diff options
Diffstat (limited to 'frontends/verilog/preproc.cc')
| -rw-r--r-- | frontends/verilog/preproc.cc | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/frontends/verilog/preproc.cc b/frontends/verilog/preproc.cc index ae139741a..f83433219 100644 --- a/frontends/verilog/preproc.cc +++ b/frontends/verilog/preproc.cc @@ -193,7 +193,7 @@ static std::string next_token(bool pass_newline = false) return token; } -static void input_file(FILE *f, std::string filename) +static void input_file(std::istream &f, std::string filename) { char buffer[513]; int rc; @@ -202,14 +202,14 @@ static void input_file(FILE *f, std::string filename) auto it = input_buffer.begin(); input_buffer.insert(it, "`file_push " + filename + "\n"); - while ((rc = fread(buffer, 1, sizeof(buffer)-1, f)) > 0) { + while ((rc = f.readsome(buffer, sizeof(buffer)-1)) > 0) { buffer[rc] = 0; input_buffer.insert(it, buffer); } input_buffer.insert(it, "\n`file_pop\n"); } -std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::map<std::string, std::string> pre_defines_map, const std::list<std::string> include_dirs) +std::string frontend_verilog_preproc(std::istream &f, std::string filename, const std::map<std::string, std::string> pre_defines_map, const std::list<std::string> include_dirs) { std::set<std::string> defines_with_args; std::map<std::string, std::string> defines_map(pre_defines_map); @@ -288,27 +288,28 @@ std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::m else fn = fn.substr(0, pos) + fn.substr(pos+1); } - FILE *fp = fopen(fn.c_str(), "r"); - if (fp == NULL && fn.size() > 0 && fn[0] != '/' && filename.find('/') != std::string::npos) { + std::ifstream ff; + ff.clear(); + ff.open(fn.c_str()); + if (ff.fail() && fn.size() > 0 && fn[0] != '/' && filename.find('/') != std::string::npos) { // if the include file was not found, it is not given with an absolute path, and the // currently read file is given with a path, then try again relative to its directory - std::string fn2 = filename.substr(0, filename.rfind('/')+1) + fn; - fp = fopen(fn2.c_str(), "r"); + ff.clear(); + ff.open(filename.substr(0, filename.rfind('/')+1) + fn); } - if (fp == NULL && fn.size() > 0 && fn[0] != '/') { + if (ff.fail() && fn.size() > 0 && fn[0] != '/') { // if the include file was not found and it is not given with an absolute path, then // search it in the include path for (auto incdir : include_dirs) { - std::string fn2 = incdir + '/' + fn; - fp = fopen(fn2.c_str(), "r"); - if (fp != NULL) break; + ff.clear(); + ff.open(incdir + '/' + fn); + if (!ff.fail()) break; } } - if (fp != NULL) { - input_file(fp, fn); - fclose(fp); - } else + if (ff.fail()) output_code.push_back("`file_notfound " + fn); + else + input_file(ff, fn); continue; } |