From 6d77236f3845cd8785e7bdd4da3c5ef966be6043 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Wed, 7 Aug 2019 12:20:08 -0700 Subject: [PATCH] substr() -> compare() --- backends/firrtl/firrtl.cc | 2 +- backends/intersynth/intersynth.cc | 2 +- backends/smt2/smt2.cc | 2 +- backends/smv/smv.cc | 2 +- backends/verilog/verilog_backend.cc | 4 +-- frontends/ast/ast.cc | 4 +-- frontends/ast/genrtlil.cc | 2 +- frontends/ast/simplify.cc | 6 ++-- frontends/verific/verific.cc | 4 +-- frontends/verilog/verilog_parser.y | 8 ++--- kernel/register.cc | 14 ++++---- kernel/yosys.cc | 50 ++++++++++++++--------------- passes/cmds/cover.cc | 2 +- passes/cmds/select.cc | 50 ++++++++++++++--------------- passes/cmds/setattr.cc | 2 +- passes/cmds/show.cc | 6 ++-- passes/equiv/equiv_opt.cc | 2 +- passes/equiv/equiv_struct.cc | 4 +-- passes/opt/opt_clean.cc | 6 ++-- passes/opt/opt_merge.cc | 2 +- passes/opt/opt_rmdff.cc | 4 +-- passes/sat/expose.cc | 2 +- passes/sat/miter.cc | 4 +-- passes/sat/sat.cc | 6 ++-- passes/techmap/abc.cc | 10 +++--- passes/techmap/dff2dffe.cc | 6 ++-- passes/techmap/extract.cc | 10 +++--- passes/techmap/muxcover.cc | 10 +++--- passes/techmap/techmap.cc | 20 ++++++------ passes/tests/test_cell.cc | 2 +- techlibs/ice40/ice40_braminit.cc | 6 ++-- 31 files changed, 127 insertions(+), 127 deletions(-) diff --git a/backends/firrtl/firrtl.cc b/backends/firrtl/firrtl.cc index 5be6d60fd..73b1e7d53 100644 --- a/backends/firrtl/firrtl.cc +++ b/backends/firrtl/firrtl.cc @@ -363,7 +363,7 @@ struct FirrtlWorker } // Check for subfield assignment. std::string bitsString = "bits("; - if (sinkExpr.substr(0, bitsString.length()) == bitsString ) { + if (sinkExpr.compare(0, bitsString.length(), bitsString) == 0) { if (sinkSig == nullptr) log_error("Unknown subfield %s.%s\n", cell_type.c_str(), sinkExpr.c_str()); // Don't generate the assignment here. diff --git a/backends/intersynth/intersynth.cc b/backends/intersynth/intersynth.cc index 98746809c..809a0fa09 100644 --- a/backends/intersynth/intersynth.cc +++ b/backends/intersynth/intersynth.cc @@ -108,7 +108,7 @@ struct IntersynthBackend : public Backend { if (f.fail()) log_error("Can't open lib file `%s'.\n", filename.c_str()); RTLIL::Design *lib = new RTLIL::Design; - Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog"); + Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog")); libs.push_back(lib); } diff --git a/backends/smt2/smt2.cc b/backends/smt2/smt2.cc index db849882e..081dcda99 100644 --- a/backends/smt2/smt2.cc +++ b/backends/smt2/smt2.cc @@ -1476,7 +1476,7 @@ struct Smt2Backend : public Backend { int indent = 0; while (indent < GetSize(line) && (line[indent] == ' ' || line[indent] == '\t')) indent++; - if (line.substr(indent, 2) == "%%") + if (line.compare(indent, 2, "%%") == 0) break; *f << line << std::endl; } diff --git a/backends/smv/smv.cc b/backends/smv/smv.cc index e9586fae0..f755307bf 100644 --- a/backends/smv/smv.cc +++ b/backends/smv/smv.cc @@ -61,7 +61,7 @@ struct SmvWorker { string name = stringf("_%s", id.c_str()); - if (name.substr(0, 2) == "_\\") + if (name.compare(0, 2, "_\\") == 0) name = "_" + name.substr(2); for (auto &c : name) { diff --git a/backends/verilog/verilog_backend.cc b/backends/verilog/verilog_backend.cc index 6065a71ff..7b1db4776 100644 --- a/backends/verilog/verilog_backend.cc +++ b/backends/verilog/verilog_backend.cc @@ -604,7 +604,7 @@ bool dump_cell_expr(std::ostream &f, std::string indent, RTLIL::Cell *cell) return true; } - if (cell->type.substr(0, 6) == "$_DFF_") + if (cell->type.begins_with("$_DFF_")) { std::string reg_name = cellname(cell); bool out_is_reg_wire = is_reg_wire(cell->getPort("\\Q"), reg_name); @@ -645,7 +645,7 @@ bool dump_cell_expr(std::ostream &f, std::string indent, RTLIL::Cell *cell) return true; } - if (cell->type.substr(0, 8) == "$_DFFSR_") + if (cell->type.begins_with("$_DFFSR_")) { char pol_c = cell->type[8], pol_s = cell->type[9], pol_r = cell->type[10]; diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index e707f435a..07ef0a86e 100644 --- a/frontends/ast/ast.cc +++ b/frontends/ast/ast.cc @@ -1164,7 +1164,7 @@ void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump } } - if (flag_icells && (*it)->str.substr(0, 2) == "\\$") + if (flag_icells && (*it)->str.compare(0, 2, "\\$") == 0) (*it)->str = (*it)->str.substr(1); if (defer) @@ -1463,7 +1463,7 @@ std::string AstModule::derive_common(RTLIL::Design *design, dicttype == AST_CELLTYPE) { cell->type = child->str; - if (flag_icells && cell->type.substr(0, 2) == "\\$") + if (flag_icells && cell->type.begins_with("\\$")) cell->type = cell->type.substr(1); continue; } diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index 467b2e5c0..54b9efaad 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -2793,13 +2793,13 @@ AstNode *AstNode::readmem(bool is_readmemh, std::string mem_filename, AstNode *m std::getline(f, line); for (int i = 0; i < GetSize(line); i++) { - if (in_comment && line.substr(i, 2) == "*/") { + if (in_comment && line.compare(i, 2, "*/") == 0) { line[i] = ' '; line[i+1] = ' '; in_comment = false; continue; } - if (!in_comment && line.substr(i, 2) == "/*") + if (!in_comment && line.compare(i, 2, "/*") == 0) in_comment = true; if (in_comment) line[i] = ' '; @@ -2808,7 +2808,7 @@ AstNode *AstNode::readmem(bool is_readmemh, std::string mem_filename, AstNode *m while (1) { token = next_token(line, " \t\r\n"); - if (token.empty() || token.substr(0, 2) == "//") + if (token.empty() || token.compare(0, 2, "//") == 0) break; if (token[0] == '@') { diff --git a/frontends/verific/verific.cc b/frontends/verific/verific.cc index 06d58a44a..594da45eb 100644 --- a/frontends/verific/verific.cc +++ b/frontends/verific/verific.cc @@ -2140,7 +2140,7 @@ struct VerificPass : public Pass { veri_file::DefineMacro("VERIFIC"); veri_file::DefineMacro(args[argidx] == "-formal" ? "FORMAL" : "SYNTHESIS"); - for (argidx++; argidx < GetSize(args) && GetSize(args[argidx]) >= 2 && args[argidx].substr(0, 2) == "-D"; argidx++) { + for (argidx++; argidx < GetSize(args) && GetSize(args[argidx]) >= 2 && args[argidx].compare(0, 2, "-D") == 0; argidx++) { std::string name = args[argidx].substr(2); if (args[argidx] == "-D") { if (++argidx >= GetSize(args)) @@ -2283,7 +2283,7 @@ struct VerificPass : public Pass { break; } - if (argidx > GetSize(args) && args[argidx].substr(0, 1) == "-") + if (argidx > GetSize(args) && args[argidx].compare(0, 1, "-") == 0) cmd_error(args, argidx, "unknown option"); if (mode_all) diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index 0fec445fa..4afd72b73 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -274,7 +274,7 @@ hierarchical_id: $$ = $1; } | hierarchical_id TOK_PACKAGESEP TOK_ID { - if ($3->substr(0, 1) == "\\") + if ($3->compare(0, 1, "\\") == 0) *$1 += "::" + $3->substr(1); else *$1 += "::" + *$3; @@ -282,7 +282,7 @@ hierarchical_id: $$ = $1; } | hierarchical_id '.' TOK_ID { - if ($3->substr(0, 1) == "\\") + if ($3->compare(0, 1, "\\") == 0) *$1 += "." + $3->substr(1); else *$1 += "." + *$3; @@ -2184,7 +2184,7 @@ basic_expr: $$ = $1; } | '(' expr ')' TOK_CONSTVAL { - if ($4->substr(0, 1) != "'") + if ($4->compare(0, 1, "'") != 0) frontend_verilog_yyerror("Cast operation must be applied on sized constants e.g. () , while %s is not a sized constant.", $4->c_str()); AstNode *bits = $2; AstNode *val = const2ast(*$4, case_type_stack.size() == 0 ? 0 : case_type_stack.back(), !lib_mode); @@ -2194,7 +2194,7 @@ basic_expr: delete $4; } | hierarchical_id TOK_CONSTVAL { - if ($2->substr(0, 1) != "'") + if ($2->compare(0, 1, "'") != 0) frontend_verilog_yyerror("Cast operation must be applied on sized constants, e.g. \'d0, while %s is not a sized constant.", $2->c_str()); AstNode *bits = new AstNode(AST_IDENTIFIER); bits->str = *$1; diff --git a/kernel/register.cc b/kernel/register.cc index e4237cac4..1fd1bad1d 100644 --- a/kernel/register.cc +++ b/kernel/register.cc @@ -200,7 +200,7 @@ void Pass::extra_args(std::vector args, size_t argidx, RTLIL::Desig { std::string arg = args[argidx]; - if (arg.substr(0, 1) == "-") + if (arg.compare(0, 1, "-") == 0) cmd_error(args, argidx, "Unknown option or option in arguments."); if (!select) @@ -449,7 +449,7 @@ void Frontend::extra_args(std::istream *&f, std::string &filename, std::vector 3 && filename.substr(filename.size()-3) == ".gz") { + if (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".gz") == 0) { #ifdef YOSYS_ENABLE_ZLIB gzip_ostream *gf = new gzip_ostream; if (!gf->open(filename)) { diff --git a/kernel/yosys.cc b/kernel/yosys.cc index a4cc53f1a..5a53f90fd 100644 --- a/kernel/yosys.cc +++ b/kernel/yosys.cc @@ -647,12 +647,12 @@ std::vector glob_filename(const std::string &filename_pattern) void rewrite_filename(std::string &filename) { - if (filename.substr(0, 1) == "\"" && filename.substr(GetSize(filename)-1) == "\"") + if (filename.compare(0, 1, "\"") == 0 && filename.compare(GetSize(filename)-1, std::string::npos, "\"") == 0) filename = filename.substr(1, GetSize(filename)-2); - if (filename.substr(0, 2) == "+/") + if (filename.compare(0, 2, "+/") == 0) filename = proc_share_dirname() + filename.substr(2); #ifndef _WIN32 - if (filename.substr(0, 2) == "~/") + if (filename.compare(0, 2, "~/") == 0) filename = filename.replace(0, 1, getenv("HOME")); #endif } @@ -895,25 +895,25 @@ void run_frontend(std::string filename, std::string command, std::string *backen if (command == "auto") { std::string filename_trim = filename; - if (filename_trim.size() > 3 && filename_trim.substr(filename_trim.size()-3) == ".gz") + if (filename_trim.size() > 3 && filename_trim.compare(filename_trim.size()-3, std::string::npos, ".gz") == 0) filename_trim.erase(filename_trim.size()-3); - if (filename_trim.size() > 2 && filename_trim.substr(filename_trim.size()-2) == ".v") + if (filename_trim.size() > 2 && filename_trim.compare(filename_trim.size()-2, std::string::npos, ".v") == 0) command = "verilog"; - else if (filename_trim.size() > 2 && filename_trim.substr(filename_trim.size()-3) == ".sv") + else if (filename_trim.size() > 2 && filename_trim.compare(filename_trim.size()-3, std::string::npos, ".sv") == 0) command = "verilog -sv"; - else if (filename_trim.size() > 3 && filename_trim.substr(filename_trim.size()-4) == ".vhd") + else if (filename_trim.size() > 3 && filename_trim.compare(filename_trim.size()-4, std::string::npos, ".vhd") == 0) command = "vhdl"; - else if (filename_trim.size() > 4 && filename_trim.substr(filename_trim.size()-5) == ".blif") + else if (filename_trim.size() > 4 && filename_trim.compare(filename_trim.size()-5, std::string::npos, ".blif") == 0) command = "blif"; - else if (filename_trim.size() > 5 && filename_trim.substr(filename_trim.size()-6) == ".eblif") + else if (filename_trim.size() > 5 && filename_trim.compare(filename_trim.size()-6, std::string::npos, ".eblif") == 0) command = "blif"; - else if (filename_trim.size() > 4 && filename_trim.substr(filename_trim.size()-5) == ".json") + else if (filename_trim.size() > 4 && filename_trim.compare(filename_trim.size()-5, std::string::npos, ".json") == 0) command = "json"; - else if (filename_trim.size() > 3 && filename_trim.substr(filename_trim.size()-3) == ".il") + else if (filename_trim.size() > 3 && filename_trim.compare(filename_trim.size()-3, std::string::npos, ".il") == 0) command = "ilang"; - else if (filename_trim.size() > 3 && filename_trim.substr(filename_trim.size()-3) == ".ys") + else if (filename_trim.size() > 3 && filename_trim.compare(filename_trim.size()-3, std::string::npos, ".ys") == 0) command = "script"; - else if (filename_trim.size() > 3 && filename_trim.substr(filename_trim.size()-4) == ".tcl") + else if (filename_trim.size() > 3 && filename_trim.compare(filename_trim.size()-4, std::string::npos, ".tcl") == 0) command = "tcl"; else if (filename == "-") command = "script"; @@ -1028,17 +1028,17 @@ void run_backend(std::string filename, std::string command, RTLIL::Design *desig design = yosys_design; if (command == "auto") { - if (filename.size() > 2 && filename.substr(filename.size()-2) == ".v") + if (filename.size() > 2 && filename.compare(filename.size()-2, std::string::npos, ".v") == 0) command = "verilog"; - else if (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") + else if (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0) command = "ilang"; - else if (filename.size() > 4 && filename.substr(filename.size()-4) == ".aig") + else if (filename.size() > 4 && filename.compare(filename.size()-4, std::string::npos, ".aig") == 0) command = "aiger"; - else if (filename.size() > 5 && filename.substr(filename.size()-5) == ".blif") + else if (filename.size() > 5 && filename.compare(filename.size()-5, std::string::npos, ".blif") == 0) command = "blif"; - else if (filename.size() > 5 && filename.substr(filename.size()-5) == ".edif") + else if (filename.size() > 5 && filename.compare(filename.size()-5, std::string::npos, ".edif") == 0) command = "edif"; - else if (filename.size() > 5 && filename.substr(filename.size()-5) == ".json") + else if (filename.size() > 5 && filename.compare(filename.size()-5, std::string::npos, ".json") == 0) command = "json"; else if (filename == "-") command = "ilang"; @@ -1072,7 +1072,7 @@ static char *readline_cmd_generator(const char *text, int state) } for (; it != pass_register.end(); it++) { - if (it->first.substr(0, len) == text) + if (it->first.compare(0, len, text) == 0) return strdup((it++)->first.c_str()); } return NULL; @@ -1094,7 +1094,7 @@ static char *readline_obj_generator(const char *text, int state) if (design->selected_active_module.empty()) { for (auto &it : design->modules_) - if (RTLIL::unescape_id(it.first).substr(0, len) == text) + if (RTLIL::unescape_id(it.first).compare(0, len, text) == 0) obj_names.push_back(strdup(RTLIL::id2cstr(it.first))); } else @@ -1103,19 +1103,19 @@ static char *readline_obj_generator(const char *text, int state) RTLIL::Module *module = design->modules_.at(design->selected_active_module); for (auto &it : module->wires_) - if (RTLIL::unescape_id(it.first).substr(0, len) == text) + if (RTLIL::unescape_id(it.first).compare(0, len, text) == 0) obj_names.push_back(strdup(RTLIL::id2cstr(it.first))); for (auto &it : module->memories) - if (RTLIL::unescape_id(it.first).substr(0, len) == text) + if (RTLIL::unescape_id(it.first).compare(0, len, text) == 0) obj_names.push_back(strdup(RTLIL::id2cstr(it.first))); for (auto &it : module->cells_) - if (RTLIL::unescape_id(it.first).substr(0, len) == text) + if (RTLIL::unescape_id(it.first).compare(0, len, text) == 0) obj_names.push_back(strdup(RTLIL::id2cstr(it.first))); for (auto &it : module->processes) - if (RTLIL::unescape_id(it.first).substr(0, len) == text) + if (RTLIL::unescape_id(it.first).compare(0, len, text) == 0) obj_names.push_back(strdup(RTLIL::id2cstr(it.first))); } diff --git a/passes/cmds/cover.cc b/passes/cmds/cover.cc index 1128116b4..628ac4c5e 100644 --- a/passes/cmds/cover.cc +++ b/passes/cmds/cover.cc @@ -121,7 +121,7 @@ struct CoverPass : public Pass { } break; } - while (argidx < args.size() && args[argidx].substr(0, 1) != "-") + while (argidx < args.size() && args[argidx].compare(0, 1, "-") != 0) patterns.push_back(args[argidx++]); extra_args(args, argidx, design); diff --git a/passes/cmds/select.cc b/passes/cmds/select.cc index b5e8ef1af..59d10a1b8 100644 --- a/passes/cmds/select.cc +++ b/passes/cmds/select.cc @@ -34,7 +34,7 @@ static bool match_ids(RTLIL::IdString id, std::string pattern) { if (id == pattern) return true; - if (id.size() > 0 && id[0] == '\\' && id.substr(1) == pattern) + if (id.size() > 0 && id[0] == '\\' && id.compare(1, std::string::npos, pattern.c_str()) == 0) return true; if (patmatch(pattern.c_str(), id.c_str())) return true; @@ -124,11 +124,11 @@ static bool match_attr(const dict &attributes, st size_t pos = match_expr.find_first_of(""); if (pos != std::string::npos) { - if (match_expr.substr(pos, 2) == "!=") + if (match_expr.compare(pos, 2, "!=") == 0) return match_attr(attributes, match_expr.substr(0, pos), match_expr.substr(pos+2), '!'); - if (match_expr.substr(pos, 2) == "<=") + if (match_expr.compare(pos, 2, "<=") == 0) return match_attr(attributes, match_expr.substr(0, pos), match_expr.substr(pos+2), '['); - if (match_expr.substr(pos, 2) == ">=") + if (match_expr.compare(pos, 2, ">=") == 0) return match_attr(attributes, match_expr.substr(0, pos), match_expr.substr(pos+2), ']'); return match_attr(attributes, match_expr.substr(0, pos), match_expr.substr(pos+1), match_expr[pos]); } @@ -711,32 +711,32 @@ static void select_stmt(RTLIL::Design *design, std::string arg) log_cmd_error("Must have at least one element on the stack for operator %%a.\n"); select_op_alias(design, work_stack[work_stack.size()-1]); } else - if (arg == "%x" || (arg.size() > 2 && arg.substr(0, 2) == "%x" && (arg[2] == ':' || arg[2] == '*' || arg[2] == '.' || ('0' <= arg[2] && arg[2] <= '9')))) { + if (arg == "%x" || (arg.size() > 2 && arg.compare(0, 2, "%x") == 0 && (arg[2] == ':' || arg[2] == '*' || arg[2] == '.' || ('0' <= arg[2] && arg[2] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%x.\n"); select_op_expand(design, arg, 'x', false); } else - if (arg == "%ci" || (arg.size() > 3 && arg.substr(0, 3) == "%ci" && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { + if (arg == "%ci" || (arg.size() > 3 && arg.compare(0, 3, "%ci") == 0 && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%ci.\n"); select_op_expand(design, arg, 'i', false); } else - if (arg == "%co" || (arg.size() > 3 && arg.substr(0, 3) == "%co" && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { + if (arg == "%co" || (arg.size() > 3 && arg.compare(0, 3, "%co") == 0 && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%co.\n"); select_op_expand(design, arg, 'o', false); } else - if (arg == "%xe" || (arg.size() > 3 && arg.substr(0, 3) == "%xe" && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { + if (arg == "%xe" || (arg.size() > 3 && arg.compare(0, 3, "%xe") == 0 && (arg[3] == ':' || arg[3] == '*' || arg[3] == '.' || ('0' <= arg[3] && arg[3] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%xe.\n"); select_op_expand(design, arg, 'x', true); } else - if (arg == "%cie" || (arg.size() > 4 && arg.substr(0, 4) == "%cie" && (arg[4] == ':' || arg[4] == '*' || arg[4] == '.' || ('0' <= arg[4] && arg[4] <= '9')))) { + if (arg == "%cie" || (arg.size() > 4 && arg.compare(0, 4, "%cie") == 0 && (arg[4] == ':' || arg[4] == '*' || arg[4] == '.' || ('0' <= arg[4] && arg[4] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%cie.\n"); select_op_expand(design, arg, 'i', true); } else - if (arg == "%coe" || (arg.size() > 4 && arg.substr(0, 4) == "%coe" && (arg[4] == ':' || arg[4] == '*' || arg[4] == '.' || ('0' <= arg[4] && arg[4] <= '9')))) { + if (arg == "%coe" || (arg.size() > 4 && arg.compare(0, 4, "%coe") == 0 && (arg[4] == ':' || arg[4] == '*' || arg[4] == '.' || ('0' <= arg[4] && arg[4] <= '9')))) { if (work_stack.size() < 1) log_cmd_error("Must have at least one element on the stack for operator %%coe.\n"); select_op_expand(design, arg, 'o', true); @@ -766,7 +766,7 @@ static void select_stmt(RTLIL::Design *design, std::string arg) } else { size_t pos = arg.find('/'); if (pos == std::string::npos) { - if (arg.find(':') == std::string::npos || arg.substr(0, 1) == "A") + if (arg.find(':') == std::string::npos || arg.compare(0, 1, "A") == 0) arg_mod = arg; else arg_mod = "*", arg_memb = arg; @@ -787,7 +787,7 @@ static void select_stmt(RTLIL::Design *design, std::string arg) sel.full_selection = false; for (auto &mod_it : design->modules_) { - if (arg_mod.substr(0, 2) == "A:") { + if (arg_mod.compare(0, 2, "A:") == 0) { if (!match_attr(mod_it.second->attributes, arg_mod.substr(2))) continue; } else @@ -800,27 +800,27 @@ static void select_stmt(RTLIL::Design *design, std::string arg) } RTLIL::Module *mod = mod_it.second; - if (arg_memb.substr(0, 2) == "w:") { + if (arg_memb.compare(0, 2, "w:") == 0) { for (auto &it : mod->wires_) if (match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "i:") { + if (arg_memb.compare(0, 2, "i:") == 0) { for (auto &it : mod->wires_) if (it.second->port_input && match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "o:") { + if (arg_memb.compare(0, 2, "o:") == 0) { for (auto &it : mod->wires_) if (it.second->port_output && match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "x:") { + if (arg_memb.compare(0, 2, "x:") == 0) { for (auto &it : mod->wires_) if ((it.second->port_input || it.second->port_output) && match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "s:") { + if (arg_memb.compare(0, 2, "s:") == 0) { size_t delim = arg_memb.substr(2).find(':'); if (delim == std::string::npos) { int width = atoi(arg_memb.substr(2).c_str()); @@ -837,27 +837,27 @@ static void select_stmt(RTLIL::Design *design, std::string arg) sel.selected_members[mod->name].insert(it.first); } } else - if (arg_memb.substr(0, 2) == "m:") { + if (arg_memb.compare(0, 2, "m:") == 0) { for (auto &it : mod->memories) if (match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "c:") { + if (arg_memb.compare(0, 2, "c:") ==0) { for (auto &it : mod->cells_) if (match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "t:") { + if (arg_memb.compare(0, 2, "t:") == 0) { for (auto &it : mod->cells_) if (match_ids(it.second->type, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "p:") { + if (arg_memb.compare(0, 2, "p:") == 0) { for (auto &it : mod->processes) if (match_ids(it.first, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "a:") { + if (arg_memb.compare(0, 2, "a:") == 0) { for (auto &it : mod->wires_) if (match_attr(it.second->attributes, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); @@ -871,12 +871,12 @@ static void select_stmt(RTLIL::Design *design, std::string arg) if (match_attr(it.second->attributes, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else - if (arg_memb.substr(0, 2) == "r:") { + if (arg_memb.compare(0, 2, "r:") == 0) { for (auto &it : mod->cells_) if (match_attr(it.second->parameters, arg_memb.substr(2))) sel.selected_members[mod->name].insert(it.first); } else { - if (arg_memb.substr(0, 2) == "n:") + if (arg_memb.compare(0, 2, "n:") == 0) arg_memb = arg_memb.substr(2); for (auto &it : mod->wires_) if (match_ids(it.first, arg_memb)) @@ -927,7 +927,7 @@ void handle_extra_select_args(Pass *pass, vector args, size_t argidx, si { work_stack.clear(); for (; argidx < args_size; argidx++) { - if (args[argidx].substr(0, 1) == "-") { + if (args[argidx].compare(0, 1, "-") == 0) { if (pass != NULL) pass->cmd_error(args, argidx, "Unexpected option in selection arguments."); else diff --git a/passes/cmds/setattr.cc b/passes/cmds/setattr.cc index b9fcc3e7a..1ccfc2e86 100644 --- a/passes/cmds/setattr.cc +++ b/passes/cmds/setattr.cc @@ -34,7 +34,7 @@ struct setunset_t setunset_t(std::string set_name, std::string set_value) : name(RTLIL::escape_id(set_name)), value(), unset(false) { - if (set_value.substr(0, 1) == "\"" && set_value.substr(GetSize(set_value)-1) == "\"") { + if (set_value.compare(0, 1, "\"") == 0 && set_value.compare(GetSize(set_value)-1, std::string::npos, "\"") == 0) { value = RTLIL::Const(set_value.substr(1, GetSize(set_value)-2)); } else { RTLIL::SigSpec sig_value; diff --git a/passes/cmds/show.cc b/passes/cmds/show.cc index cf729215f..2e9fc72af 100644 --- a/passes/cmds/show.cc +++ b/passes/cmds/show.cc @@ -527,11 +527,11 @@ struct ShowWorker { currentColor = xorshift32(currentColor); if (wires_on_demand.count(it.first) > 0) { - if (it.second.in.size() == 1 && it.second.out.size() > 1 && it.second.in.begin()->substr(0, 1) == "p") + if (it.second.in.size() == 1 && it.second.out.size() > 1 && it.second.in.begin()->compare(0, 1, "p") == 0) it.second.out.erase(*it.second.in.begin()); if (it.second.in.size() == 1 && it.second.out.size() == 1) { std::string from = *it.second.in.begin(), to = *it.second.out.begin(); - if (from != to || from.substr(0, 1) != "p") + if (from != to || from.compare(0, 1, "p") != 0) fprintf(f, "%s:e -> %s:w [%s, %s];\n", from.c_str(), to.c_str(), nextColor(it.second.color).c_str(), widthLabel(it.second.bits).c_str()); continue; } @@ -808,7 +808,7 @@ struct ShowPass : public Pass { if (f.fail()) log_error("Can't open lib file `%s'.\n", filename.c_str()); RTLIL::Design *lib = new RTLIL::Design; - Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog"); + Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog")); libs.push_back(lib); } diff --git a/passes/equiv/equiv_opt.cc b/passes/equiv/equiv_opt.cc index 3596dfd7b..19d1c25ac 100644 --- a/passes/equiv/equiv_opt.cc +++ b/passes/equiv/equiv_opt.cc @@ -97,7 +97,7 @@ struct EquivOptPass:public ScriptPass for (; argidx < args.size(); argidx++) { if (command.empty()) { - if (args[argidx].substr(0, 1) == "-") + if (args[argidx].compare(0, 1, "-") == 0) cmd_error(args, argidx, "Unknown option."); } else { command += " "; diff --git a/passes/equiv/equiv_struct.cc b/passes/equiv/equiv_struct.cc index a7973fd04..6672948b9 100644 --- a/passes/equiv/equiv_struct.cc +++ b/passes/equiv/equiv_struct.cc @@ -215,9 +215,9 @@ struct EquivStructWorker if (c != nullptr) { string n = cell_name.str(); cells_type = c->type; - if (GetSize(n) > 5 && n.substr(GetSize(n)-5) == "_gold") + if (GetSize(n) > 5 && n.compare(GetSize(n)-5, std::string::npos, "_gold") == 0) gold_cells.push_back(c); - else if (GetSize(n) > 5 && n.substr(GetSize(n)-5) == "_gate") + else if (GetSize(n) > 5 && n.compare(GetSize(n)-5, std::string::npos, "_gate") == 0) gate_cells.push_back(c); else other_cells.push_back(c); diff --git a/passes/opt/opt_clean.cc b/passes/opt/opt_clean.cc index a8a8e0bc7..905c95b6c 100644 --- a/passes/opt/opt_clean.cc +++ b/passes/opt/opt_clean.cc @@ -222,10 +222,10 @@ bool compare_signals(RTLIL::SigBit &s1, RTLIL::SigBit &s2, SigPool ®s, SigPoo bool check_public_name(RTLIL::IdString id) { - const std::string &id_str = id.str(); - if (id_str[0] == '$') + if (id.begins_with("$")) return false; - if (id_str.substr(0, 2) == "\\_" && (id_str[id_str.size()-1] == '_' || id_str.find("_[") != std::string::npos)) + const std::string &id_str = id.str(); + if (id.begins_with("\\_") && (id.ends_with("_") || id_str.find("_[") != std::string::npos)) return false; if (id_str.find(".$") != std::string::npos) return false; diff --git a/passes/opt/opt_merge.cc b/passes/opt/opt_merge.cc index 8964171e6..cac7c0a6f 100644 --- a/passes/opt/opt_merge.cc +++ b/passes/opt/opt_merge.cc @@ -222,7 +222,7 @@ struct OptMergeWorker return true; } - if (cell1->type.substr(0, 1) == "$" && conn1.count("\\Q") != 0) { + if (cell1->type.begins_with("$") && conn1.count("\\Q") != 0) { std::vector q1 = dff_init_map(cell1->getPort("\\Q")).to_sigbit_vector(); std::vector q2 = dff_init_map(cell2->getPort("\\Q")).to_sigbit_vector(); for (size_t i = 0; i < q1.size(); i++) diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc index 450626f4a..8d42a37c3 100644 --- a/passes/opt/opt_rmdff.cc +++ b/passes/opt/opt_rmdff.cc @@ -278,7 +278,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff) sig_c = dff->getPort("\\C"); val_cp = RTLIL::Const(dff->type == "$_DFF_P_", 1); } - else if (dff->type.begins_with("$_DFF_") && dff->type.substr(9) == "_" && + else if (dff->type.begins_with("$_DFF_") && dff->type.compare(9, 1, "_") == 0 && (dff->type[6] == 'N' || dff->type[6] == 'P') && (dff->type[7] == 'N' || dff->type[7] == 'P') && (dff->type[8] == '0' || dff->type[8] == '1')) { @@ -290,7 +290,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff) val_rp = RTLIL::Const(dff->type[7] == 'P', 1); val_rv = RTLIL::Const(dff->type[8] == '1', 1); } - else if (dff->type.begins_with("$_DFFE_") && dff->type.substr(9) == "_" && + else if (dff->type.begins_with("$_DFFE_") && dff->type.compare(9, 1, "_") == 0 && (dff->type[7] == 'N' || dff->type[7] == 'P') && (dff->type[8] == 'N' || dff->type[8] == 'P')) { sig_d = dff->getPort("\\D"); diff --git a/passes/sat/expose.cc b/passes/sat/expose.cc index 71ce1683d..7631d87e6 100644 --- a/passes/sat/expose.cc +++ b/passes/sat/expose.cc @@ -151,7 +151,7 @@ void create_dff_dq_map(std::map &map, RTLIL::De continue; } - if (info.cell->type.size() == 10 && info.cell->type.substr(0, 6) == "$_DFF_") { + if (info.cell->type.size() == 10 && info.cell->type.begins_with("$_DFF_")) { info.bit_clk = sigmap(info.cell->getPort("\\C")).as_bit(); info.bit_arst = sigmap(info.cell->getPort("\\R")).as_bit(); info.clk_polarity = info.cell->type[6] == 'P'; diff --git a/passes/sat/miter.cc b/passes/sat/miter.cc index e1da1a9e6..49ef40061 100644 --- a/passes/sat/miter.cc +++ b/passes/sat/miter.cc @@ -59,7 +59,7 @@ void create_miter_equiv(struct Pass *that, std::vector args, RTLIL: } break; } - if (argidx+3 != args.size() || args[argidx].substr(0, 1) == "-") + if (argidx+3 != args.size() || args[argidx].compare(0, 1, "-") == 0) that->cmd_error(args, argidx, "command argument error"); RTLIL::IdString gold_name = RTLIL::escape_id(args[argidx++]); @@ -279,7 +279,7 @@ void create_miter_assert(struct Pass *that, std::vector args, RTLIL } break; } - if ((argidx+1 != args.size() && argidx+2 != args.size()) || args[argidx].substr(0, 1) == "-") + if ((argidx+1 != args.size() && argidx+2 != args.size()) || args[argidx].compare(0, 1, "-") == 0) that->cmd_error(args, argidx, "command argument error"); IdString module_name = RTLIL::escape_id(args[argidx++]); diff --git a/passes/sat/sat.cc b/passes/sat/sat.cc index e4654d835..dd56d8c71 100644 --- a/passes/sat/sat.cc +++ b/passes/sat/sat.cc @@ -519,7 +519,7 @@ struct SatHelper for (auto &p : d->connections()) { if (d->type == "$dff" && p.first == "\\CLK") continue; - if (d->type.substr(0, 6) == "$_DFF_" && p.first == "\\C") + if (d->type.begins_with("$_DFF_") && p.first == "\\C") continue; queued_signals.add(handled_signals.remove(sigmap(p.second))); } @@ -797,7 +797,7 @@ struct SatHelper vector data; string name = wd.first.c_str(); - while (name.substr(0, 1) == "\\") + while (name.compare(0, 1, "\\") == 0) name = name.substr(1); fprintf(f, " { \"name\": \"%s\", \"wave\": \"", name.c_str()); @@ -1353,7 +1353,7 @@ struct SatPass : public Pass { if (show_regs) { pool reg_wires; for (auto cell : module->cells()) { - if (cell->type == "$dff" || cell->type.substr(0, 6) == "$_DFF_") + if (cell->type == "$dff" || cell->type.begins_with("$_DFF_")) for (auto bit : cell->getPort("\\Q")) if (bit.wire) reg_wires.insert(bit.wire); diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index 7cb784505..9db8aafa7 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -333,12 +333,12 @@ std::string remap_name(RTLIL::IdString abc_name, RTLIL::Wire **orig_wire = nullp { std::string abc_sname = abc_name.substr(1); bool isnew = false; - if (abc_sname.substr(0, 4) == "new_") + if (abc_sname.compare(0, 4, "new_") == 0) { abc_sname.erase(0, 4); isnew = true; } - if (abc_sname.substr(0, 5) == "ys__n") + if (abc_sname.compare(0, 5, "ys__n") == 0) { abc_sname.erase(0, 5); if (std::isdigit(abc_sname.at(0))) @@ -1562,10 +1562,10 @@ struct AbcPass : public Pass { size_t pos = arg.find_first_of(':'); int lut_mode = 0, lut_mode2 = 0; if (pos != string::npos) { - lut_mode = std::atoi(arg.substr(0, pos).c_str()); - lut_mode2 = std::atoi(arg.substr(pos+1).c_str()); + lut_mode = atoi(arg.substr(0, pos).c_str()); + lut_mode2 = atoi(arg.substr(pos+1).c_str()); } else { - lut_mode = std::atoi(arg.c_str()); + lut_mode = atoi(arg.c_str()); lut_mode2 = lut_mode; } lut_costs.clear(); diff --git a/passes/techmap/dff2dffe.cc b/passes/techmap/dff2dffe.cc index 2dc577c73..c0bf3a665 100644 --- a/passes/techmap/dff2dffe.cc +++ b/passes/techmap/dff2dffe.cc @@ -377,7 +377,7 @@ struct Dff2dffePass : public Pass { mod->remove(cell); continue; } - if (cell->type.substr(0, 7) == "$_DFFE_") { + if (cell->type.begins_with("$_DFFE_")) { if (min_ce_use >= 0) { int ce_use = 0; for (auto cell_other : mod->selected_cells()) { @@ -390,8 +390,8 @@ struct Dff2dffePass : public Pass { continue; } - bool clk_pol = cell->type.substr(7, 1) == "P"; - bool en_pol = cell->type.substr(8, 1) == "P"; + bool clk_pol = cell->type.compare(7, 1, "P") == 0; + bool en_pol = cell->type.compare(8, 1, "P") == 0; RTLIL::SigSpec tmp = mod->addWire(NEW_ID); mod->addDff(NEW_ID, cell->getPort("\\C"), tmp, cell->getPort("\\Q"), clk_pol); if (en_pol) diff --git a/passes/techmap/extract.cc b/passes/techmap/extract.cc index fff90f13c..e3b4faba1 100644 --- a/passes/techmap/extract.cc +++ b/passes/techmap/extract.cc @@ -54,7 +54,7 @@ public: RTLIL::Const unified_param(RTLIL::IdString cell_type, RTLIL::IdString param, RTLIL::Const value) { - if (cell_type.substr(0, 1) != "$" || cell_type.substr(0, 2) == "$_") + if (!cell_type.begins_with("$") || cell_type.begins_with("$_")) return value; #define param_bool(_n) if (param == _n) return value.as_bool(); @@ -203,7 +203,7 @@ bool module2graph(SubCircuit::Graph &graph, RTLIL::Module *mod, bool constports, continue; std::string type = cell->type.str(); - if (sel == NULL && type.substr(0, 2) == "\\$") + if (sel == NULL && type.compare(0, 2, "\\$") == 0) type = type.substr(1); graph.createNode(cell->name.str(), type, (void*)cell); @@ -594,7 +594,7 @@ struct ExtractPass : public Pass { map = new RTLIL::Design; for (auto &filename : map_filenames) { - if (filename.substr(0, 1) == "%") + if (filename.compare(0, 1, "%") == 0) { if (!saved_designs.count(filename.substr(1))) { delete map; @@ -613,10 +613,10 @@ struct ExtractPass : public Pass { delete map; log_cmd_error("Can't open map file `%s'.\n", filename.c_str()); } - Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog"); + Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog")); f.close(); - if (filename.size() <= 3 || filename.substr(filename.size()-3) != ".il") { + if (filename.size() <= 3 || filename.compare(filename.size()-3, std::string::npos, ".il") != 0) { Pass::call(map, "proc"); Pass::call(map, "opt_clean"); } diff --git a/passes/techmap/muxcover.cc b/passes/techmap/muxcover.cc index 45987392e..81546249c 100644 --- a/passes/techmap/muxcover.cc +++ b/passes/techmap/muxcover.cc @@ -675,11 +675,11 @@ struct MuxcoverPass : public Pass { for (argidx = 1; argidx < args.size(); argidx++) { const auto &arg = args[argidx]; - if (arg.size() >= 6 && arg.substr(0,6) == "-mux2=") { + if (arg.size() >= 6 && arg.compare(0,6,"-mux2=") == 0) { cost_mux2 = atoi(arg.substr(6).c_str()); continue; } - if (arg.size() >= 5 && arg.substr(0,5) == "-mux4") { + if (arg.size() >= 5 && arg.compare(0,5,"-mux4") == 0) { use_mux4 = true; if (arg.size() > 5) { if (arg[5] != '=') break; @@ -687,7 +687,7 @@ struct MuxcoverPass : public Pass { } continue; } - if (arg.size() >= 5 && arg.substr(0,5) == "-mux8") { + if (arg.size() >= 5 && arg.compare(0,5,"-mux8") == 0) { use_mux8 = true; if (arg.size() > 5) { if (arg[5] != '=') break; @@ -695,7 +695,7 @@ struct MuxcoverPass : public Pass { } continue; } - if (arg.size() >= 6 && arg.substr(0,6) == "-mux16") { + if (arg.size() >= 6 && arg.compare(0,6,"-mux16") == 0) { use_mux16 = true; if (arg.size() > 6) { if (arg[6] != '=') break; @@ -703,7 +703,7 @@ struct MuxcoverPass : public Pass { } continue; } - if (arg.size() >= 6 && arg.substr(0,6) == "-dmux=") { + if (arg.size() >= 6 && arg.compare(0,6,"-dmux=") == 0) { cost_dmux = atoi(arg.substr(6).c_str()); continue; } diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc index ceb053825..2708b08ae 100644 --- a/passes/techmap/techmap.cc +++ b/passes/techmap/techmap.cc @@ -243,7 +243,7 @@ struct TechmapWorker if (positional_ports.count(portname) > 0) portname = positional_ports.at(portname); if (tpl->wires_.count(portname) == 0 || tpl->wires_.at(portname)->port_id == 0) { - if (portname.substr(0, 1) == "$") + if (portname.begins_with("$")) log_error("Can't map port `%s' of cell `%s' to template `%s'!\n", portname.c_str(), cell->name.c_str(), tpl->name.c_str()); continue; } @@ -341,7 +341,7 @@ struct TechmapWorker RTLIL::Cell *c = module->addCell(c_name, it.second); design->select(module, c); - if (!flatten_mode && c->type.substr(0, 2) == "\\$") + if (!flatten_mode && c->type.begins_with("\\$")) c->type = c->type.substr(1); for (auto &it2 : c->connections_) { @@ -406,7 +406,7 @@ struct TechmapWorker continue; std::string cell_type = cell->type.str(); - if (in_recursion && cell_type.substr(0, 2) == "\\$") + if (in_recursion && cell->type.begins_with("\\$")) cell_type = cell_type.substr(1); if (celltypeMap.count(cell_type) == 0) { @@ -468,7 +468,7 @@ struct TechmapWorker std::string cell_type = cell->type.str(); - if (in_recursion && cell_type.substr(0, 2) == "\\$") + if (in_recursion && cell->type.begins_with("\\$")) cell_type = cell_type.substr(1); for (auto &tpl_name : celltypeMap.at(cell_type)) @@ -602,7 +602,7 @@ struct TechmapWorker } for (auto conn : cell->connections()) { - if (conn.first.substr(0, 1) == "$") + if (conn.first.begins_with("$")) continue; if (tpl->wires_.count(conn.first) > 0 && tpl->wires_.at(conn.first)->port_id > 0) continue; @@ -725,7 +725,7 @@ struct TechmapWorker for (auto &it : twd) { - if (it.first.substr(0, 12) != "_TECHMAP_DO_" || it.second.empty()) + if (it.first.compare(0, 12, "_TECHMAP_DO_") != 0 || it.second.empty()) continue; auto &data = it.second.front(); @@ -874,7 +874,7 @@ struct TechmapWorker tpl->cloneInto(m); for (auto cell : m->cells()) { - if (cell->type.substr(0, 2) == "\\$") + if (cell->type.begins_with("\\$")) cell->type = cell->type.substr(1); } @@ -1113,7 +1113,7 @@ struct TechmapPass : public Pass { Frontend::frontend_call(map, &f, "", verilog_frontend); } else { for (auto &fn : map_files) - if (fn.substr(0, 1) == "%") { + if (fn.compare(0, 1, "%") == 0) { if (!saved_designs.count(fn.substr(1))) { delete map; log_cmd_error("Can't saved design `%s'.\n", fn.c_str()+1); @@ -1128,7 +1128,7 @@ struct TechmapPass : public Pass { yosys_input_files.insert(fn); if (f.fail()) log_cmd_error("Can't open map file `%s'\n", fn.c_str()); - Frontend::frontend_call(map, &f, fn, (fn.size() > 3 && fn.substr(fn.size()-3) == ".il") ? "ilang" : verilog_frontend); + Frontend::frontend_call(map, &f, fn, (fn.size() > 3 && fn.compare(fn.size()-3, std::string::npos, ".il") == 0 ? "ilang" : verilog_frontend)); } } @@ -1143,7 +1143,7 @@ struct TechmapPass : public Pass { free(p); } else { string module_name = it.first.str(); - if (module_name.substr(0, 2) == "\\$") + if (it.first.begins_with("\\$")) module_name = module_name.substr(1); celltypeMap[module_name].insert(it.first); } diff --git a/passes/tests/test_cell.cc b/passes/tests/test_cell.cc index cea247dc7..319669955 100644 --- a/passes/tests/test_cell.cc +++ b/passes/tests/test_cell.cc @@ -872,7 +872,7 @@ struct TestCellPass : public Pass { continue; } - if (args[argidx].substr(0, 1) == "/") { + if (args[argidx].compare(0, 1, "/") == 0) { std::vector new_selected_cell_types; for (auto it : selected_cell_types) if (it != args[argidx].substr(1)) diff --git a/techlibs/ice40/ice40_braminit.cc b/techlibs/ice40/ice40_braminit.cc index 4fa6b0792..1a139ffea 100644 --- a/techlibs/ice40/ice40_braminit.cc +++ b/techlibs/ice40/ice40_braminit.cc @@ -69,13 +69,13 @@ static void run_ice40_braminit(Module *module) for (int i = 0; i < GetSize(line); i++) { - if (in_comment && line.substr(i, 2) == "*/") { + if (in_comment && line.compare(i, 2, "*/") == 0) { line[i] = ' '; line[i+1] = ' '; in_comment = false; continue; } - if (!in_comment && line.substr(i, 2) == "/*") + if (!in_comment && line.compare(i, 2, "/*") == 0) in_comment = true; if (in_comment) line[i] = ' '; @@ -87,7 +87,7 @@ static void run_ice40_braminit(Module *module) long value; token = next_token(line, " \t\r\n"); - if (token.empty() || token.substr(0, 2) == "//") + if (token.empty() || token.compare(0, 2, "//") == 0) break; if (token[0] == '@') { -- 2.30.2