No `using namespace std` anywhere.

Also added missing std:: prefix to remaining cases of std::size_t,
std::[u]int[0-9]+_t, std::sin() etc., std::exit().

src/Plugins/TgaImporter/Test/TgaImporterTest.cpp

@@ -21,7 +21,6 @@
 
 #include "../TgaImporter.h"
 
-using namespace std;
 using namespace Corrade::Utility;
 
 CORRADE_TEST_MAIN(Magnum::Trade::TgaImporter::Test::TgaImporterTest)
@@ -39,7 +38,7 @@ TgaImporterTest::TgaImporterTest() {
 }
 
 void TgaImporterTest::openInexistent() {
-    ostringstream debug;
+    std::ostringstream debug;
     Error::setOutput(&debug);
 
     TgaImporter importer;
@@ -49,9 +48,9 @@ void TgaImporterTest::openInexistent() {
 
 void TgaImporterTest::openShort() {
     const char data[] = { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-    istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
-    ostringstream debug;
+    std::ostringstream debug;
     Error::setOutput(&debug);
 
     TgaImporter importer;
@@ -61,9 +60,9 @@ void TgaImporterTest::openShort() {
 
 void TgaImporterTest::paletted() {
     const char data[] = { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-    istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
-    ostringstream debug;
+    std::ostringstream debug;
     Error::setOutput(&debug);
 
     TgaImporter importer;
@@ -73,9 +72,9 @@ void TgaImporterTest::paletted() {
 
 void TgaImporterTest::nonRgb() {
     const char data[] = { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-    istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
-    ostringstream debug;
+    std::ostringstream debug;
     Error::setOutput(&debug);
 
     TgaImporter importer;
@@ -85,9 +84,9 @@ void TgaImporterTest::nonRgb() {
 
 void TgaImporterTest::bits16() {
     const char data[] = { 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0 };
-    istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
-    ostringstream debug;
+    std::ostringstream debug;
     Error::setOutput(&debug);
 
     TgaImporter importer;
@@ -107,7 +106,7 @@ void TgaImporterTest::bits24() {
         3, 2, 1, 4, 3, 2, 5, 4, 3, 6, 5, 4, 7, 6, 5, 8, 7, 6
     };
     #endif
-    std::istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
     TgaImporter importer;
     CORRADE_VERIFY(importer.open(in));
@@ -119,7 +118,7 @@ void TgaImporterTest::bits24() {
     #endif
     CORRADE_COMPARE(image->size(), Math::Vector2<GLsizei>(2, 3));
     CORRADE_VERIFY(image->type() == TypeTraits<GLubyte>::imageType());
-    CORRADE_COMPARE(string(static_cast<const char*>(image->data()), 2*3*3), string(pixels, 2*3*3));
+    CORRADE_COMPARE(std::string(static_cast<const char*>(image->data()), 2*3*3), std::string(pixels, 2*3*3));
 }
 
 void TgaImporterTest::bits32() {
@@ -134,7 +133,7 @@ void TgaImporterTest::bits32() {
         3, 2, 1, 1, 4, 3, 2, 1, 5, 4, 3, 1, 6, 5, 4, 1, 7, 6, 5, 1, 8, 7, 6, 1
     };
     #endif
-    std::istringstream in(string(data, sizeof(data)));
+    std::istringstream in(std::string(data, sizeof(data)));
 
     TgaImporter importer;
     CORRADE_VERIFY(importer.open(in));
@@ -146,7 +145,7 @@ void TgaImporterTest::bits32() {
     #endif
     CORRADE_COMPARE(image->size(), Math::Vector2<GLsizei>(2, 3));
     CORRADE_VERIFY(image->type() == TypeTraits<GLubyte>::imageType());
-    CORRADE_COMPARE(string(static_cast<const char*>(image->data()), 2*3*3), string(pixels, 2*3*3));
+    CORRADE_COMPARE(std::string(static_cast<const char*>(image->data()), 2*3*3), std::string(pixels, 2*3*3));
 }
 
 }}}}

src/Plugins/TgaImporter/TgaImporter.cpp

@@ -22,8 +22,6 @@
 #include "Math/Vector2.h"
 #include <Swizzle.h>
 #include "Trade/ImageData.h"
-
-using namespace std;
 using namespace Corrade::Utility;
 
 namespace Magnum { namespace Trade { namespace TgaImporter {
@@ -32,8 +30,8 @@ namespace Magnum { namespace Trade { namespace TgaImporter {
 static_assert(sizeof(TgaImporter::Header) == 18, "TgaImporter: header size is not 18 bytes");
 #endif
 
-bool TgaImporter::TgaImporter::open(const string& filename, const string& name) {
-    ifstream in(filename.c_str());
+bool TgaImporter::TgaImporter::open(const std::string& filename, const std::string& name) {
+    std::ifstream in(filename.c_str());
     if(!in.good()) {
         Error() << "TgaImporter: cannot open file" << filename;
         return false;
@@ -43,7 +41,7 @@ bool TgaImporter::TgaImporter::open(const string& filename, const string& name)
     return status;
 }
 
-bool TgaImporter::open(istream& in, const string& name) {
+bool TgaImporter::open(std::istream& in, const std::string& name) {
     if(_image) close();
     if(!in.good()) {
         Error() << "TgaImporter: cannot read input stream";
@@ -51,10 +49,10 @@ bool TgaImporter::open(istream& in, const string& name) {
     }
 
     /* Check if the file is long enough */
-    in.seekg(0, istream::end);
-    streampos filesize = in.tellg();
-    in.seekg(0, istream::beg);
-    if(filesize < streampos(sizeof(Header))) {
+    in.seekg(0, std::istream::end);
+    std::streampos filesize = in.tellg();
+    in.seekg(0, std::istream::beg);
+    if(filesize < std::streampos(sizeof(Header))) {
         Error() << "TgaImporter: the file is too short:" << filesize << "bytes";
         return false;
     }
@@ -97,7 +95,7 @@ bool TgaImporter::open(istream& in, const string& name) {
             return false;
     }
 
-    size_t size = header.width*header.height*header.bpp/8;
+    std::size_t size = header.width*header.height*header.bpp/8;
     GLubyte* buffer = new GLubyte[size];
     in.read(reinterpret_cast<char*>(buffer), size);