[1] = 0; /* if fgets fails the first time */ + long contents_cap = 4095; + long contents_len = 1; + while (fgets(contents + contents_len, (int)(contents_cap - contents_len), in)) { + contents_len += (long)strlen(contents + contents_len); + + if (contents_len >= (long)contents_cap - 1024) { + size_t prev = (size_t)contents_cap + 1; + contents_cap *= 2; + contents = allocr_realloc(a, contents, prev, (size_t)contents_cap + 1); + } + } + ++contents; + return contents; +} + + #include "identifiers.c" #include "tokenizer.c" |