Remove some compilation and CI warnings

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
           submodules: "recursive"
 
       - name: Cache gmp build
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             depends/gmp
@@ -103,7 +103,7 @@ jobs:
           cd ../
 
       - name: Cache circuits
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             circuits
@@ -126,23 +126,23 @@ jobs:
           ./run_tests.sh
 
       - name: upload macOS arm64 artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-macOS-arm64
           path: |
             package
           if-no-files-found: error
 
       - name: upload iOS artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-iOS
           path: |
             package_ios
           if-no-files-found: error
 
       - name: upload iOS Simulator artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-iOS-Simulator
           path: |
@@ -163,7 +163,7 @@ jobs:
           version: 1.0
 
       - name: Cache gmp build
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             depends/gmp
@@ -189,23 +189,23 @@ jobs:
         run: make android_x86_64
 
       - name: upload Linux amd64 artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-linux-amd64
           path: |
             package
           if-no-files-found: error
 
       - name: upload Android artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-Android
           path: |
             package_android
           if-no-files-found: error
 
       - name: upload Android x86_64 artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: witnesscalc-Android-x86_64
           path: |

build/fr.cpp

@@ -65,8 +65,9 @@ char *Fr_element2str(PFrElement pE) {
     mpz_t r;
     if (!(pE->type & Fr_LONG)) {
         if (pE->shortVal>=0) {
-            char *r = new char[32];
-            sprintf(r, "%d", pE->shortVal);
+            const size_t rLn = 32;
+            char *r = new char[rLn];
+            snprintf(r, rLn, "%d", pE->shortVal);
             return r;
         } else {
             mpz_init_set_si(r, pE->shortVal);

src/calcwit.cpp

@@ -107,8 +107,9 @@ void Circom_CalcWit::setInputSignal(u64 h, uint i,  FrElement & val){
   uint si = circuit->InputHashMap[pos].signalid+i;
   if (inputSignalAssigned[si-get_main_input_signal_start()]) {
     fprintf(stderr, "Signal assigned twice: %d\n", si);
-    char err[256];
-    sprintf(err, "Signal assigned twice: %d", si);
+    const size_t errLn = 256;
+    char err[errLn];
+    snprintf(err, errLn, "Signal assigned twice: %d", si);
     throw std::runtime_error(err);
   }
   signalValues[si] = val;

src/witnesscalc.cpp

@@ -85,7 +85,7 @@ Circom_Circuit* loadCircuit(const void *buffer, unsigned long buffer_size) {
         templateInsId2IOSignalInfo1[index[i]] = p;
       }
     }
-    circuit->templateInsId2IOSignalInfo = move(templateInsId2IOSignalInfo1);
+    circuit->templateInsId2IOSignalInfo = std::move(templateInsId2IOSignalInfo1);
 
     return circuit;
 }