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 - FF.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 89.3 % 1443 1289 Test Date: 2026-07-23 17:04:59 Functions: 91.9 % 149 137 Legend: Lines:     hit not hit

Function Name	Hit count
F3x_equalm1	0
FFC_to_raw	44289
FFM_FFC_gauss	56
FFM_FFC_invimage	63
FFM_FFC_mul	91
FFM_FFC_wrap	210
FFM_FFM_wrap	4662
FFM_deplin	84
FFM_det	63
FFM_gauss	63
FFM_image	49
FFM_indexrank	21
FFM_inv	147
FFM_invimage	105
FFM_ker	77
FFM_mul	4494
FFM_rank	70
FFM_suppl	35
FFM_to_raw	9968
FFM_wrap	308
FFV_roots_to_pol	14
FFXQ_inv	14
FFXQ_minpoly	77
FFXQ_mul	105
FFXQ_sqr	7
FFX_add	0
FFX_ddf	7
FFX_degfact	126
FFX_disc	35
FFX_extgcd	21
FFX_factor	441
FFX_factor_squarefree	7
FFX_gcd	2744
FFX_halfgcd	0
FFX_halfgcd_all	21
FFX_ispower	168
FFX_mul	105477
FFX_nbroots	0
FFX_preimage	966
FFX_preimage_i	1029
FFX_preimagerel	168
FFX_rem	574
FFX_resultant	21
FFX_roots	103670
FFX_sqr	2499
FFX_to_raw	326209
FFX_wrap2	108816
FFX_zero	2643
FF_1	27895
FF_Frobenius	42
FF_Q_add	1337
FF_Z_Z_muldiv	3234
FF_Z_add	1365388
FF_Z_mul	3946719
FF_add	33688944
FF_charpoly	28
FF_conjvec	28
FF_div	2464014
FF_ellcard	103687
FF_ellcard_SEA	14
FF_elldata	119
FF_ellgens	18116
FF_ellgroup	26117
FF_ellinit	121418
FF_elllog	91
FF_ellmul	7
FF_ellorder	1764
FF_ellrandom	245977
FF_elltatepairing	98
FF_elltwist	27188
FF_ellweilpairing	4998
FF_equal	256033
FF_equal0	11510977
FF_equal1	26201
FF_equalm1	42
FF_f	371
FF_gen	770
FF_inv	14086
FF_ispower	210
FF_issquare	7
FF_issquareall	189
FF_log	196
FF_map	1785
FF_minpoly	154
FF_mod	416171
FF_mul	25760621
FF_mul2n	3843722
FF_neg	2299202
FF_neg_i	85064
FF_norm	28
FF_order	56
FF_p	112
FF_p_i	3153530
FF_pow	122
FF_primroot	406
FF_q	81921
FF_samechar	73637639
FF_samefield	73637639
FF_sqr	2971367
FF_sqrt	7161
FF_sqrtn	2212
FF_sub	7934927
FF_to_F2xq	549867
FF_to_F2xq_i	0
FF_to_Flxq	603026
FF_to_Flxq_i	0
FF_to_FpXQ	18973
FF_to_FpXQ_i	172802
FF_trace	28
FF_var	140
FF_zero	6108
Fp_cmp_1	0
FqC_to_FFC	3731
FqC_to_FpXQC	3436
FqM_to_FFM	1715
FqM_to_FpXQM	476
FqV_to_FFV	0
FqV_to_FpXQV	970
FqX_to_FFX	0
Fq_to_FF	143738
RgC_is_FFC	0
RgM_is_FFM	0
Rg_is_FF	0
Rg_to_raw	2222940
Tp_to_FF	8225
Z_FF_div	462
Z_to_raw	431312
_checkFF	69848702
_getFF	86039898
_initFF	84759846
_mkFF	84524124
_mkFF_i	3350761
ffgen	3460
fflog	196
fforder	63
ffprimroot	406
ffrandom	184493
gc_gcdext	21
mkFF_i	3121959
p_to_FF	9779
rawFq_to_FF	670965
raw_to_FFC	124397
raw_to_FFM	4844
raw_to_FFX	111010
raw_to_FFXC	49
raw_to_FFXM	21
raw_to_FFX_fact	448
to_FFE	266511
to_FFE_vec	18116

Generated by: LCOV version 2.0-1