Override Client.write(const char*)

src/TinyGsmClientA6.h

@@ -108,6 +108,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size() && sock_connected) {

src/TinyGsmClientBG96.h

@@ -108,6 +108,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size()) {

src/TinyGsmClientESP8266.h

@@ -90,6 +90,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size() && sock_connected) {

src/TinyGsmClientM590.h

@@ -105,6 +105,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size() && sock_connected) {

src/TinyGsmClientSIM800.h

@@ -114,6 +114,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size() && sock_connected) {

src/TinyGsmClientUBLOX.h

@@ -107,6 +107,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     if (!rx.size()) {

src/TinyGsmClientXBee.h

@@ -118,6 +118,11 @@ public:
     return write(&c, 1);
   }
 
+  virtual size_t write(const char *str) {
+    if (str == NULL) return 0;
+    return write((const uint8_t *)str, strlen(str));
+  }
+
   virtual int available() {
     TINY_GSM_YIELD();
     return at->stream.available();