Gabriele Cosmo
76 lines
1.6 KiB
Plaintext
76 lines
1.6 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sprintf
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#define tools_sprintf
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#include <string>
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#include "snpf"
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namespace tools {
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inline bool vsprintf(std::string& a_string,
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int a_length,const char* a_format,va_list a_args){
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a_string.clear();
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if(a_length<0) return false;
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if(!a_format) return false;
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char* s = new char[a_length+1];
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if(!s) return false;
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s[a_length] = '\0';
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int n = vsnpf(s,a_length+1,a_format,a_args);
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if(n>a_length) {
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delete [] s;
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return false;
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}
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if(s[a_length]!='\0') {
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delete [] s;
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return false;
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}
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a_string = s;
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delete [] s;
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return true;
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}
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inline bool sprintf(std::string& a_string,
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int a_length,const char* a_format,...){
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a_string.clear();
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if(a_length<0) return false;
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if(!a_format) return false;
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char* s = new char[a_length+1];
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if(!s) return false;
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s[a_length] = '\0';
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va_list args;
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va_start(args,a_format);
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int n = vsnpf(s,a_length+1,a_format,args);
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va_end(args);
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if(n>a_length) {
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delete [] s;
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return false;
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}
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if(s[a_length]!='\0') {
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delete [] s;
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return false;
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}
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a_string = s;
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delete [] s;
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return true;
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}
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template <class MATRIX> //for example : MATRIX = mat<symbol,4>
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inline void set_matrix(MATRIX& a_matrix,const std::string& a_fmt) {
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unsigned int DR = a_matrix.rows();
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unsigned int DC = a_matrix.cols();
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std::string ss;
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for(unsigned int i=0;i<DR;i++) {
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for(unsigned int j=0;j<DC;j++) {
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tools::sprintf(ss,128,a_fmt.c_str(),i,j);
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a_matrix.set_value(i,j,ss);
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}
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}
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}
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}
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#endif
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