Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - RgV.c (source / functions) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 88.1 % 578 509 Test Date: 2026-08-21 17:02:56 Functions: 91.3 % 104 95 Legend: Lines:     hit not hit

Function Name	Hit count
RgC_RgM_mul	0
RgC_RgV_mul	1687
RgC_Rg_add	2519650
RgC_Rg_div	4492906
RgC_Rg_mul	12043665
RgC_Rg_sub	24155
RgC_add	15773921
RgC_add_i	19037678
RgC_is_ei	644
RgC_neg	1052512
RgC_neg_i	4040644
RgC_sub	5004360
RgC_sub_i	5918321
RgM_RgC_mul	32245032
RgM_RgC_mul_FpM	28
RgM_RgC_mul_FqM	28
RgM_RgC_mul_fast	32245032
RgM_RgC_mul_i	35194365
RgM_RgV_mul	0
RgM_Rg_add	7878
RgM_Rg_add_shallow	739
RgM_Rg_div	621825
RgM_Rg_mul	1338210
RgM_Rg_sub	0
RgM_Rg_sub_shallow	316605
RgM_ZC_mul_i	1942800
RgM_ZM_mul	356706
RgM_ZM_mul_worker	1942800
RgM_add	690886
RgM_det_triangular	22855
RgM_is_QM	48727
RgM_is_ZM	1287728
RgM_isdiagonal	336
RgM_isidentity	3664
RgM_isscalar	25800
RgM_liftred	13398
RgM_mul	7643736
RgM_mul_FpM	57148
RgM_mul_FpM_i	57148
RgM_mul_FqM	26005
RgM_mul_QXQM	5124
RgM_mul_ZXQM	1505
RgM_mul_fast	7627958
RgM_mul_i	4725921
RgM_multosym	0
RgM_neg	542311
RgM_powers	168
RgM_sqr	1407
RgM_sqr_QXQM	7
RgM_sqr_ZXQM	133
RgM_sqr_fast	1372
RgM_sub	174203
RgM_sumcol	400
RgM_transmul	0
RgM_transmultosym	7664
RgM_zc_mul	71981
RgM_zc_mul_i	242955
RgM_zm_mul	57899
RgMrow_RgC_mul	4795
RgMrow_RgC_mul_i	118869468
RgMrow_ZC_mul_i	32960958
RgMrow_zc_mul	70028
RgMrow_zc_mul_i	8383327
RgV_RgC_mul	5127067
RgV_RgM_mul	426379
RgV_Rg_mul	38990
RgV_add	2606578
RgV_dotproduct	1031619
RgV_dotproduct_i	15979832
RgV_dotsquare	9755951
RgV_is_ZMV	49
RgV_kill0	484910
RgV_neg	5271
RgV_prod	458547
RgV_sub	381109
RgV_sum	3192964
RgV_sumpart	0
RgV_sumpart2	0
RgV_zc_mul	83454
RgV_zc_mul_i	293453
RgV_zm_mul	58973
RgX_RgMV_eval	490
RgX_RgM_eval	1470
RgX_is_monic_ZX	5173
Rg_RgC_sub	32766
_RgM_add	3836
_RgM_cmul	5796
_RgM_mul	763
_RgM_one	4221
_RgM_red	2954
_RgM_sqr	238
_RgM_sub	0
_RgM_zero	0
_gmul	3395912
fill_scalmat	13396018
gram_matrix	4843705
isdiagonal	315
matid	9197305
scalarcol	788998
scalarcol_i	2286649
scalarcol_shallow	1497651
scalarmat	821524
scalarmat_s	252
scalarmat_shallow	3376944

Generated by: LCOV version 2.0-1