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* Doxygenified comments, simplifying them and shortening in the process

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* Eliminated extra space


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10104 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2003-11-20 06:21:54 +00:00
parent ff0cbe175d
commit 9839969110
1 changed files with 43 additions and 67 deletions
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110
tools/gccld/gccld.cpp
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@ -90,56 +90,41 @@ namespace {
namespace llvm {
//
// Function: PrintAndReturn ()
//
// Description:
// Prints a message (usually error message) to standard error (stderr) and
// returns a value usable for an exit status.
//
// Inputs:
// progname - The name of the program (i.e. argv[0]).
// Message - The message to print to standard error.
// Extra - Extra information to print between the program name and thei
// message. It is optional.
//
// Outputs:
// None.
//
// Return value:
// Returns a value that can be used as the exit status (i.e. for exit()).
//
/// PrintAndReturn - Prints a message to standard error and returns a value
/// usable for an exit status.
///
/// Inputs:
/// progname - The name of the program (i.e. argv[0]).
/// Message - The message to print to standard error.
/// Extra - Extra information to print between the program name and thei
/// message. It is optional.
///
/// Return value:
/// Returns a value that can be used as the exit status (i.e. for exit()).
///
int
PrintAndReturn (const char *progname,
const std::string &Message,
const std::string &Extra)
PrintAndReturn(const char *progname,
const std::string &Message,
const std::string &Extra)
{
std::cerr << progname << Extra << ": " << Message << "\n";
return 1;
}
//
//
// Function: CopyEnv()
//
// Description:
// This function takes an array of environment variables and makes a
// copy of it. This copy can then be manipulated any way the caller likes
// without affecting the process's real environment.
//
// Inputs:
// envp - An array of C strings containing an environment.
//
// Outputs:
// None.
//
// Return value:
// NULL - An error occurred.
//
// Otherwise, a pointer to a new array of C strings is returned. Every string
// in the array is a duplicate of the one in the original array (i.e. we do
// not copy the char *'s from one array to another).
//
/// CopyEnv - This function takes an array of environment variables and makes a
/// copy of it. This copy can then be manipulated any way the caller likes
/// without affecting the process's real environment.
///
/// Inputs:
/// envp - An array of C strings containing an environment.
///
/// Return value:
/// NULL - An error occurred.
///
/// Otherwise, a pointer to a new array of C strings is returned. Every string
/// in the array is a duplicate of the one in the original array (i.e. we do
/// not copy the char *'s from one array to another).
///
char ** CopyEnv(char ** const envp) {
// Count the number of entries in the old list;
unsigned entries; // The number of entries in the old environment list
@ -173,28 +158,19 @@ char ** CopyEnv(char ** const envp) {
}
//
// Function: RemoveEnv()
//
// Description:
// Remove the specified environment variable from the environment array.
//
// Inputs:
// name - The name of the variable to remove. It cannot be NULL.
// envp - The array of environment variables. It cannot be NULL.
//
// Outputs:
// envp - The pointer to the specified variable name is removed.
//
// Return value:
// None.
//
// Notes:
// This is mainly done because functions to remove items from the environment
// are not available across all platforms. In particular, Solaris does not
// seem to have an unsetenv() function or a setenv() function (or they are
// undocumented if they do exist).
//
/// RemoveEnv - Remove the specified environment variable from the environment
/// array.
///
/// Inputs:
/// name - The name of the variable to remove. It cannot be NULL.
/// envp - The array of environment variables. It cannot be NULL.
///
/// Notes:
/// This is mainly done because functions to remove items from the environment
/// are not available across all platforms. In particular, Solaris does not
/// seem to have an unsetenv() function or a setenv() function (or they are
/// undocumented if they do exist).
///
void RemoveEnv(const char * name, char ** const envp) {
for (unsigned index=0; envp[index] != NULL; index++) {
// Find the first equals sign in the array and make it an EOS character.
@ -220,7 +196,7 @@ void RemoveEnv(const char * name, char ** const envp) {
int main(int argc, char **argv, char **envp) {
cl::ParseCommandLineOptions(argc, argv, " llvm linker for GCC\n");
std::string ModuleID ("gccld-output");
std::string ModuleID("gccld-output");
std::auto_ptr<Module> Composite(new Module(ModuleID));
// We always look first in the current directory when searching for libraries.