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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30733-eb2d773d38) Lines: 1880 2002 93.9 % Date: 2026-03-03 09:24:12 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57630053
Q_to_Fp	226838
Qdivii	142883970
Qdivis	1592572
Qdiviu	149754903
Zp_nosquare_m1	42
_serprec	7185100
addQp	4761830
addRc	307880722
addRq	1302
addTp	7
add_intmod_same	3341104
add_rfrac	3017228
add_rfrac_scal	8823776
add_scal	29391035
add_ser_scal	414478
addqf	77
addsub_frac	40596536
addsub_frac_i	14119997
addsub_polmod	7210
addsub_polmod_scal	13457728
addsub_pp	19974913
conj_i	31497084
conjvec	84
divRc	2286191
divRq	301
divTp	3674
div_T_scal	7092475
div_intmod_same	341536
div_polmod_same	37016
div_rfrac	1187741
div_rfrac_pol	260657
div_rfrac_scal	32267
div_scal_T	15548117
div_scal_pol	14531731
div_scal_rfrac	1043616
div_scal_ser	19096
div_ser	774266
div_ser_scal	1343391
divcR	23355943
divfq	42
divpT	1204910
divpp	13213360
divqf	63
divrunextu	213515217
fix_rfrac	206780
gadd	6184012201
gaddsg	270745966
gconj	390135
gdiv	439900219
gdivgs	12993085
gdivgu	60482734
gdivgunextu	1583803
ginv	36577782
gmul	8832026332
gmul2n	143583376
gmulsg	240922914
gmulug	283683119
gred_rfrac2	39476036
gred_rfrac_simple	57633155
gsqr	1279860730
gsub	2890065478
gsubsg	3235112
inv_polmod	189772
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594567
mulRc	354467905
mulRq	2324
mulTp	4984746
mul_gen_rfrac	161432
mul_intmod_same	2818764
mul_polmod	2674945
mul_polmod_same	8532021
mul_polmod_scal	3219064
mul_rfrac	7910859
mul_rfrac_scal	10435518
mul_scal	182155704
mul_self_scal	7646106
mul_ser_scal	321174
mulcIR	11645120
mulcc	279023432
mulcxI	15636296
mulcxmI	2985903
mulcxpowIs	5564190
mulpp	17503765
mulqf	28
mulqq	1127
mulrfrac	37740119
pol2ser	5638655
quad_polmod_conj	18403
quad_polmod_mul	5860237
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852099
ser_add	3592949
ser_normalize	7658
setfrac	14998371
sqr_polmod	419392
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1017828
transtype	154222185
utoi_sign	64601412
warn_coercion	126

Generated by: LCOV version 1.16